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Windows Analysis Report
winatp-intro-backdoor.exe

Overview

General Information

Sample Name:	winatp-intro-backdoor.exe
Analysis ID:	575603
MD5:	fed6550f6e51492ac5d0fb0050e744e4
SHA1:	5e1c8874b29de480a0513516fb542cad2b049cc3
SHA256:	929cf5c2a2ce25d82699fc1bfe578bbe8abedce0e477a40980016ee32c2c7cbe
Infos:

Detection

Score:	64
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Obfuscated command line found

Uses cmd line tools excessively to alter registry or file data

PE file does not import any functions

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

Antivirus or Machine Learning detection for unpacked file

Sample file is different than original file name gathered from version info

Sigma detected: CurrentVersion Autorun Keys Modification

Sigma detected: Reg Add RUN Key

Uses code obfuscation techniques (call, push, ret)

Uses reg.exe to modify the Windows registry

Sample execution stops while process was sleeping (likely an evasion)

Sigma detected: Direct Autorun Keys Modification

Creates a process in suspended mode (likely to inject code)

Sigma detected: Autorun Keys Modification

Classification

Process Tree

System is start

winatp-intro-backdoor.exe (PID: 7740 cmdline: "C:\Users\user\Desktop\winatp-intro-backdoor.exe" MD5: FED6550F6E51492AC5D0FB0050E744E4)

conhost.exe (PID: 3640 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: C5E9B1D1103EDCEA2E408E9497A5A88F)

cmd.exe (PID: 384 cmdline: "C:\Windows\System32\cmd.exe" /c REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj MD5: 9D59442313565C2E0860B88BF32B2277)

conhost.exe (PID: 6024 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: C5E9B1D1103EDCEA2E408E9497A5A88F)

reg.exe (PID: 7412 cmdline: REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj MD5: 05CF3CE225B05B669E3118092F4C8EAB)

cmd.exe (PID: 1964 cmdline: "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe MD5: 9D59442313565C2E0860B88BF32B2277)

conhost.exe (PID: 3120 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: C5E9B1D1103EDCEA2E408E9497A5A88F)

reg.exe (PID: 6940 cmdline: REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d %userprofile%\desktop\WinATP-Intro-Backdoor.exe MD5: 05CF3CE225B05B669E3118092F4C8EAB)

cleanup

Sigma Signatures

There are no malicious signatures, click here to show all signatures.

Source: Registry Key set

Author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split): Data: Details: %userprofile%\desktop\WinATP-Intro-Backdoor.exe, EventID: 13, EventType: SetValue, Image: C:\Windows\System32\reg.exe, ProcessId: 6940, TargetObject: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce\Troj

Source: Process started

Author: Florian Roth: Data: Command: "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe, CommandLine: "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe, CommandLine|base64offset|contains: , Image: C:\Windows\System32\cmd.exe, NewProcessName: C:\Windows\System32\cmd.exe, OriginalFileName: C:\Windows\System32\cmd.exe, ParentCommandLine: "C:\Users\user\Desktop\winatp-intro-backdoor.exe" , ParentImage: C:\Users\user\Desktop\winatp-intro-backdoor.exe, ParentProcessId: 7740, ProcessCommandLine: "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe, ProcessId: 1964

Source: Process started

Author: Victor Sergeev, Daniil Yugoslavskiy, oscd.community: Data: Command: REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d %userprofile%\desktop\WinATP-Intro-Backdoor.exe, CommandLine: REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d %userprofile%\desktop\WinATP-Intro-Backdoor.exe, CommandLine|base64offset|contains: DA, Image: C:\Windows\System32\reg.exe, NewProcessName: C:\Windows\System32\reg.exe, OriginalFileName: C:\Windows\System32\reg.exe, ParentCommandLine: "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe, ParentImage: C:\Windows\System32\cmd.exe, ParentProcessId: 1964, ProcessCommandLine: REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d %userprofile%\desktop\WinATP-Intro-Backdoor.exe, ProcessId: 6940

Source: Registry Key set

Author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton: Data: Details: %userprofile%\desktop\WinATP-Intro-Backdoor.exe, EventID: 13, EventType: SetValue, Image: C:\Windows\System32\reg.exe, ProcessId: 6940, TargetObject: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce\Troj

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: winatp-intro-backdoor.exe

Avira: detected

Multi AV Scanner detection for submitted file

Source: winatp-intro-backdoor.exe	Virustotal: Detection: 58%	Perma Link
Source: winatp-intro-backdoor.exe	Metadefender: Detection: 15%	Perma Link
Source: winatp-intro-backdoor.exe	ReversingLabs: Detection: 62%

Source: 0.0.winatp-intro-backdoor.exe.1a642b80000.0.unpack	Avira: Label: TR/Agent.kkjis
Source: 0.2.winatp-intro-backdoor.exe.1a642b80000.0.unpack	Avira: Label: TR/Agent.kkjis

Source: winatp-intro-backdoor.exe

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

Source:

Binary string: C:\dev\Repos\DIY\WinATPIntroBackdoorRS4\obj\Debug\Troj.pdb source: winatp-intro-backdoor.exe

Source: winatp-intro-backdoor.exe

Static PE information: No import functions for PE file found

Source: winatp-intro-backdoor.exe	Binary or memory string: OriginalFilename vs winatp-intro-backdoor.exe
Source: winatp-intro-backdoor.exe, 00000000.00000002.2659643964.000001A642D7C000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: OriginalFilenameclr.dllT vs winatp-intro-backdoor.exe
Source: winatp-intro-backdoor.exe, 00000000.00000002.2661461067.000001A6448A1000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: OriginalFilenameMsSense.exe.muij% vs winatp-intro-backdoor.exe
Source: winatp-intro-backdoor.exe, 00000000.00000002.2661461067.000001A6448A1000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: OriginalFilename vs winatp-intro-backdoor.exe
Source: winatp-intro-backdoor.exe, 00000000.00000002.2661461067.000001A6448A1000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: ,\\StringFileInfo\\040904B0\\OriginalFilename vs winatp-intro-backdoor.exe
Source: winatp-intro-backdoor.exe, 00000000.00000000.1634626306.000001A642B82000.00000002.00000001.01000000.00000003.sdmp	Binary or memory string: OriginalFilenameTroj.exe4 vs winatp-intro-backdoor.exe
Source: winatp-intro-backdoor.exe	Binary or memory string: OriginalFilenameTroj.exe4 vs winatp-intro-backdoor.exe

Source: C:\Windows\System32\cmd.exe

Process created: C:\Windows\System32\reg.exe REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj

Source: winatp-intro-backdoor.exe	Virustotal: Detection: 58%
Source: winatp-intro-backdoor.exe	Metadefender: Detection: 15%
Source: winatp-intro-backdoor.exe	ReversingLabs: Detection: 62%

Source: winatp-intro-backdoor.exe

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

Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe

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

Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe

Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_64\mscorlib\ec23d1294499b4ffba61f212cb1217cd\mscorlib.ni.dll

Source: unknown	Process created: C:\Users\user\Desktop\winatp-intro-backdoor.exe "C:\Users\user\Desktop\winatp-intro-backdoor.exe"
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\reg.exe REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\reg.exe REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d %userprofile%\desktop\WinATP-Intro-Backdoor.exe
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\reg.exe REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\reg.exe REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d %userprofile%\desktop\WinATP-Intro-Backdoor.exe

Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\InProcServer32

Source: C:\Windows\System32\conhost.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6024:120:WilError_02
Source: C:\Windows\System32\conhost.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:3640:120:WilError_02
Source: C:\Windows\System32\conhost.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6024:304:WilStaging_02
Source: C:\Windows\System32\conhost.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:3120:304:WilStaging_02
Source: C:\Windows\System32\conhost.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:3640:304:WilStaging_02
Source: C:\Windows\System32\conhost.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:3120:120:WilError_02

Source: winatp-intro-backdoor.exe	String found in binary or memory: $688f5b1e-caa6-4abe-adde-a45c44aa7bf0
Source: winatp-intro-backdoor.exe	String found in binary or memory: $688f5b1e-caa6-4abe-adde-a45c44aa7bf0

Source: classification engine

Classification label: mal64.winEXE@12/1@0/0

Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe

File read: C:\Users\user\Desktop\desktop.ini

Jump to behavior

Source: Window Recorder

Window detected: More than 3 window changes detected

Source: winatp-intro-backdoor.exe

Static PE information: Image base 0x140000000 > 0x60000000

Source: winatp-intro-backdoor.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR

Source: winatp-intro-backdoor.exe

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

Source: winatp-intro-backdoor.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:

Binary string: C:\dev\Repos\DIY\WinATPIntroBackdoorRS4\obj\Debug\Troj.pdb source: winatp-intro-backdoor.exe

Data Obfuscation

Obfuscated command line found

Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe

Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Code function: 0_2_00007FFCE6761D9D push ebx; ret
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Code function: 0_2_00007FFCE6761CDD pushad ; iretd

Persistence and Installation Behavior

Uses cmd line tools excessively to alter registry or file data

Source: C:\Windows\System32\cmd.exe	Process created: reg.exe
Source: C:\Windows\System32\cmd.exe	Process created: reg.exe
Source: C:\Windows\System32\cmd.exe	Process created: reg.exe
Source: C:\Windows\System32\cmd.exe	Process created: reg.exe

Source: C:\Windows\System32\reg.exe	Registry value created or modified: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce Troj	Jump to behavior
Source: C:\Windows\System32\reg.exe	Registry value created or modified: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce Troj	Jump to behavior
Source: C:\Windows\System32\reg.exe	Registry value created or modified: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce Troj	Jump to behavior
Source: C:\Windows\System32\reg.exe	Registry value created or modified: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce Troj	Jump to behavior

Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process information set: NOOPENFILEERRORBOX

Source: C:\Windows\System32\conhost.exe	Last function: Thread delayed
Source: C:\Windows\System32\conhost.exe	Last function: Thread delayed
Source: C:\Windows\System32\conhost.exe	Last function: Thread delayed
Source: C:\Windows\System32\conhost.exe	Last function: Thread delayed

Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe

Memory allocated: page read and write | page guard

Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj
Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe	Process created: C:\Windows\System32\cmd.exe "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\reg.exe REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj
Source: C:\Windows\System32\cmd.exe	Process created: C:\Windows\System32\reg.exe REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d %userprofile%\desktop\WinATP-Intro-Backdoor.exe

Source: C:\Users\user\Desktop\winatp-intro-backdoor.exe

Queries volume information: C:\Users\user\Desktop\winatp-intro-backdoor.exe VolumeInformation

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	22 Command and Scripting Interpreter	1 Registry Run Keys / Startup Folder	11 Process Injection	1 Modify Registry	OS Credential Dumping	1 File and Directory Discovery	Remote Services	Data from Local System	Exfiltration Over Other Network Medium	Data Obfuscation	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	1 Registry Run Keys / Startup Folder	1 Disable or Modify Tools	LSASS Memory	11 System Information Discovery	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	Junk Data	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	1 Software Packing	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Steganography	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data
Local Accounts	At (Windows)	Logon Script (Mac)	Logon Script (Mac)	11 Process Injection	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	Scheduled Transfer	Protocol Impersonation	SIM Card Swap		Carrier Billing Fraud
Cloud Accounts	Cron	Network Logon Script	Network Logon Script	1 Deobfuscate/Decode Files or Information	LSA Secrets	Remote System Discovery	SSH	Keylogging	Data Transfer Size Limits	Fallback Channels	Manipulate Device Communication		Manipulate App Store Rankings or Ratings
Replication Through Removable Media	Launchd	Rc.common	Rc.common	1 Obfuscated Files or Information	Cached Domain Credentials	System Owner/User Discovery	VNC	GUI Input Capture	Exfiltration Over C2 Channel	Multiband Communication	Jamming or Denial of Service		Abuse Accessibility Features

Behavior Graph

Hide Legend

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

Source	Detection	Scanner	Label	Link
winatp-intro-backdoor.exe	58%	Virustotal		Browse
winatp-intro-backdoor.exe	16%	Metadefender		Browse
winatp-intro-backdoor.exe	63%	ReversingLabs	ByteCode-MSIL.Trojan.Ursu
winatp-intro-backdoor.exe	100%	Avira	TR/Agent.kkjis

Dropped Files

⊘No Antivirus matches

Unpacked PE Files

Source	Detection	Scanner	Label	Link	Download
0.0.winatp-intro-backdoor.exe.1a642b80000.0.unpack	100%	Avira	TR/Agent.kkjis		Download File
0.2.winatp-intro-backdoor.exe.1a642b80000.0.unpack	100%	Avira	TR/Agent.kkjis		Download File

Joe Sandbox Version:	34.0.0 Boulder Opal
Analysis ID:	575603
Start date:	21.02.2022
Start time:	10:44:27
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 4m 6s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	winatp-intro-backdoor.exe
Cookbook file name:	defaultwindowsinteractivecookbook.jbs
Number of analysed new started processes analysed:	20
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:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	MAL
Classification:	mal64.winEXE@12/1@0/0
EGA Information:	Failed
HDC Information:	Successful, ratio: 2.6% (good quality ratio 1.3%) Quality average: 50% Quality standard deviation: 50%
HCA Information:	Successful, ratio: 94% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Adjust boot time Enable AMSI Found application associated with file extension: .exe

Warnings

Exclude process from analysis (whitelisted): BackgroundTransferHost.exe, WMIADAP.exe, SIHClient.exe, backgroundTaskHost.exe, svchost.exe
Excluded domains from analysis (whitelisted): ris.api.iris.microsoft.com, client.wns.windows.com, fs.microsoft.com, login.live.com, slscr.update.microsoft.com, ctldl.windowsupdate.com, displaycatalog.mp.microsoft.com, img-prod-cms-rt-microsoft-com.akamaized.net, nexusrules.officeapps.live.com, arc.msn.com
Execution Graph export aborted for target winatp-intro-backdoor.exe, PID 7740 because it is empty
Not all processes where analyzed, report is missing behavior information
Report size getting too big, too many NtOpenKeyEx calls found.
Report size getting too big, too many NtQueryValueKey calls found.

Process:	C:\Users\user\Desktop\winatp-intro-backdoor.exe
File Type:	ASCII text, with CRLF, LF line terminators
Category:	dropped
Size (bytes):	54
Entropy (8bit):	4.112831308403153
Encrypted:	false
SSDEEP:	3:YlOsGUw2/A6PEHW:YUUwuA6M2
MD5:	C540DF743DAC65AA096E87CEE8C58DD2
SHA1:	13463F6E4027530A39C12DE7EA377B421E55BF38
SHA-256:	B6C2963D17F8A870C0C2615A2734EF6A8EA1ACC4A989C123CE8F5E18C4330206
SHA-512:	5D7A8362299DC575E6EF503F51D334D4BB507E521FBF7B96351B10424DE4DDB0F6C60E485B35DB64ECFEB597660142C9B9D279485C27A603E434E777BE3A9BBB
Malicious:	false
Reputation:	low
Preview:	Attack scenario completed .Press any key to close.....

Static File Info

General

File type:	PE32+ executable (console) x86-64 Mono/.Net assembly, for MS Windows
Entropy (8bit):	4.639781655267923
TrID:	Win64 Executable Console Net Framework (206006/5) 48.58% Win64 Executable Console (202006/5) 47.64% Win64 Executable (generic) (12005/4) 2.83% Generic Win/DOS Executable (2004/3) 0.47% DOS Executable Generic (2002/1) 0.47%
File name:	winatp-intro-backdoor.exe
File size:	7168
MD5:	fed6550f6e51492ac5d0fb0050e744e4
SHA1:	5e1c8874b29de480a0513516fb542cad2b049cc3
SHA256:	929cf5c2a2ce25d82699fc1bfe578bbe8abedce0e477a40980016ee32c2c7cbe
SHA512:	e488ca7017e8bd3c4f94c6f2fe376d0c31c8347401cd6361605f1670358ed0f8daf2e4de1c7fb2de84f6b5d63b5af676a5aca26cdf883712a5e24feb1d7dd255
SSDEEP:	96:TvL6oH3cs/1M4xLjzkV3JKi6QN+Tf8jJaGLyo3sqJnAhKJqc7zNt:TTH3cEdHwf6QNYeauzAhKrd
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..d...?..Z.........."...0.................. .....@..... .......................`............`...@......@............... .....

File Icon


Icon Hash:	00828e8e8686b000

Static PE Info

General

Entrypoint:	0x140000000
Entrypoint Section:
Digitally signed:	false
Imagebase:	0x140000000
Subsystem:	windows cui
Image File Characteristics:	EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE
DLL Characteristics:	NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT, HIGH_ENTROPY_VA
Time Stamp:	0x5A97EF3F [Thu Mar 1 12:17:03 2018 UTC]
TLS Callbacks:
CLR (.Net) Version:	v4.0.30319
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:

Entrypoint Preview

Instruction
dec ebp
pop edx
nop
add byte ptr [ebx], al
add byte ptr [eax], al
add byte ptr [eax+eax], al
add byte ptr [eax], al

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x4000	0x4cc	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DEBUG	0x3224	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	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x2000	0x48	.text
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x2000	0x135c	0x1400	False	0.5052734375	data	4.97394821079	IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
.rsrc	0x4000	0x4cc	0x600	False	0.374348958333	data	3.70353186302	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_VERSION	0x4090	0x23c	data
RT_MANIFEST	0x42dc	0x1ea	XML 1.0 document, UTF-8 Unicode (with BOM) text, with CRLF line terminators

Version Infos

Description	Data
Translation	0x0000 0x04b0
LegalCopyright
Assembly Version	1.0.0.0
InternalName	Troj.exe
FileVersion	1.0.0.0
ProductVersion	1.0.0.0
FileDescription
OriginalFilename	Troj.exe

• winatp-intro-backdoor.exe
• conhost.exe
• cmd.exe
• conhost.exe
• cmd.exe
• conhost.exe
• reg.exe
• reg.exe

Click to jump to process

Target ID:	0
Start time:	10:45:01
Start date:	21/02/2022
Path:	C:\Users\user\Desktop\winatp-intro-backdoor.exe
Wow64 process (32bit):	false
Commandline:	"C:\Users\user\Desktop\winatp-intro-backdoor.exe"
Imagebase:	0x1a642b80000
File size:	7168 bytes
MD5 hash:	FED6550F6E51492AC5D0FB0050E744E4
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	.Net C# or VB.NET
Reputation:	low

Show Windows behavior

Target ID:	1
Start time:	10:45:01
Start date:	21/02/2022
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff6a8820000
File size:	885760 bytes
MD5 hash:	C5E9B1D1103EDCEA2E408E9497A5A88F
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	moderate

Show Windows behavior

Target ID:	5
Start time:	10:45:05
Start date:	21/02/2022
Path:	C:\Windows\System32\cmd.exe
Wow64 process (32bit):	false
Commandline:	"C:\Windows\System32\cmd.exe" /c REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj
Imagebase:	0x7ff70ecc0000
File size:	280064 bytes
MD5 hash:	9D59442313565C2E0860B88BF32B2277
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	moderate

Show Windows behavior

Target ID:	6
Start time:	10:45:05
Start date:	21/02/2022
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff6a8820000
File size:	885760 bytes
MD5 hash:	C5E9B1D1103EDCEA2E408E9497A5A88F
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	moderate

Show Windows behavior

Target ID:	7
Start time:	10:45:05
Start date:	21/02/2022
Path:	C:\Windows\System32\cmd.exe
Wow64 process (32bit):	false
Commandline:	"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d ^%userprofile^%\desktop\WinATP-Intro-Backdoor.exe
Imagebase:	0x7ff70ecc0000
File size:	280064 bytes
MD5 hash:	9D59442313565C2E0860B88BF32B2277
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	moderate

Show Windows behavior

Target ID:	8
Start time:	10:45:05
Start date:	21/02/2022
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff6a8820000
File size:	885760 bytes
MD5 hash:	C5E9B1D1103EDCEA2E408E9497A5A88F
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	moderate

Show Windows behavior

Target ID:	9
Start time:	10:45:06
Start date:	21/02/2022
Path:	C:\Windows\System32\reg.exe
Wow64 process (32bit):	false
Commandline:	REG DELETE HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj
Imagebase:	0x7ff614680000
File size:	74240 bytes
MD5 hash:	05CF3CE225B05B669E3118092F4C8EAB
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	low

Show Windows behavior

Target ID:	10
Start time:	10:45:06
Start date:	21/02/2022
Path:	C:\Windows\System32\reg.exe
Wow64 process (32bit):	false
Commandline:	REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /f /v Troj /t REG_EXPAND_SZ /d %userprofile%\desktop\WinATP-Intro-Backdoor.exe
Imagebase:	0x7ff614680000
File size:	74240 bytes
MD5 hash:	05CF3CE225B05B669E3118092F4C8EAB
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	low

Show Windows behavior

Description:	Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of interacting with computer systems and are a common feature across many different platforms. Most systems come with some built-in command-line interface and scripting capabilities, for example, macOS and Linux distributions include some flavor of Unix Shell while Windows installations include the Windows Command Shell and PowerShell .
Tactics:	Execution
Data Sources:	PowerShell logs, Process command-line parameters, Process monitoring, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may achieve persistence by adding a program to a startup folder or referencing it with a Registry run key. Adding an entry to the "run keys" in the Registry or startup folder will cause the program referenced to be executed when a user logs in. These programs will be executed under the context of the user and will have the account's associated permissions level.
Tactics:	Persistence, Privilege Escalation
Data Sources:	File monitoring, Windows Registry
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	API monitoring, DLL monitoring, File monitoring, Named Pipes, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may interact with the Windows Registry to hide configuration information within Registry keys, remove information as part of cleaning up, or as part of other techniques to aid in persistence and execution.
Tactics:	Defense Evasion
Data Sources:	File monitoring, Process command-line parameters, Process monitoring, Windows Registry, Windows event logs
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may disable security tools to avoid possible detection of their tools and activities. This can take the form of killing security software or event logging processes, deleting Registry keys so that tools do not start at run time, or other methods to interfere with security tools scanning or reporting information.
Tactics:	Defense Evasion
Data Sources:	File monitoring, Process command-line parameters, Services, Windows Registry
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may perform software packing or virtual machine software protection to conceal their code. Software packing is a method of compressing or encrypting an executable. Packing an executable changes the file signature in an attempt to avoid signature-based detection. Most decompression techniques decompress the executable code in memory. Virtual machine software protection translates an executable's original code into a special format that only a special virtual machine can run. A virtual machine is then called to run this code.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata
Platforms:	macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use Obfuscated Files or Information to hide artifacts of an intrusion from analysis. They may require separate mechanisms to decode or deobfuscate that information depending on how they intend to use it. Methods for doing that include built-in functionality of malware or by using utilities present on the system.
Tactics:	Defense Evasion
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, Email gateway, Environment variable, File monitoring, Malware reverse engineering, Network intrusion detection system, Network protocol analysis, Process command-line parameters, Process monitoring, Process use of network, SSL/TLS inspection, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory 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:	File monitoring, Process command-line parameters, Process monitoring
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:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report winatp-intro-backdoor.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

System Summary

Joe Sandbox Signatures

AV Detection

Compliance

System Summary

Data Obfuscation

Persistence and Installation Behavior

Boot Survival

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

HIPS / PFW / Operating System Protection Evasion

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

\Device\ConDrv

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Data Directories

Sections

Resources

Version Infos

Network Behavior

Statistics

Behavior

System Behavior

Analysis Process: winatp-intro-backdoor.exePID: 7740, Parent PID: 628

General

File Activities

File Created

File Written

File Read

Analysis Process: conhost.exePID: 3640, Parent PID: 7740

General

File Activities

File Read

Analysis Process: cmd.exePID: 384, Parent PID: 7740

Windows Analysis Report
winatp-intro-backdoor.exe