MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6c644a1644dd9b81a604fb6ad6a8cebf4a9b14d5c41da633a93ba2f459f31ae. 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


Dharma


Vendor detections: 9


Intelligence 9 IOCs YARA 2 File information Comments
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SHA256 hash: b6c644a1644dd9b81a604fb6ad6a8cebf4a9b14d5c41da633a93ba2f459f31ae
SHA3-384 hash: 4230405546f89c30d40d9ea2e748421cac836a84050c770b34a427cfe3b37ad04f286173ab8ea04bc5ac599c26d32bce
SHA1 hash: f57248526065852ecb491e871160cf1cb23ae22f
MD5 hash: ff9af6e3beebc9df0146f515f68e004e
humanhash: texas-cat-angel-lima
File name:b6c644a1644dd9b81a604fb6ad6a8cebf4a9b14d5c41da633a93ba2f459f31ae.bin
Download: download sample
Signature Dharma
Create hunting rule
File size:94'720 bytes
First seen:2020-10-16 16:34:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f86dec4a80961955a89e7ed62046cc0e (94 x Dharma, 1 x Crysis)
ssdeep 1536:mBwl+KXpsqN5vlwWYyhY9S4AqXeiKozyHj0vThU2BHYZsX3AZMgLzw4g:Qw+asqN5aW/hLMXeHoYQbhvYZD84
TLSH AB939E29D931D135E8A310FECBF796FD6D644B20130391E797C01D89A7869D6F932A32
Reporter Arkbird_SOLG
Tags:Crysis Dharma Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
3'677
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/72187/
Detection(s):
Win.Trojan.Dharma-6668198-0
Create hunting rule

SecuriteInfo.com.Trojan.Encoder.3953.12180.14230.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the system32 directory
Creating a file
Launching cmd.exe command interpreter
Creating a process with a hidden window
Enabling the 'hidden' option for recently created files
Changing a file
Modifying an executable file
Replacing executable files
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Creating a file in the Program Files directory
Launching a process
Sending a UDP request
Launching a service
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Deleting volume shadow copies
Enabling autorun by creating a file
Infecting executable files
Result
Threat name:
Crysis Wadhrama
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Detection:
malicious
Classification:
rans.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/493977
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an autostart registry key pointing to binary in C:\Windows
Creates files in the recycle bin to hide itself
Deletes shadow drive data (may be related to ransomware)
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the startup folder
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May disable shadow drive data (uses vssadmin)
Multi AV Scanner detection for submitted file
Writes many files with high entropy
Yara detected Crysis Ransomware
Yara detected Wadhrama Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 299446 Sample: E9Wmq5gNzv.bin Startdate: 16/10/2020 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for dropped file 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 8 other signatures 2->44 7 E9Wmq5gNzv.exe 1 501 2->7         started        11 E9Wmq5gNzv.exe 2->11         started        13 E9Wmq5gNzv.exe 2->13         started        15 OpenWith.exe 2->15         started        process3 file4 26 C:\Windows\System329Wmq5gNzv.exe, PE32 7->26 dropped 28 C:\Users\user\AppData\...9Wmq5gNzv.exe, PE32 7->28 dropped 30 C:\ProgramData\Microsoft\...9Wmq5gNzv.exe, PE32 7->30 dropped 32 89 other files (79 malicious) 7->32 dropped 46 Creates files in the recycle bin to hide itself 7->46 48 Drops PE files to the startup folder 7->48 50 Creates an autostart registry key pointing to binary in C:\Windows 7->50 52 Writes many files with high entropy 7->52 17 cmd.exe 1 7->17         started        signatures5 process6 signatures7 34 May disable shadow drive data (uses vssadmin) 17->34 36 Deletes shadow drive data (may be related to ransomware) 17->36 20 conhost.exe 17->20         started        22 vssadmin.exe 1 17->22         started        24 mode.com 1 17->24         started        process8
Detection:
dharma
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b6c644a1644dd9b81a604fb6ad6a8cebf4a9b14d5c41da633a93ba2f459f31ae/
Threat name:
Win32.Ransomware.Crysis
Create hunting rule
Status:
Malicious
First seen:
2018-10-10 16:00:03 UTC
AV detection:
28 of 29 (96.55%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w3dejilejxm3qgtaj63k22um5p2ktmknlra5uyz2so5c6rm7ggxa._file
Result
Malware family:
dharma
Create hunting rule
Score:
  10/10
Tags:
ransomware spyware family:dharma persistence
Link:
https://tria.ge/reports/201016-e9y8q45mj6/
Behaviour
Interacts with shadow copies
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Drops file in System32 directory
Modifies service
Adds Run key to start application
Drops desktop.ini file(s)
Drops startup file
Reads user/profile data of web browsers
Deletes shadow copies
Dharma
Unpacked files
SH256 hash:
b6c644a1644dd9b81a604fb6ad6a8cebf4a9b14d5c41da633a93ba2f459f31ae
MD5 hash:
ff9af6e3beebc9df0146f515f68e004e
SHA1 hash:
f57248526065852ecb491e871160cf1cb23ae22f
Detections:
win_dharma_auto
Create hunting rule
Link:
https://www.unpac.me/results/33369771-7389-4b75-a6e9-e7507830b85e/
SH256 hash:
6a5b713e4dd9a7ae5e774f3f53fac5153a62da19368a5124f30d655ea147e634
MD5 hash:
930ed857846635892b36fe6c3e77de12
SHA1 hash:
d6dfb1d413ded20ecec67240647f2e75bae3663e
Link:
https://www.unpac.me/results/33369771-7389-4b75-a6e9-e7507830b85e/
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/b6c644a1644dd9b81a604fb6ad6a8cebf4a9b14d5c41da633a93ba2f459f31ae

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:MAL_Ransomware_Wadhrama
Create hunting rule
Author:Florian Roth
Description:Detects Wadhrama Ransomware via Imphash
Reference:Internal Research
Rule name:win_dharma_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

  
Link
https://github.com/StrangerealIntel/DailyIOC/blob/master/2020-10-16/Ran_Crysis_Sep_2020_1.yar
  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/72187/

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