MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b1fdb4c610d81dea7ea4ac940716e4bfcab7461dc6f426512f3fb65167db86c. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b1fdb4c610d81dea7ea4ac940716e4bfcab7461dc6f426512f3fb65167db86c
SHA3-384 hash: a96ff5c81bc88b637d03797d4dc4bd77b9baab94449351e3f8553d78fb8de297a638b36825da0c074a63921fbccf258f
SHA1 hash: d0d8e147937154f4f46aa4aefe8450aef0d1642e
MD5 hash: a14490d946919f2a4b9c66f5bd8178f8
humanhash: december-ten-summer-saturn
File name:8B1FDB4C610D81DEA7EA4AC940716E4BFCAB7461DC6F4.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:818'176 bytes
First seen:2023-02-11 08:01:15 UTC
Last seen:2023-02-11 09:59:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:FoNE5V/W9h7dHQ4PHRSd5c9kVklPFQryMbhT9LZjEMX0GbfvGjCnYZx:FoNbagHR0zhzTGm4
Threatray 4'513 similar samples on MalwareBazaar
TLSH T1C20586342EEA1029F177AF7D8AE47596EA6EB6A33707994D00B103C60723B42DDD153E
TrID 59.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.6% (.SCR) Windows screen saver (13097/50/3)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://194.67.111.145/Geopublic2Linux/WindowsPacketUpdatetraffic/Flowerlongpoll8/Uploads519/flower8eternalwp/9/7/ToPublic/private/dleGeoAsync/1/dledumpProcessLocal/defaultdefault/AsyncBetterImageLongpoll/TodatalifePublicProtect/ToRequest.php

Intelligence

File Origin
# of uploads :
2
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
dcrat
Create hunting rule
ID:
1
File name:
8B1FDB4C610D81DEA7EA4AC940716E4BFCAB7461DC6F4.exe
Verdict:
Malicious activity
Analysis date:
2023-02-11 08:04:09 UTC
Tags:
trojan rat backdoor dcrat
Link:
https://app.any.run/tasks/21ca7de6-02b9-4f3c-9abe-9d5d0deb0119

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DCRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/363796/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILMamut.2447.11962.23088.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file
Using the Windows Management Instrumentation requests
Launching a process
Creating a process from a recently created file
Creating a process with a hidden window
Sending an HTTP GET request
Creating a window
Searching for synchronization primitives
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm cmd.exe cscript.exe dcrat explorer.exe greyware hacktool packed schtasks.exe
Link:
https://www.filescan.io/uploads/63e74b7bd641da4e64d75fc8/reports/c882d380-225d-40d5-b676-6a70a62147dd/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILMamut
Link:
https://www.hybrid-analysis.com/sample/8b1fdb4c610d81dea7ea4ac940716e4bfcab7461dc6f426512f3fb65167db86c
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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7b992412-df77-4e13-809e-77187740577f
Result
Threat name:
DCRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1171836
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates processes via WMI
Drops PE files to the document folder of the user
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected DCRat
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 804626 Sample: 8B1FDB4C610D81DEA7EA4AC9407... Startdate: 11/02/2023 Architecture: WINDOWS Score: 100 26 Snort IDS alert for network traffic 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Antivirus detection for dropped file 2->30 32 10 other signatures 2->32 5 8B1FDB4C610D81DEA7EA4AC940716E4BFCAB7461DC6F4.exe 1 34 2->5         started        9 WmiPrvSE.exe 2->9         started        11 ShellExperienceHost.exe 3 2->11         started        13 37 other processes 2->13 process3 dnsIp4 16 C:\Users\user\...\ShellExperienceHost.exe, PE32 5->16 dropped 18 C:\Users\Public\Pictures\WmiPrvSE.exe, PE32 5->18 dropped 20 C:\Users\Public\AccountPictures\System.exe, PE32 5->20 dropped 22 17 other malicious files 5->22 dropped 34 Drops PE files to the document folder of the user 5->34 36 Creates processes via WMI 5->36 38 Multi AV Scanner detection for dropped file 9->38 40 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->40 42 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 9->42 44 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->44 46 Antivirus detection for dropped file 11->46 48 Machine Learning detection for dropped file 11->48 24 194.67.111.145, 49686, 49687, 49688 AS-REGRU Russian Federation 13->24 file5 signatures6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8b1fdb4c610d81dea7ea4ac940716e4bfcab7461dc6f426512f3fb65167db86c/
Threat name:
ByteCode-MSIL.Trojan.Mamut
Create hunting rule
Status:
Malicious
First seen:
2023-02-05 01:58:17 UTC
File Type:
PE (.Net Exe)
AV detection:
31 of 39 (79.49%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rmp5wtdbbwa55j7kjleua4lojp6kw5db3rxuezis6p5wkft5xbwa._file
Verdict:
malicious
Similar samples:
149f198a7df1d0c3507a57c95abe045705ce3dbde78c988f3c9fad722a3dfc9f
DCRat
576437a881af98afed6680cd7fe0ae52adb87a528ece6d367eaf436765fe1d9e
DCRat
66cc00efebb6934149a52d1ea39971ee9bcff170f27c900f893258f45e8e9d8b
DCRat
6b86c8444c1cb820c12239dcbb771f0243c8d652b1051771ad52309b6243e040
DCRat
8126b281072f428af30905d7c2fadee86ba76c7a9e8053264b463388cf301b46
DCRat
a6b84afa6a28c6032c427152885270d3849a6a4134e442cac42e3f78becefc84
DCRat
b4b4b2e1f146c2a8517011cc6e32f50c4be7fe9a1c83c5fa916e67b118b856d3
DCRat
f9a553b6c9b073ad459402b58ecbac35fa4bcb922ff46b16a9653b59fc41a152
DCRat
+ 4'503 additional samples on MalwareBazaar
Result
Malware family:
dcrat
Create hunting rule
Score:
  10/10
Tags:
family:dcrat infostealer rat
Link:
https://tria.ge/reports/230211-jw4wfsaa62/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Checks computer location settings
Executes dropped EXE
DCRat payload
DcRat
Process spawned unexpected child process
Unpacked files
SH256 hash:
150bc49f9755f25221bfc445c7a067615cdb8de797c6c6ba873e3f56e0036799
MD5 hash:
62e2e1875fed8255a355ad33978871f8
SHA1 hash:
cbd378e64a125ba6b0306d126eec6bd4cecda46c
Link:
https://www.unpac.me/results/1587358b-5059-4324-8777-c0fcaf956d62/
SH256 hash:
8b1fdb4c610d81dea7ea4ac940716e4bfcab7461dc6f426512f3fb65167db86c
MD5 hash:
a14490d946919f2a4b9c66f5bd8178f8
SHA1 hash:
d0d8e147937154f4f46aa4aefe8450aef0d1642e
Link:
https://www.unpac.me/results/1587358b-5059-4324-8777-c0fcaf956d62/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/8b1fdb4c610d81dea7ea4ac940716e4bfcab7461dc6f426512f3fb65167db86c

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:INDICATOR_SUSPICIOUS_EXE_Embedded_Gzip_B64Encoded_File
Create hunting rule
Author:ditekSHen
Description:Detects executables containing bas64 encoded gzip files
Rule name:MALWARE_Win_DCRat
Create hunting rule
Author:ditekSHen
Description:DCRat payload
Rule name:pe_imphash
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/363796/

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