MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4b6920e28ddba697f8e2e33f6479d16c9b92fefdc36894e3c594e3f71095e4d. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments

SHA256 hash: d4b6920e28ddba697f8e2e33f6479d16c9b92fefdc36894e3c594e3f71095e4d
SHA3-384 hash: 52adb91b2c3295a61d59294c0453f0339b4098f8625b5d7c31b003b25d95a7f48d915bd7c59394976fdb00ed33c3f074
SHA1 hash: 38856dcaa805178155f0314a7e0430c66cb094bb
MD5 hash: c652fadd314392b61976fc226e6f6d38
humanhash: table-summer-nitrogen-magazine
File name:d4b6920e28ddba697f8e2e33f6479d16c9b92fefdc36894e3c594e3f71095e4d
Download: download sample
Signature Dharma
File size:94'720 bytes
First seen:2020-09-11 08:08:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f86dec4a80961955a89e7ed62046cc0e (42 x Dharma)
ssdeep 1536:mBwl+KXpsqN5vlwWYyhY9S4AwpW/GytI2ilKfM4eEN7Xt3y:Qw+asqN5aW/hLqk/BtSKpf73
TLSH 0F938C29D931C035F8A210FFCBF696FDAD645B202303D4D797C15A89AB825D5F832A27
Reporter @JAMESWT_MHT
Tags:Crysis Dharma Ransomware

Intelligence


File Origin
# of uploads :
1
# of downloads :
3'782
Origin country :
IT IT
Mail intelligence
No data
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Modifying an executable file
Changing a file
Launching a process
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
Creating a window
Launching a service
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
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
Detection:
malicious
Classification:
rans.spre.adwa.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
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
Infects executable files (exe, dll, sys, html)
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 284406 Sample: CodQ8WdihD Startdate: 11/09/2020 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 6 other signatures 2->44 7 CodQ8WdihD.exe 1 501 2->7         started        11 CodQ8WdihD.exe 2->11         started        13 CodQ8WdihD.exe 2->13         started        15 OpenWith.exe 2->15         started        process3 file4 26 C:\Windows\System32\CodQ8WdihD.exe, PE32 7->26 dropped 28 C:\Users\user\AppData\...\CodQ8WdihD.exe, PE32 7->28 dropped 30 C:\ProgramData\Microsoft\...\CodQ8WdihD.exe, PE32 7->30 dropped 32 79 other files (69 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 2 other signatures 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
Threat name:
Win32.Ransomware.Crysis
Status:
Malicious
First seen:
2020-08-20 07:06:00 UTC
File Type:
PE (Exe)
AV detection:
27 of 28 (96.43%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
ransomware persistence family:dharma spyware
Behaviour
Interacts with shadow copies
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
Modifies extensions of user files
Deletes shadow copies
Dharma

YARA Signatures


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

Rule name:MAL_Ransomware_Wadhrama
Author:Florian Roth
Description:Detects Wadhrama Ransomware via Imphash
Reference:Internal Research
Rule name:win_dharma_auto
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.

Comments