MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d8ffa30554984f32eabbcb7a99699dd833ea85a8483db8753cc40bde7cee923. 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

SHA256 hash: 4d8ffa30554984f32eabbcb7a99699dd833ea85a8483db8753cc40bde7cee923
SHA3-384 hash: a3e95c10bccc33fb8dcd0c9351bdcfe5e957bb7e5d8f8899721e19d6a7f37e7f2976a8834696ff3588d44a5d4cd16bde
SHA1 hash: 48eff768bf72cfb10dd5398bf5b59bab73d01446
MD5 hash: 16fe3cf71768a3646d4d3bb8f2f6111f
humanhash: india-william-berlin-maine
File name:4d8ffa30554984f32eabbcb7a99699dd833ea85a8483db8753cc40bde7cee923
Download: download sample
Signature Dharma
File size:94'720 bytes
First seen:2020-09-11 08:08:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f86dec4a80961955a89e7ed62046cc0e (42 x Dharma)
ssdeep 1536:mBwl+KXpsqN5vlwWYyhY9S4ATNjjFcZuQdUxX7KX+sie3K42:Qw+asqN5aW/hLfjjFcZhGRsiL42
Threatray 29 similar samples on MalwareBazaar
TLSH AF939D29D931D135E8A350FFCBF68ABDAD644B201307C4D793C12E89A7965D9F832632
Reporter @JAMESWT_MHT
Tags:Crysis Dharma Ransomware

Intelligence


File Origin
# of uploads :
1
# of downloads :
3'734
Origin country :
IT IT
Mail intelligence
No data
Vendor Threat Intelligence
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
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
Detection:
malicious
Classification:
rans.adwa.evad
Score:
100 / 100
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 dropped file
Multi AV Scanner detection for submitted file
Writes many files with high entropy
Yara detected Crysis Ransomware
Yara detected Wadhrama Ransomware
Behaviour
Behavior Graph:
Threat name:
Win32.Ransomware.Crysis
Status:
Malicious
First seen:
2020-09-01 02:16:00 UTC
File Type:
PE (Exe)
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
ransomware family:dharma spyware persistence
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
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