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Windows Analysis Report
dfsvc.exe

Overview

General Information

Sample name:	dfsvc.exe
Analysis ID:	1541340
MD5:	3597d9e93852fddb92e0a0cf0452bb61
SHA1:	d25c62a57ac3000244741bda129f483f2347efa6
SHA256:	6e6cb0729cb902420739148ae23bf1c7959bc8ea2bf6b6277c5c0de45aa77df6
Infos:

Detection

Score:	22
Range:	0 - 100
Whitelisted:	false
Confidence:	60%

Signatures

AI detected suspicious sample

Allocates memory with a write watch (potentially for evading sandboxes)

Contains long sleeps (>= 3 min)

Found a high number of Window / User specific system calls (may be a loop to detect user behavior)

May sleep (evasive loops) to hinder dynamic analysis

Queries the volume information (name, serial number etc) of a device

Classification

Process Tree

System is w10x64

dfsvc.exe (PID: 6532 cmdline: "C:\Users\user\Desktop\dfsvc.exe" MD5: 3597D9E93852FDDB92E0A0CF0452BB61)

cleanup

Malware Configuration

⊘No configs have been found

Yara Signatures

⊘No yara matches

Sigma Signatures

⊘No Sigma rule has matched

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

AI detected suspicious sample

Source: Submited Sample

Integrated Neural Analysis Model: Matched 81.0% probability

Source: dfsvc.exe

Static PE information: certificate valid

Source: dfsvc.exe

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source:	Binary string: dfsvc.pdbD.^. P._CorExeMainmscoree.dll source: dfsvc.exe
Source:	Binary string: dfsvc.pdb source: dfsvc.exe

Source: classification engine

Classification label: sus22.winEXE@1/1@0/0

Source: C:\Users\user\Desktop\dfsvc.exe

File created: C:\Users\user\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\dfsvc.exe.log

Jump to behavior

Source: C:\Users\user\Desktop\dfsvc.exe

Mutant created: NULL

Source: dfsvc.exe

Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ

Source: dfsvc.exe

Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 50.01%

Source: C:\Users\user\Desktop\dfsvc.exe

Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Source: C:\Users\user\Desktop\dfsvc.exe	Section loaded: mscoree.dll	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Section loaded: version.dll	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Section loaded: vcruntime140_clr0400.dll	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Section loaded: ucrtbase_clr0400.dll	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Section loaded: ucrtbase_clr0400.dll	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Section loaded: cryptsp.dll	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Section loaded: rsaenh.dll	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Section loaded: cryptbase.dll	Jump to behavior

Source: dfsvc.exe

Static PE information: certificate valid

Source: initial sample

Static PE information: Valid certificate with Microsoft Issuer

Source: dfsvc.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR

Source: dfsvc.exe

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source: dfsvc.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:	Binary string: dfsvc.pdbD.^. P._CorExeMainmscoree.dll source: dfsvc.exe
Source:	Binary string: dfsvc.pdb source: dfsvc.exe

Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Source: C:\Users\user\Desktop\dfsvc.exe	Memory allocated: 18F37C40000 memory reserve \| memory write watch			Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Memory allocated: 18F515E0000 memory reserve \| memory write watch			Jump to behavior

Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 922337203685477	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 600000	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599875	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599766	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599657	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599532	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599407	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599282	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599157	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599032	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598922	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598813	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598563	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598438	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598282	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598079	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597947	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597828	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597719	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597609	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597500	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597391	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597281	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597172	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597063	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596938	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596813	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596688	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596578	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596469	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596344	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596235	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596110	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595985	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595860	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595735	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595610	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595453	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595344	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595222	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595094	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594984	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594875	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594766	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594657	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594532	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594407	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594297	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594188	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594063	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 593938	Jump to behavior

Source: C:\Users\user\Desktop\dfsvc.exe	Window / User API: threadDelayed 8419			Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Window / User API: threadDelayed 1421			Jump to behavior

Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep count: 39 > 30	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -35971150943733603s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -600000s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -599875s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6644	Thread sleep count: 8419 > 30	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6644	Thread sleep count: 1421 > 30	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -599766s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -599657s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -599532s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -599407s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -599282s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -599157s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -599032s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -598922s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -598813s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -598563s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -598438s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -598282s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -598079s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -597947s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -597828s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -597719s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -597609s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -597500s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -597391s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -597281s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -597172s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -597063s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -596938s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -596813s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -596688s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -596578s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -596469s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -596344s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -596235s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -596110s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -595985s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -595860s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -595735s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -595610s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -595453s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -595344s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -595222s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -595094s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -594984s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -594875s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -594766s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -594657s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -594532s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -594407s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -594297s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -594188s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -594063s >= -30000s	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe TID: 6648	Thread sleep time: -593938s >= -30000s	Jump to behavior

Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 922337203685477	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 600000	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599875	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599766	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599657	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599532	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599407	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599282	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599157	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 599032	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598922	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598813	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598563	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598438	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598282	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 598079	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597947	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597828	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597719	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597609	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597500	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597391	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597281	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597172	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 597063	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596938	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596813	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596688	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596578	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596469	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596344	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596235	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 596110	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595985	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595860	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595735	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595610	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595453	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595344	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595222	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 595094	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594984	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594875	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594766	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594657	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594532	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594407	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594297	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594188	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 594063	Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Thread delayed: delay time: 593938	Jump to behavior

Source: C:\Users\user\Desktop\dfsvc.exe

Memory allocated: page read and write | page guard

Jump to behavior

Source: C:\Users\user\Desktop\dfsvc.exe	Queries volume information: C:\Users\user\Desktop\dfsvc.exe VolumeInformation			Jump to behavior
Source: C:\Users\user\Desktop\dfsvc.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Deployment\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Deployment.dll VolumeInformation			Jump to behavior

Source: C:\Users\user\Desktop\dfsvc.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid

Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	1 DLL Side-Loading	1 DLL Side-Loading	1 Masquerading	OS Credential Dumping	31 Virtualization/Sandbox Evasion	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	1 Disable or Modify Tools	LSASS Memory	1 Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	31 Virtualization/Sandbox Evasion	Security Account Manager	12 System Information Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Steganography	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	1 DLL Side-Loading	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	Protocol Impersonation	Traffic Duplication	Data Destruction

Behavior Graph

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Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
dfsvc.exe	0%	ReversingLabs

Dropped Files

⊘No Antivirus matches

Unpacked PE Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1541340
Start date and time:	2024-10-24 17:55:21 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 3m 41s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	6
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	dfsvc.exe
Detection:	SUS
Classification:	sus22.winEXE@1/1@0/0
Cookbook Comments:	Found application associated with file extension: .exe

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, WMIADAP.exe, SIHClient.exe, conhost.exe, svchost.exe
Excluded domains from analysis (whitelisted): ocsp.digicert.com, slscr.update.microsoft.com, otelrules.azureedge.net, 7.4.8.4.4.3.1.4.0.0.0.0.0.0.0.0.0.0.0.a.0.0.1.f.1.1.1.0.1.0.a.2.ip6.arpa, ctldl.windowsupdate.com, fe3cr.delivery.mp.microsoft.com
Not all processes where analyzed, report is missing behavior information
VT rate limit hit for: dfsvc.exe

Simulations

Behavior and APIs

Time	Type	Description
11:56:13	API Interceptor	1280662x Sleep call for process: dfsvc.exe modified

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

C:\Users\user\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\dfsvc.exe.log

Download File

Process:	C:\Users\user\Desktop\dfsvc.exe
File Type:	ASCII text, with CRLF line terminators
Category:	dropped
Size (bytes):	752
Entropy (8bit):	5.379271095432949
Encrypted:	false
SSDEEP:	12:Q3La/hPAbDLI4M9tDLI4MWuPXcp151KDLI4MN5I/k1BakvoDLI4MWuPakEOsk7v:ML1XE4qpE4KQ71qE4GIs0E4KD
MD5:	CBC56B59542A4F86288C49E21361FDCE
SHA1:	256A520BB33AC1F9CB671B4737BD2192C30E9332
SHA-256:	A408EDACF122DACCC364501556A9345126DEAB4419D1544246AC12B3014C39D7
SHA-512:	D307B0560E7E2EE8A6EEBC0EA35F6ACE057965ECBE039CFC7599C7AE90B06BC850D8A6E507F9D37DC2531B6F078BB646BF36AAF58EE8C4E0589CF912B03FBDF3
Malicious:	false
Reputation:	low
Preview:	1,"fusion","GAC",0..1,"WinRT","NotApp",1..2,"System.Deployment, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a",0..3,"System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089","C:\Windows\assembly\NativeImages_v4.0.30319_64\System\b187b7f31cee3e87b56c8edca55324e0\System.ni.dll",0..3,"System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a","C:\Windows\assembly\NativeImages_v4.0.30319_64\System.Drawing\567ff6b0de7f9dcd8111001e94ab7cf6\System.Drawing.ni.dll",0..3,"System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089","C:\Windows\assembly\NativeImages_v4.0.30319_64\System.Windows.Forms\2a7fffeef3976b2a6f273db66b1f0107\System.Windows.Forms.ni.dll",0..

Static File Info

General

File type:	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
Entropy (8bit):	6.618100720659971
TrID:	Win32 Executable (generic) Net Framework (10011505/4) 50.01% Win32 Executable (generic) a (10002005/4) 49.97% Generic Win/DOS Executable (2004/3) 0.01% DOS Executable Generic (2002/1) 0.01% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	dfsvc.exe
File size:	18'336 bytes
MD5:	3597d9e93852fddb92e0a0cf0452bb61
SHA1:	d25c62a57ac3000244741bda129f483f2347efa6
SHA256:	6e6cb0729cb902420739148ae23bf1c7959bc8ea2bf6b6277c5c0de45aa77df6
SHA512:	5af245a68516698f0bcb63829f1c3abe429a06e94755ab50a29f51914b39e4719a901d2174550b691d5b0fdf1e23ca921714a2c5b2739925ef902766e4ab10d0
SSDEEP:	384:kNqQPZrpWKvX16WVFeyHRN7kpQtR9zusk0jUNu:k4IZbX1hYuCQP9zuDwUNu
TLSH:	22826CD28BAC5113EC9718B016A5EA837E3C53DB48C6996B31CEE5593F837C1CB21369
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L....:.b.........."...0.............n.... ...@....@.. ....................................`................................

File Icon


Icon Hash:	90cececece8e8eb0

Static PE Info

General

Entrypoint:	0x402e6e
Entrypoint Section:	.text
Digitally signed:	true
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE
DLL Characteristics:	HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Time Stamp:	0x62B63ABF [Fri Jun 24 22:29:19 2022 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	f34d5f2d4577ed6d9ceec516c1f5a744

Authenticode Signature

Signature Valid:	true
Signature Issuer:	CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
Signature Validation Error:	The operation completed successfully
Error Number:	0
Not Before, Not After	02/09/2021 19:32:59 01/09/2022 19:32:59
Subject Chain	CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
Version:	3
Thumbprint MD5:	D15B2B9631F8B37BA8D83A5AE528A8BB
Thumbprint SHA-1:	8740DF4ACB749640AD318E4BE842F72EC651AD80
Thumbprint SHA-256:	2EB421FBB33BBF9C8F6B58C754B0405F40E02CB6328936AAE39DB7A24880EA21
Serial:	33000002528B33AAF895F339DB000000000252

Entrypoint Preview

Instruction
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Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x2e1c	0x4f	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x4000	0xa0c	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x2000	0x27a0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x6000	0xc	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x2ce4	0x1c	.text
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x2000	0x8	.text
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x2008	0x48	.text
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	MD5	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x2000	0xe74	0x1000	1b510bfedb939f08b6dc96ba7e47c02e	False	0.55712890625	data	5.389483992507497	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rsrc	0x4000	0xa0c	0xc00	c1ecdb1eda940036a01100f23ed09cf8	False	0.3424479166666667	data	4.225801393109791	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x6000	0xc	0x200	ef563e389af6842eb23cd90f4dcd24b2	False	0.044921875	data	0.08153941234324169	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country	ZLIB Complexity
RT_VERSION	0x4090	0x3b0	data	English	United States	0.4713983050847458
RT_MANIFEST	0x4450	0x5b5	exported SGML document, ASCII text	English	United States	0.37782340862423

Imports

DLL	Import
mscoree.dll	_CorExeMain

Possible Origin

Language of compilation system	Country where language is spoken	Map
English	United States

Network Behavior

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 24, 2024 17:56:59.291615009 CEST	53	50900	162.159.36.2	192.168.2.4
Oct 24, 2024 17:56:59.927233934 CEST	53	62011	1.1.1.1	192.168.2.4

Statistics

CPU Usage

Click to jump to process

Memory Usage

Click to jump to process

High Level Behavior Distribution

Click to dive into process behavior distribution

System Behavior

Analysis Process: dfsvc.exePID: 6532, Parent PID: 2580

General

Target ID:	0
Start time:	11:56:12
Start date:	24/10/2024
Path:	C:\Users\user\Desktop\dfsvc.exe
Wow64 process (32bit):	false
Commandline:	"C:\Users\user\Desktop\dfsvc.exe"
Imagebase:	0x18f37910000
File size:	18'336 bytes
MD5 hash:	3597D9E93852FDDB92E0A0CF0452BB61
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	low
Has exited:	true

Show Windows behavior

Chronological Activities

Disassembly

⊘No disassembly

Description:	Adversaries may execute their own malicious payloads by side-loading DLLs. Similar to DLL Search Order Hijacking , side-loading involves hijacking which DLL a program loads. But rather than just planting the DLL within the search order of a program then waiting for the victim application to be invoked, adversaries may directly side-load their payloads by planting then invoking a legitimate application that executes their payload(s).
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Metadata, File: File Modification, Image: Image Metadata, Process: OS API Execution, Process: Process Creation, Process: Process Metadata, Scheduled Job: Scheduled Job Metadata, Scheduled Job: Scheduled Job Modification, Service: Service Creation, Service: Service Metadata
Platforms:	Containers, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may modify and/or disable security tools to avoid possible detection of their malware/tools and activities. This may take many forms, such as killing security software processes or services, modifying / deleting Registry keys or configuration files so that tools do not operate properly, or other methods to interfere with security tools scanning or reporting information. Adversaries may also disable updates to prevent the latest security patches from reaching tools on victim systems.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, Driver: Driver Load, Process: Process Creation, Process: Process Termination, Sensor Health: Host Status, Service: Service Metadata, Windows Registry: Windows Registry Key Deletion, Windows Registry: Windows Registry Key Modification
Platforms:	Containers, IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of open application windows. Window listings could convey information about how the system is used.For example, information about application windows could be used identify potential data to collect as well as identifying security tooling ( Security Software Discovery ) to evade.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report dfsvc.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Compliance

System Summary

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

Language, Device and Operating System Detection

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

C:\Users\user\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\dfsvc.exe.log

Static File Info

General

File Icon

Static PE Info

General

Authenticode Signature

Entrypoint Preview

Data Directories

Sections

Resources

Imports

Possible Origin

Network Behavior

UDP Packets

Statistics

CPU Usage

Memory Usage

High Level Behavior Distribution

back

System Behavior

Analysis Process: dfsvc.exePID: 6532, Parent PID: 2580

General

Chronological Activities

Disassembly

Windows Analysis Report
dfsvc.exe