MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 725827cfa16ee9aa789f4cb0a7086dd4d6a5ab381461fa8ea0c95aac5a24b57b. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



RemcosRAT


Vendor detections: 17


Intelligence 17 IOCs YARA 6 File information Comments

SHA256 hash: 725827cfa16ee9aa789f4cb0a7086dd4d6a5ab381461fa8ea0c95aac5a24b57b
SHA3-384 hash: 1eec2e478d65d28596d25d246bce7fa597d6bcbc29fced3542d4127e494b8c3e6d4505785c32e6bd71cb297eda79bc5b
SHA1 hash: 69f18d725d693f7219b4701f2c3d334841c55179
MD5 hash: f328e536916a2df28175ab0f152f8ad0
humanhash: foxtrot-august-triple-dakota
File name:f328e536916a2df28175ab0f152f8ad0N.exe
Download: download sample
Signature RemcosRAT
File size:141'632 bytes
First seen:2024-07-22 02:34:37 UTC
Last seen:2024-07-22 11:04:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'633 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHc:xP6/M+WLckOBhVmIl
Threatray 321 similar samples on MalwareBazaar
TLSH T177D302007617D3A2E9D22A3B4518059953B6F3007667AB2F388C326DCE573D77B61AEC
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter nickkuechel
Tags:exe remcos RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
381
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
Encryption Generic Infostealer Network Stealth Trojan Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file
Setting a keyboard event handler
Connection attempt to an infection source
DNS request
Connection attempt
Enabling the 'hidden' option for recently created files
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Query of malicious DNS domain
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1477897 Sample: JH1uPRWzzE.exe Startdate: 22/07/2024 Architecture: WINDOWS Score: 100 34 systemcontrol2.ddns.net 2->34 36 systemcontrol.ddns.net 2->36 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Found malware configuration 2->54 58 10 other signatures 2->58 8 JH1uPRWzzE.exe 1 6 2->8         started        12 wn2ra4ohzdr.exe 2 2->12         started        14 wn2ra4ohzdr.exe 2 2->14         started        signatures3 56 Uses dynamic DNS services 36->56 process4 file5 30 C:\Users\user\AppData\...\wn2ra4ohzdr.exe, PE32 8->30 dropped 32 C:\Users\user\AppData\...\JH1uPRWzzE.exe.log, ASCII 8->32 dropped 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->60 16 wn2ra4ohzdr.exe 3 8->16         started        20 wn2ra4ohzdr.exe 12->20         started        22 wn2ra4ohzdr.exe 14->22         started        signatures6 process7 file8 28 C:\Users\user\AppData\...\wn2ra4ohzdr.exe.log, ASCII 16->28 dropped 40 Antivirus detection for dropped file 16->40 42 Detected Remcos RAT 16->42 44 Machine Learning detection for dropped file 16->44 48 7 other signatures 16->48 24 wn2ra4ohzdr.exe 1 2 16->24         started        46 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 20->46 signatures9 process10 dnsIp11 38 systemcontrol2.ddns.net 216.218.135.118, 45000, 49699, 49700 HURRICANEUS United States 24->38 62 Installs a global keyboard hook 24->62 signatures12
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2024-07-18 19:20:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
34 of 38 (89.47%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:host persistence rat
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
systemcontrol.ddns.net:45000
systemcontrol2.ddns.net:45000
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
3826dd725122276cd6aece6d938d2d525ced4e0021caa07665cfbd6024a1b713
MD5 hash:
90334361aef90d763ba035b55880b5e9
SHA1 hash:
3002989a69d4e28aae17d2dc035d6befccde18b7
Detections:
Remcos win_remcos_auto win_remcos_g0 Remcos malware_windows_remcos_rat INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
SH256 hash:
ad34f363932810be2e7d72cd293bde39ac8cbc5e36b5df0550ecbdfe43fbc80e
MD5 hash:
ddf02c79c0cd4332e892eee1d192f416
SHA1 hash:
b7c6738a1734ff038bf8839bbbd325a15e222dc5
SH256 hash:
725827cfa16ee9aa789f4cb0a7086dd4d6a5ab381461fa8ea0c95aac5a24b57b
MD5 hash:
f328e536916a2df28175ab0f152f8ad0
SHA1 hash:
69f18d725d693f7219b4701f2c3d334841c55179
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:BAZT_B5_NOCEXInvalidStream
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments