MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66cc00efebb6934149a52d1ea39971ee9bcff170f27c900f893258f45e8e9d8b. 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: 12


Intelligence 12 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 66cc00efebb6934149a52d1ea39971ee9bcff170f27c900f893258f45e8e9d8b
SHA3-384 hash: ea882bb8aef0323725b5bb8eb1025398ea71e2704c21a478d21469318f6f6062c09116e84221ce6e06f3eb893f44de20
SHA1 hash: d5b72586d7f9e75a2b33d9ba40068f089664da7e
MD5 hash: b3dfa7af47703e6d730b8055a59355f7
humanhash: skylark-lion-shade-speaker
File name:66CC00EFEBB6934149A52D1EA39971EE9BCFF170F27C9.exe
Download: download sample
Signature DCRat
Create hunting rule
File size:785'408 bytes
First seen:2022-09-26 14:00:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:B2NE5gtfty4zQzbc971saPR3OfYGoPqLo1/GorwRR1kZpn8zL3OA0By+rsUAuNmf:B2NNnQ/e71sa5dp1nyzL3OxrNaQQm
TLSH T1FFF486342EEA1029F177AF7D8AE47596DA6EB6A33707995D00B103C60723B42DDD063E
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13101/52/3)
8.6% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:DCRat exe


Avatar
abuse_ch
DCRat C2:
http://22866.clmonth.nyashteam.ru/nyashsupport.php

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://22866.clmonth.nyashteam.ru/nyashsupport.php https://threatfox.abuse.ch/ioc/851794/

Intelligence

File Origin
# of uploads :
1
# of downloads :
240
Origin country :
n/a
Vendor Threat Intelligence
Detection:
DCRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/313610/
Detection(s):
SecuriteInfo.com.BackDoor.DarkCrystalNET.18.2246.16936.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the Windows subdirectories
Using the Windows Management Instrumentation requests
Launching a process
Creating a file
Creating a file in the Program Files subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Running batch commands
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/6331b0a15291e4a063ebf316/reports/c8232d45-320d-4c69-9c6f-92280bc0b3c2/overview
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/24a70fb3-1d60-4a10-a17a-833ca5a53831
Result
Threat name:
DCRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1077890
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 executable to a common third party application directory
Drops executables to the windows directory (C:\Windows) and starts them
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
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
Uses the Telegram API (likely for C&C communication)
Yara detected DCRat
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 710433 Sample: 66CC00EFEBB6934149A52D1EA39... Startdate: 27/09/2022 Architecture: WINDOWS Score: 100 28 22866.clmonth.nyashteam.ru 2->28 36 Snort IDS alert for network traffic 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for dropped file 2->40 42 12 other signatures 2->42 7 66CC00EFEBB6934149A52D1EA39971EE9BCFF170F27C9.exe 1 16 2->7         started        11 System.exe 15 2 2->11         started        14 winlogon.exe 3 2->14         started        16 15 other processes 2->16 signatures3 process4 dnsIp5 20 C:\Windows\LiveKernelReports\System.exe, PE32 7->20 dropped 22 C:\Program Files\...\winlogon.exe, PE32 7->22 dropped 24 C:\Program Files (x86)\...\dllhost.exe, PE32 7->24 dropped 26 6 other malicious files 7->26 dropped 44 Creates processes via WMI 7->44 46 Drops executable to a common third party application directory 7->46 18 System.exe 7->18         started        30 22866.clmonth.nyashteam.ru 178.248.214.228, 49684, 49687, 49688 MEDIACTIVE-NETWORKMEDIACTIVESASFR France 11->30 32 api.telegram.org 149.154.167.220, 443, 49690 TELEGRAMRU United Kingdom 11->32 34 3 other IPs or domains 11->34 48 Multi AV Scanner detection for dropped file 11->48 50 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->50 52 May check the online IP address of the machine 11->52 54 2 other signatures 11->54 file6 signatures7 process8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/66cc00efebb6934149a52d1ea39971ee9bcff170f27c900f893258f45e8e9d8b/
Threat name:
ByteCode-MSIL.Trojan.SpyNoon
Create hunting rule
Status:
Malicious
First seen:
2022-09-21 14:33:58 UTC
File Type:
PE (.Net Exe)
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m3gab37lw2jucsnffupkhglr52n474lq6j6jad4jgjmpixuotwfq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
dcrat
Create hunting rule
Score:
  10/10
Tags:
family:dcrat infostealer rat
Link:
https://tria.ge/reports/220926-rbkabacbeq/
Behaviour
Creates scheduled task(s)
Modifies registry class
Modifies system certificate store
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
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
DCRat payload
DcRat
Process spawned unexpected child process
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/07b5344d-f019-4012-8a53-98643cbb8a48
Unpacked files
SH256 hash:
a6961717611d5e276dc288c7a79e4b53db54326e46ca7b6c516247aaf1539071
MD5 hash:
8372644a8f15ad1bacabfdd948d22c02
SHA1 hash:
590024c7af62c018a8f123b3ee4000da9c76bb57
Link:
https://www.unpac.me/results/4f090cb6-9feb-49b0-bd7a-35f6edb53192/
SH256 hash:
66cc00efebb6934149a52d1ea39971ee9bcff170f27c900f893258f45e8e9d8b
MD5 hash:
b3dfa7af47703e6d730b8055a59355f7
SHA1 hash:
d5b72586d7f9e75a2b33d9ba40068f089664da7e
Link:
https://www.unpac.me/results/4f090cb6-9feb-49b0-bd7a-35f6edb53192/
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/66cc00efebb6934149a52d1ea39971ee9bcff170f27c900f893258f45e8e9d8b

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:RansomwareTest3
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest4
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest6
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
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/313610/

Comments