MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a40acb8ddbc2ed8f8b703681fadf9fcb2672fdb75d93c150b45c6465cc9b1b4. 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: 0a40acb8ddbc2ed8f8b703681fadf9fcb2672fdb75d93c150b45c6465cc9b1b4
SHA3-384 hash: 001ff46881b69b35958685dc90f1d7f3d2b9d7d00acf868d3218218c9145b51bfff4973e7f54cd18a7d5dc3019cd37b7
SHA1 hash: 1207eee8da1eadc46cbf8fd4a1ac1684989ff6d1
MD5 hash: 44ff6136293b783a38c252ee5025dc87
humanhash: sixteen-moon-one-hot
File name:0a40acb8ddbc2ed8f8b703681fadf9fcb2672fdb75d93c150b45c6465cc9b1b4
Download: download sample
Signature Dharma
File size:94'720 bytes
First seen:2020-09-11 08:06:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f86dec4a80961955a89e7ed62046cc0e (42 x Dharma)
ssdeep 1536:mBwl+KXpsqN5vlwWYyhY9S4A9xj2yu5J+/APEytVw5Jo1uR6tqZtZn97f:Qw+asqN5aW/hLj92yuK/9PJoE86JVf
Threatray 29 similar samples on MalwareBazaar
TLSH D9938D29D931D035E8A310FFCBF756FD5D244B20230794DB87D11E59AB8A9E6F832922
Reporter @JAMESWT_MHT
Tags:Crysis Dharma Ransomware

Intelligence


File Origin
# of uploads :
1
# of downloads :
3'740
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
Creating a file in the Program Files directory
Creating a file in the Program Files subdirectories
Changing a file
Modifying an executable file
Replacing executable files
Sending a UDP request
Moving a file to the Program Files subdirectory
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 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: 284376 Sample: 3L7rBV3AS4 Startdate: 11/09/2020 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 3L7rBV3AS4.exe 1 501 2->7         started        11 3L7rBV3AS4.exe 2->11         started        13 3L7rBV3AS4.exe 2->13         started        15 OpenWith.exe 2->15         started        process3 file4 26 C:\Windows\System32\3L7rBV3AS4.exe, PE32 7->26 dropped 28 C:\Users\user\AppData\...\3L7rBV3AS4.exe, PE32 7->28 dropped 30 C:\ProgramData\Microsoft\...\3L7rBV3AS4.exe, PE32 7->30 dropped 32 84 other files (73 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
Threat name:
Win32.Ransomware.Crysis
Status:
Malicious
First seen:
2020-09-04 22:28:23 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 persistence spyware
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

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.

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