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Windows Analysis Report
1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe

Overview

General Information

Sample name:	1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe
Analysis ID:	1525933
MD5:	c5a7a5eb2ce991a63285079c2edd4756
SHA1:	e9ccdb0725ff52be8a95829aec3adb712896e665
SHA256:	6fe8d5c41a41255c157055ce84de6edfa25a518c0224cd29eac442501bc6d482
Tags:	base64-decodedexeuser-abuse_ch
Infos:

Errors No process behavior to analyse as no analysis process or sample was found Corrupt sample or wrongly selected analyzer. Details: The image file %1 is valid, but is for a machine type other than the current machine.

Detection

Remcos

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

Signatures

Malicious sample detected (through community Yara rule)

Yara detected Remcos RAT

Yara detected UAC Bypass using CMSTP

Yara detected Keylogger Generic

Yara signature match

Classification

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Remcos, RemcosRAT	Remcos (acronym of Remote Control & Surveillance Software) is a commercial Remote Access Tool to remotely control computers.Remcos is advertised as legitimate software which can be used for surveillance and penetration testing purposes, but has been used in numerous hacking campaigns.Remcos, once installed, opens a backdoor on the computer, granting full access to the remote user.Remcos is developed by the cybersecurity company BreakingSecurity.	APT33 The Gorgon Group UAC-0050	http://malware-traffic-analysis.net/2017/12/22/index.html https://0xmrmagnezi.github.io/malware%20analysis/RemcosRAT/ https://asec.ahnlab.com/en/32376/ https://asec.ahnlab.com/ko/25837/ https://asec.ahnlab.com/ko/32101/	https://malpedia.caad.fkie.fraunhofer.de/details/win.remcos

Malware Configuration

⊘No configs have been found

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe	JoeSecurity_Keylogger_Generic	Yara detected Keylogger Generic	Joe Security
1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe	JoeSecurity_Remcos	Yara detected Remcos RAT	Joe Security
1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe	JoeSecurity_UACBypassusingCMSTP	Yara detected UAC Bypass using CMSTP	Joe Security
1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe	Windows_Trojan_Remcos_b296e965	unknown	unknown	0x71a7b:$a1: Remcos restarted by watchdog! 0x71ff3:$a3: %02i:%02i:%02i:%03i
1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe	REMCOS_RAT_variants	unknown	unknown	0x6b817:$str_a1: C:\Windows\System32\cmd.exe 0x6b793:$str_a3: /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWOR 0x6b793:$str_a4: /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWOR 0x6bc93:$str_a5: \AppData\Local\Google\Chrome\User Data\Default\Login Data 0x6c4c3:$str_b1: CreateObject("Scripting.FileSystemObject").DeleteFile(Wscript.ScriptFullName) 0x6b887:$str_b2: Executing file: 0x6c919:$str_b3: GetDirectListeningPort 0x6c2b3:$str_b4: Set fso = CreateObject("Scripting.FileSystemObject") 0x6c433:$str_b7: \update.vbs 0x6b8af:$str_b9: Downloaded file: 0x6b89b:$str_b10: Downloading file: 0x6b93f:$str_b12: Failed to upload file: 0x6c8e1:$str_b13: StartForward 0x6c901:$str_b14: StopForward 0x6c38b:$str_b15: fso.DeleteFile " 0x6c31f:$str_b16: On Error Resume Next 0x6c3bb:$str_b17: fso.DeleteFolder " 0x6b92f:$str_b18: Uploaded file: 0x6b8ef:$str_b19: Unable to delete: 0x6c353:$str_b20: while fso.FileExists(" 0x6bdcc:$str_c0: [Firefox StoredLogins not found]
1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM	Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)	ditekSHen	0x6b703:$guid1: {3E5FC7F9-9A51-4367-9063-A120244FBEC7} 0x6b697:$s1: CoGetObject 0x6b6ab:$s1: CoGetObject 0x6b6c7:$s1: CoGetObject 0x75a2c:$s1: CoGetObject 0x6b657:$s2: Elevation:Administrator!new:
Click to see the 1 entries

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

Yara detected Remcos RAT

Source: Yara match

File source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE

Source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe

Binary or memory string: -----BEGIN PUBLIC KEY-----

memstr_108bcb53-2

Exploits

Yara detected UAC Bypass using CMSTP

Source: Yara match

File source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE

Source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe

String found in binary or memory: http://geoplugin.net/json.gp/C

Source: Yara match

File source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE

E-Banking Fraud

Yara detected Remcos RAT

Source: Yara match

File source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE

System Summary

Malicious sample detected (through community Yara rule)

Source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE	Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE	Matched rule: REMCOS_RAT_variants Author: unknown
Source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE	Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen

Source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE	Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE	Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE	Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

Source: classification engine

Classification label: mal64.troj.expl.winEXE@0/0@0/0

Stealing of Sensitive Information

Yara detected Remcos RAT

Source: Yara match

File source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE

Remote Access Functionality

Yara detected Remcos RAT

Source: Yara match

File source: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe, type: SAMPLE

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	Path Interception	Path Interception	Direct Volume Access	OS Credential Dumping	1 System Information Discovery	Remote Services	1 Archive Collected Data	Data Obfuscation	Exfiltration Over Other Network Medium	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
1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe	3%	ReversingLabs

Source	Detection	Scanner	Label	Link
http://geoplugin.net/json.gp/C	0%	URL Reputation	safe

Name	Source	Malicious	Antivirus Detection	Reputation
http://geoplugin.net/json.gp/C	1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe	false	URL Reputation: safe	unknown

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1525933
Start date and time:	2024-10-04 16:42:16 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 2m 26s
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:	1
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:	1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe
Detection:	MAL
Classification:	mal64.troj.expl.winEXE@0/0@0/0
Cookbook Comments:	Found application associated with file extension: .exe Unable to launch sample, stop analysis

Errors

No process behavior to analyse as no analysis process or sample was found
Corrupt sample or wrongly selected analyzer. Details: The image file %1 is valid, but is for a machine type other than the current machine.

Warnings

Exclude process from analysis (whitelisted): dllhost.exe
VT rate limit hit for: 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe

File type:	MS-DOS executable
Entropy (8bit):	6.67794944032804
TrID:	Generic Win/DOS Executable (2004/3) 49.94% DOS Executable Generic (2002/1) 49.89% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.17%
File name:	1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe
File size:	525'261 bytes
MD5:	c5a7a5eb2ce991a63285079c2edd4756
SHA1:	e9ccdb0725ff52be8a95829aec3adb712896e665
SHA256:	6fe8d5c41a41255c157055ce84de6edfa25a518c0224cd29eac442501bc6d482
SHA512:	6790afa23cb9c2c8441a10d2c84f197fe62120c112c213898e6f7cca1d81ddc3b6f4cf790c0f6dcfc1fd236948b9abbb9ba97a5cce3b8798330007c6e635435f
SSDEEP:	12288:1CYR/tGm3Wh/MnWXCVpPKt1udWhxyp73:B/Em3Wh/MnLVpPKtiWhk
TLSH:	2AB47C11A692C071E8F71E300E3AEA72FAB6BC5015214C7B77DD0CBABD715407A25EE6
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........{.-H..~H..~H..C.:...'~[..~..%C.:....~..$~V..C.:.AbR~I..~...C.:.J..~.D..R..C.:..D..r..~.D..j..~AbE~Q..C.:.H..~v..~.D..,..~.D)~I

File Icon


Icon Hash:	90cececece8e8eb0

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

Description:	An adversary may compress and/or encrypt data that is collected prior to exfiltration. Compressing the data can help to obfuscate the collected data and minimize the amount of data sent over the network. Encryption can be used to hide information that is being exfiltrated from detection or make exfiltration less conspicuous upon inspection by a defender.
Tactics:	Collection
Data Sources:	Command: Command Execution, File: File Creation, Process: Process Creation, Script: Script Execution
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Windows Analysis Report 1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe

Overview

General Information

Detection

Signatures

Classification

Malware Threat Intel

Malware Configuration

Yara Signatures

Initial Sample

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Cryptography

Exploits

Networking

Key, Mouse, Clipboard, Microphone and Screen Capturing

E-Banking Fraud

System Summary

Stealing of Sensitive Information

Remote Access Functionality

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

URLs from Memory and Binaries

World Map of Contacted IPs

General Information

Errors

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Network Behavior

Statistics

System Behavior

Disassembly

Windows Analysis Report
1728051009f4443008c44185dd0681126f8bf5d6dc61953195b58b40df90184e01763a035f953.dat-decoded.exe