MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7ff3db3d1b8507adbfa83a011bf05280c1f885666c5205f75e6a014b55a14a4. 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


DCRat


Vendor detections: 15


Intelligence 15 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b7ff3db3d1b8507adbfa83a011bf05280c1f885666c5205f75e6a014b55a14a4
SHA3-384 hash: 4ab505b5b570082b730aa9122684a10802226d575adcd4e908651cc71a63608c6cb336c06d557a52054d578d28a92e8e
SHA1 hash: 9cbb2f00a50eddc5ac879122dfd40878982152e6
MD5 hash: 537b0814b2b50fdcba27bef7050b78ac
humanhash: maryland-maine-bakerloo-leopard
File name:537b0814b2b50fdcba27bef7050b78ac.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:847'872 bytes
First seen:2024-06-24 17:30:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:PFyKN/60l2og5Pw7aQhVOtFfzULGOOwaCrd6UOzVPa+:tdN//g5Pw73VCzULGOOyd6UOzw+
Threatray 367 similar samples on MalwareBazaar
TLSH T18905E6027E44CA11F0091233D2EF458887B4AD516AA6E32B7DFA37BE55523A77C0D9CB
TrID 47.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
20.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.4% (.SCR) Windows screen saver (13097/50/3)
6.8% (.EXE) Win64 Executable (generic) (10523/12/4)
4.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://a0997452.xsph.ru/L1nc0In.php

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://a0997452.xsph.ru/L1nc0In.php https://threatfox.abuse.ch/ioc/1288481/

Intelligence

File Origin
# of uploads :
1
# of downloads :
467
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
dcrat
Create hunting rule
ID:
1
File name:
b7ff3db3d1b8507adbfa83a011bf05280c1f885666c5205f75e6a014b55a14a4.exe
Verdict:
Malicious activity
Analysis date:
2024-06-24 17:30:47 UTC
Tags:
rat dcrat remote darkcrystal
Link:
https://app.any.run/tasks/db642c6a-8bce-41f6-82f3-aeb5d2f76f6c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilmamut-9950860-0
Create hunting rule

Win.Packed.Uztuby-9963900-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6679ad58ff0cdfb06de5f5a4win7simulatehigh_evasion
Tags:
Banker Encryption Execution Network Static Stealth Msil Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file
Using the Windows Management Instrumentation requests
Launching a process
Creating a file in the Windows subdirectories
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Sending a UDP request
Creating a process from a recently created file
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Enabling autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd cscript dcrat explorer lolbin net_reactor obfuscated packed schtasks vbnet
Link:
https://www.filescan.io/uploads/6679ad5c21581a92819efbe0/reports/24549b98-9635-426b-aeaf-36c8fdb8764c/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILMamut
Link:
https://www.hybrid-analysis.com/sample/b7ff3db3d1b8507adbfa83a011bf05280c1f885666c5205f75e6a014b55a14a4
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/34800ab1-3a5b-4ec5-9d3a-24df1828a443
Result
Threat name:
DCRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1461915
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an autostart registry key pointing to binary in C:\Windows
Creates an undocumented autostart registry key
Creates multiple autostart registry keys
Creates processes via WMI
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Execution from Suspicious Folder
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Suspicious Program Location with Network Connections
Sigma detected: System File Execution Location Anomaly
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DCRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1461915 Sample: nnlAowBYbo.exe Startdate: 24/06/2024 Architecture: WINDOWS Score: 100 56 a0997452.xsph.ru 2->56 58 Found malware configuration 2->58 60 Antivirus detection for URL or domain 2->60 62 Antivirus detection for dropped file 2->62 64 16 other signatures 2->64 9 nnlAowBYbo.exe 4 10 2->9         started        13 RuntimeBroker.exe 2 2->13         started        15 gAfNcFxKzPNgVIFiR.exe 2 2->15         started        17 13 other processes 2->17 signatures3 process4 dnsIp5 46 C:\Users\Public\Pictures\RuntimeBroker.exe, PE32 9->46 dropped 48 C:\Recovery\gAfNcFxKzPNgVIFiR.exe, PE32 9->48 dropped 50 C:\Users\user\AppData\...\nnlAowBYbo.exe.log, CSV 9->50 dropped 52 2 other malicious files 9->52 dropped 72 Creates an undocumented autostart registry key 9->72 74 Creates multiple autostart registry keys 9->74 76 Uses schtasks.exe or at.exe to add and modify task schedules 9->76 78 Creates processes via WMI 9->78 20 nnlAowBYbo.exe 3 14 9->20         started        80 Antivirus detection for dropped file 13->80 82 Multi AV Scanner detection for dropped file 13->82 84 Machine Learning detection for dropped file 13->84 54 a0997452.xsph.ru 141.8.192.103, 49705, 49707, 49714 SPRINTHOSTRU Russian Federation 17->54 file6 signatures7 process8 file9 38 C:\Windows\...\gAfNcFxKzPNgVIFiR.exe, PE32 20->38 dropped 40 C:\Program Files\...\gAfNcFxKzPNgVIFiR.exe, PE32 20->40 dropped 42 C:\...\gAfNcFxKzPNgVIFiR.exe, PE32 20->42 dropped 44 2 other malicious files 20->44 dropped 66 Creates an undocumented autostart registry key 20->66 68 Creates multiple autostart registry keys 20->68 70 Creates an autostart registry key pointing to binary in C:\Windows 20->70 24 cmd.exe 20->24         started        26 schtasks.exe 20->26         started        28 schtasks.exe 20->28         started        30 7 other processes 20->30 signatures10 process11 process12 32 conhost.exe 24->32         started        34 w32tm.exe 24->34         started        36 nnlAowBYbo.exe 24->36         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b7ff3db3d1b8507adbfa83a011bf05280c1f885666c5205f75e6a014b55a14a4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7ff3db3d1b8507adbfa83a011bf05280c1f885666c5205f75e6a014b55a14a4/
Threat name:
ByteCode-MSIL.Trojan.Whispergate
Create hunting rule
Status:
Malicious
First seen:
2024-06-19 02:11:28 UTC
File Type:
PE (.Net Exe)
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w77t3m6rxbihvw72qoqbdpyffagb7ccwm3csax3v42qbjnk2cssa._file
Verdict:
malicious
Similar samples:
250e2ffc212f555dacb277baa97dceab7312c8360c26a9d9e7f6572e37eec5e8
DCRat
266126ef45c3eb686abbb96bb3dc4427f7772bb48b8e9ad1c502b43c63c92475
DCRat
5f7afeeee13aaee6874a59a510b75767156f75d14db0cd4e1725ee619730ccc8
DCRat
9c8b561cf27708f285da964826b1183608e75be698f6b5a4469faea8e535a760
DCRat
b7ff3db3d1b8507adbfa83a011bf05280c1f885666c5205f75e6a014b55a14a4
DCRat
+ 357 additional samples on MalwareBazaar
Result
Malware family:
dcrat
Create hunting rule
Score:
  10/10
Tags:
family:dcrat infostealer persistence rat
Link:
https://tria.ge/reports/240624-v3pkwstgne/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
DCRat payload
DcRat
Modifies WinLogon for persistence
Process spawned unexpected child process
Unpacked files
SH256 hash:
b7ff3db3d1b8507adbfa83a011bf05280c1f885666c5205f75e6a014b55a14a4
MD5 hash:
537b0814b2b50fdcba27bef7050b78ac
SHA1 hash:
9cbb2f00a50eddc5ac879122dfd40878982152e6
Link:
https://www.unpac.me/results/beb6838c-0ea0-407f-a3d6-703ae6a8c0db/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b7ff3db3d1b8507adbfa83a011bf05280c1f885666c5205f75e6a014b55a14a4

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
Create hunting rule
Rule name:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:Skystars_Malware_Imphash
Create hunting rule
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