MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a80908bcd96a8df6070eb9a9c83739c8d95c34d7d81b890bacda91bb05c53267. 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


Chaos


Vendor detections: 13


Intelligence 13 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a80908bcd96a8df6070eb9a9c83739c8d95c34d7d81b890bacda91bb05c53267
SHA3-384 hash: 12e6b3a8993cf77bcaed1536583241d5ad31156cfe7de4435d8802b643ec014ad156208c046e1d93efcdd2b7e2d2bf50
SHA1 hash: a9f41548d827728e44cb0296b05ae23295698c46
MD5 hash: 028d8a0f2eefdc87bcfde1457470789c
humanhash: texas-blossom-coffee-sixteen
File name:2023-03-04_028d8a0f2eefdc87bcfde1457470789c_wannacry
Download: download sample
Signature Chaos
Create hunting rule
File size:2'843'136 bytes
First seen:2023-03-05 08:03:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'859 x AgentTesla, 19'787 x Formbook, 12'305 x SnakeKeylogger)
ssdeep 24576:bvS4lQMNWi3VesNY8106qPN4K3P0QcejoMZLyiTtiFfkOfE:bvSy6PX3PpM+P5Id
Threatray 895 similar samples on MalwareBazaar
TLSH T18BD52D3839EA9019F1B3EF7A6FD4B9D7DA9FB7733A0294191081034B4623A81DD9153E
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon f0f4b27959b2f4f0 (6 x Chaos, 2 x WannaCry)
Reporter petikvx
Tags:Chaos

Intelligence

File Origin
# of uploads :
1
# of downloads :
146
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2023-02-15_aa5c75d313a98f3284d7ef52236d2d46_neshta_wannacry
Verdict:
Malicious activity
Analysis date:
2023-02-16 10:59:39 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/14e34751-ed21-4261-bfec-5254bc0394f4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Chaos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/371692/
Detection(s):
Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Searching for the window
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a service
Launching a process
Searching for synchronization primitives
Changing a file
Using the Windows Management Instrumentation requests
Creating a window
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Deleting volume shadow copies
Preventing system recovery
Blocking a possibility to launch for the Windows Task Manager (taskmgr)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
clipbanker cmd.exe filecoder hydracrypt ransomware ransomx
Link:
https://www.filescan.io/uploads/64044cfc0e8ce4beca25b496/reports/644d0b2c-f7e1-4c21-b099-436d5b603c7d/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/a80908bcd96a8df6070eb9a9c83739c8d95c34d7d81b890bacda91bb05c53267
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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2718c12c-0250-499c-a4ea-249bf8832e8d
Result
Threat name:
Chaos, Conti
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1187311
Signature
Antivirus / Scanner detection for submitted sample
Changes security center settings (notifications, updates, antivirus, firewall)
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
Deletes the backup plan of Windows
Disables the Windows task manager (taskmgr)
Drops PE files with benign system names
Drops script or batch files to the startup folder
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May disable shadow drive data (uses vssadmin)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Sigma detected: Delete shadow copy via WMIC
Uses bcdedit to modify the Windows boot settings
Writes many files with high entropy
Yara detected Chaos Ransomware
Yara detected Conti ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 820183 Sample: NzPn2tcBSF.exe Startdate: 05/03/2023 Architecture: WINDOWS Score: 100 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus / Scanner detection for submitted sample 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 5 other signatures 2->67 8 NzPn2tcBSF.exe 5 2->8         started        12 wbengine.exe 2->12         started        14 svchost.exe 2->14         started        16 11 other processes 2->16 process3 file4 59 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->59 dropped 85 Drops PE files with benign system names 8->85 18 svchost.exe 2 502 8->18         started        87 Creates files inside the volume driver (system volume information) 12->87 89 Query firmware table information (likely to detect VMs) 14->89 91 Changes security center settings (notifications, updates, antivirus, firewall) 16->91 22 conhost.exe 16->22         started        signatures5 process6 file7 51 C:\...\CachedImage_1280_1024_POS4.jpg.jm6o, data 18->51 dropped 53 C:\Users\user\AppData\...\flapper.gif.ydvv, data 18->53 dropped 55 C:\Users\user\AppData\...\craw_window.js.gggb, data 18->55 dropped 57 46 other malicious files 18->57 dropped 69 Multi AV Scanner detection for dropped file 18->69 71 Drops script or batch files to the startup folder 18->71 73 Deletes shadow drive data (may be related to ransomware) 18->73 75 4 other signatures 18->75 24 cmd.exe 1 18->24         started        27 cmd.exe 1 18->27         started        29 cmd.exe 18->29         started        31 cmd.exe 18->31         started        signatures8 process9 signatures10 77 May disable shadow drive data (uses vssadmin) 24->77 79 Deletes shadow drive data (may be related to ransomware) 24->79 81 Uses bcdedit to modify the Windows boot settings 24->81 33 WMIC.exe 1 24->33         started        35 conhost.exe 24->35         started        37 vssadmin.exe 1 24->37         started        39 bcdedit.exe 8 1 27->39         started        41 bcdedit.exe 7 1 27->41         started        43 conhost.exe 27->43         started        83 Deletes the backup plan of Windows 29->83 45 conhost.exe 29->45         started        47 wbadmin.exe 29->47         started        49 conhost.exe 31->49         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a80908bcd96a8df6070eb9a9c83739c8d95c34d7d81b890bacda91bb05c53267/
Threat name:
ByteCode-MSIL.Ransomware.Sirattacker
Create hunting rule
Status:
Malicious
First seen:
2023-02-16 15:37:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
25 of 25 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vaeqrpgznkg7mbyoxgu4qnzzzdmvyngx3anysc5m3ki3wbofgjtq._file
Verdict:
malicious
Similar samples:
069b31cb7f9054647b684da4fc5263fa690e32d75729ec6b5c808b0c532b9628
Chaos
12de04133def8f1652bbf2aaac8454d76141f5115e9e6d9131dcb2ffbdbee66e
Chaos
2e085282467ab80f8064d2557f4afea9a82ba68e52ccd6f6f4c75e0f81dd0b30
Chaos
6f8f904598a1dd49277595855a35602aeecc1ce6471dcc949def88f27199388e
Chaos
7c5f6eb2a7eafa8c6891486bb1af755cc64e087c67945ab51bada4f4fcaea2ed
Chaos
b6e4d99871249faefd2ed9dab5dd045d3d9ea13b4608262588eb157ddc312a68
Chaos
b8a277a731485717c01a7d20fb6af795fa823a219b9b01ee2f476889610a28da
Chaos
d6618f430c04b203394c7887803a2171402efa31427c0835e24c9dec935bf79c
Chaos
e6de7531d2c7900ff73b30e33170fd7530fb7771518503c65203b1a419a8d11e
Chaos
+ 885 additional samples on MalwareBazaar
Result
Malware family:
chaos
Create hunting rule
Score:
  10/10
Tags:
family:chaos evasion persistence ransomware spyware stealer
Link:
https://tria.ge/reports/230305-jx94vsfd9v/
Behaviour
Checks SCSI registry key(s)
Interacts with shadow copies
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Sets desktop wallpaper using registry
Adds Run key to start application
Drops desktop.ini file(s)
Checks computer location settings
Drops startup file
Executes dropped EXE
Reads user/profile data of web browsers
Deletes backup catalog
Disables Task Manager via registry modification
Modifies extensions of user files
Deletes shadow copies
Modifies boot configuration data using bcdedit
Chaos
Chaos Ransomware
Unpacked files
SH256 hash:
a80908bcd96a8df6070eb9a9c83739c8d95c34d7d81b890bacda91bb05c53267
MD5 hash:
028d8a0f2eefdc87bcfde1457470789c
SHA1 hash:
a9f41548d827728e44cb0296b05ae23295698c46
Link:
https://www.unpac.me/results/9aa35b18-f237-4f76-ab77-bb50439c57cd/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/a80908bcd96a8df6070eb9a9c83739c8d95c34d7d81b890bacda91bb05c53267

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:INDICATOR_SUSPICIOUS_GENRansomware
Create hunting rule
Author:ditekSHen
Description:detects command variations typically used by ransomware
Rule name:INDICATOR_SUSPICOUS_EXE_References_VEEAM
Create hunting rule
Author:ditekSHen
Description:Detects executables containing many references to VEEAM. Observed in ransomware
Rule name:MALWARE_Win_Chaos
Create hunting rule
Author:ditekSHen
Description:Detects Chaos ransomware
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/371692/

Comments