MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 94ef44e3f7be172fb47203eb942e4601f1a96cb4bfd37e055fd6cf39b5db49a6. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments

SHA256 hash: 94ef44e3f7be172fb47203eb942e4601f1a96cb4bfd37e055fd6cf39b5db49a6
SHA3-384 hash: 85a1c06589c0aaae8b2a4183731ce8b4d8c54d30c1b373edd53112d81a41b5b971471aab7d0f0e285988347b35bdc204
SHA1 hash: 0a297e9e5c807c06ad10f4f746f4f9e256df6743
MD5 hash: c24f6144e905b717a372c529d969611e
humanhash: pasta-stairway-nebraska-zebra
File name:winhost.exe
Download: download sample
Signature Dharma
File size:94'720 bytes
First seen:2022-09-08 14:58:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f86dec4a80961955a89e7ed62046cc0e (94 x Dharma, 1 x Crysis)
ssdeep 1536:mBwl+KXpsqN5vlwWYyhY9S4AqVsOF7+9UFEkzgAhRJpOKGkEb1S/:Qw+asqN5aW/hLI1iUFEkJLJcUEb1S/
Threatray 2'487 similar samples on MalwareBazaar
TLSH T19D93AE28D430D535E8A360FFCBF656FD9C644B20130384D793C11A8AAB959E6F932A37
TrID 29.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
22.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
20.3% (.EXE) Win32 Executable (generic) (4505/5/1)
9.1% (.EXE) OS/2 Executable (generic) (2029/13)
9.0% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter TheDFIRReportX
Tags:Dharma exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
418
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
winhost.exe
Verdict:
Malicious activity
Analysis date:
2022-09-08 15:02:29 UTC
Tags:
ransomware dharma

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the system32 directory
Creating a file
Launching cmd.exe command interpreter
Creating a process with a hidden window
Searching for synchronization primitives
Enabling the 'hidden' option for recently created files
Creating a file in the Program Files directory
Creating a file in the Program Files subdirectories
Modifying an executable file
Changing a file
Replacing executable files
Moving a file to the Program Files subdirectory
Launching a process
Sending a custom TCP 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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
crysis packed ransomware wadhrama
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.
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:
2021-02-09 14:48:40 UTC
File Type:
PE (Exe)
AV detection:
25 of 26 (96.15%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:dharma persistence ransomware spyware stealer
Behaviour
Interacts with shadow copies
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in System32 directory
Adds Run key to start application
Drops desktop.ini file(s)
Checks computer location settings
Drops startup file
Reads user/profile data of web browsers
Modifies extensions of user files
Deletes shadow copies
Dharma
Unpacked files
SH256 hash:
5d5ce769c49c12673107a074dbc3330e908c363fadfa2ae440d3ea8858425cef
MD5 hash:
a5ca574348dfa4ca58ed948c350f5782
SHA1 hash:
a2f6c53c9297ff2f1901ac37535898185d1af236
SH256 hash:
94ef44e3f7be172fb47203eb942e4601f1a96cb4bfd37e055fd6cf39b5db49a6
MD5 hash:
c24f6144e905b717a372c529d969611e
SHA1 hash:
0a297e9e5c807c06ad10f4f746f4f9e256df6743
Detections:
win_dharma_auto
Please note that we are no longer able to provide a coverage score for Virus Total.

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:MALWARE_Win_Dharma
Author:ditekSHen
Description:Detects Dharma ransomware
Rule name:MAL_Ransomware_Wadhrama
Author:Florian Roth
Description:Detects Wadhrama Ransomware via Imphash
Reference:Internal Research
Rule name:MAL_Ransomware_Wadhrama_RID2FED
Author:Florian Roth
Description:Detects Wadhrama Ransomware via Imphash
Reference:Internal Research
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
Rule name:Ran_Crysis_Sep_2020_1
Author:Arkbird_SOLG
Description:Detect Crysis ransomware
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.

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