MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 be41b813b1af4634ec14cb822090bb16e300dc61f478c473ac3b18e6dc025150. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments
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SHA256 hash: be41b813b1af4634ec14cb822090bb16e300dc61f478c473ac3b18e6dc025150
SHA3-384 hash: fec3c68f1c136c8adb592b249aa18f2f6c2e5dc98a4cabcb2617f74da6349ff440b7bf2f768e2d6693f2f33a7b7d0ee4
SHA1 hash: 5d59cc33696cdc78f59448f2f6fb6cb08622b976
MD5 hash: af70883f7ff9f9c19286ed07972bab84
humanhash: east-paris-ink-queen
File name:be41b813b1af4634ec14cb822090bb16e300dc61f478c473ac3b18e6dc025150
Download: download sample
Signature Chaos
Create hunting rule
File size:145'920 bytes
First seen:2024-11-02 16:20:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 3072:o3kGRr9i0TVKIe6m8sdpcL0uhq70NEqj5Swo29V56K+Olhly3UdcHkl:+r9i0sIF5gdQubv29V56K+ihly3MN
Threatray 279 similar samples on MalwareBazaar
TLSH T109E33C2439EB5029F3B3AF769BD4B99F996FF7733706605A104103460B23A42DE91739
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter JAMESWT_WT
Tags:Chaos exe Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
497
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
be41b813b1af4634ec14cb822090bb16e300dc61f478c473ac3b18e6dc025150.exe
Verdict:
Malicious activity
Analysis date:
2024-11-02 16:31:12 UTC
Tags:
crypto-regex chaos ransomware
Link:
https://app.any.run/tasks/867fbf04-c5d7-4fee-ab06-44f85b53928b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=672651818d23d9049132d0da
Tags:
powershell autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file
Changing a file
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Running batch commands
Creating a process with a hidden window
Launching a service
Creating a window
Launching a process
Searching for synchronization primitives
Creating a file in the %temp% directory
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Creating a file in the mass storage device
Deleting volume shadow copies
Preventing system recovery
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-security azorult bladabindi chaos cmd filecoder hydracrypt lolbin ransomware wmic
Link:
https://www.filescan.io/uploads/672651756a55753ad667731c/reports/9c922d35-0eba-4b68-b9a6-64435e6788cd/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/be41b813b1af4634ec14cb822090bb16e300dc61f478c473ac3b18e6dc025150
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:
CHAOS Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/848313da-aeeb-431f-af34-eaaf6e4d6fac
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1547555
Signature
.NET source code contains very large strings
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
Deletes the backup plan of Windows
Found ransom note / readme
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
Overwrites Mozilla Firefox settings
Sigma detected: Delete shadow copy via WMIC
Sigma detected: Drops script at startup location
Sigma detected: Shadow Copies Deletion Using Operating Systems Utilities
Tries to harvest and steal browser information (history, passwords, etc)
Uses bcdedit to modify the Windows boot settings
Yara detected Chaos Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1547555 Sample: oXc1Y3EiV5.exe Startdate: 02/11/2024 Architecture: WINDOWS Score: 100 82 Malicious sample detected (through community Yara rule) 2->82 84 Antivirus / Scanner detection for submitted sample 2->84 86 Multi AV Scanner detection for submitted file 2->86 88 9 other signatures 2->88 8 oXc1Y3EiV5.exe 4 2->8         started        12 svchoster.exe 2->12         started        14 wbengine.exe 3 2->14         started        16 3 other processes 2->16 process3 file4 74 C:\Users\user\AppData\Roaming\svchoster.exe, PE32 8->74 dropped 76 C:\Users\...\svchoster.exe:Zone.Identifier, ASCII 8->76 dropped 78 C:\Users\user\AppData\...\oXc1Y3EiV5.exe.log, CSV 8->78 dropped 106 Deletes shadow drive data (may be related to ransomware) 8->106 18 svchoster.exe 3 55 8->18         started        108 Overwrites Mozilla Firefox settings 12->108 110 Uses bcdedit to modify the Windows boot settings 12->110 112 Tries to harvest and steal browser information (history, passwords, etc) 12->112 22 cmd.exe 12->22         started        24 cmd.exe 12->24         started        26 cmd.exe 12->26         started        28 notepad.exe 12->28         started        114 Creates files inside the volume driver (system volume information) 14->114 signatures5 process6 file7 66 C:\Users\user\AppData\Roaming\...\read_it.txt, ASCII 18->66 dropped 68 C:\Users\user\AppData\Roaming\...\read_it.txt, ASCII 18->68 dropped 70 C:\Users\user\AppData\Roaming\...\read_it.txt, ASCII 18->70 dropped 72 2 other malicious files 18->72 dropped 90 Antivirus detection for dropped file 18->90 92 Multi AV Scanner detection for dropped file 18->92 94 Machine Learning detection for dropped file 18->94 96 Overwrites Mozilla Firefox settings 18->96 30 cmd.exe 1 18->30         started        33 cmd.exe 1 18->33         started        35 cmd.exe 1 18->35         started        37 notepad.exe 5 18->37         started        98 May disable shadow drive data (uses vssadmin) 22->98 100 Deletes shadow drive data (may be related to ransomware) 22->100 39 vssadmin.exe 22->39         started        41 conhost.exe 22->41         started        43 WMIC.exe 22->43         started        102 Uses bcdedit to modify the Windows boot settings 24->102 45 3 other processes 24->45 104 Deletes the backup plan of Windows 26->104 47 2 other processes 26->47 signatures8 process9 signatures10 116 May disable shadow drive data (uses vssadmin) 30->116 118 Deletes shadow drive data (may be related to ransomware) 30->118 120 Uses bcdedit to modify the Windows boot settings 30->120 49 vssadmin.exe 1 30->49         started        52 WMIC.exe 1 30->52         started        54 conhost.exe 30->54         started        56 bcdedit.exe 8 1 33->56         started        58 bcdedit.exe 9 1 33->58         started        60 conhost.exe 33->60         started        122 Deletes the backup plan of Windows 35->122 62 conhost.exe 35->62         started        64 wbadmin.exe 3 35->64         started        process11 signatures12 80 Deletes shadow drive data (may be related to ransomware) 49->80
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/be41b813b1af4634ec14cb822090bb16e300dc61f478c473ac3b18e6dc025150
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/be41b813b1af4634ec14cb822090bb16e300dc61f478c473ac3b18e6dc025150/
Threat name:
ByteCode-MSIL.Ransomware.Sorry
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Status:
Malicious
First seen:
2024-10-24 00:40:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xza3qe5rv5ddj3auzobcbef3c3rqbxdb6r4mi45mhmmonxackfia._file
Verdict:
malicious
Label(s):
genericransomware
Create hunting rule
chaos
Create hunting rule
Similar samples:
4c595e8e612d7663804656ecfb65d3a833e585652ba8f15f486611873420e9a1
Chaos
524a898e18999ceac864dbac5b85fa2f14392e389b3c32f77d58e2a89cdf01c4
Chaos
87501bb9f50174d8d306bbbbebe12903ff01d75de0cc32714ed82991b57a86c6
Chaos
a54a38a9aab0bde31b2065d8b88a8e6569cc66c3f6137379b6b5a62361c319f0
Chaos
be41b813b1af4634ec14cb822090bb16e300dc61f478c473ac3b18e6dc025150
Chaos
error
Chaos
+ 269 additional samples on MalwareBazaar
Result
Malware family:
chaos
Create hunting rule
Score:
  10/10
Tags:
family:chaos defense_evasion evasion execution impact ransomware spyware stealer
Link:
https://tria.ge/reports/241102-ttm52askfr/
Behaviour
Checks SCSI registry key(s)
Interacts with shadow copies
Modifies registry class
Opens file in notepad (likely ransom note)
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
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
Deletes shadow copies
Modifies boot configuration data using bcdedit
Chaos
Chaos Ransomware
Chaos family
Verdict:
Malicious
Tags:
ransomware chaos
YARA:
MALWARE_Win_Chaos
Link:
https://app.threat.zone/submission/cd1897b7-9f50-4fd8-a4c6-fa8360bbe297
Unpacked files
SH256 hash:
be41b813b1af4634ec14cb822090bb16e300dc61f478c473ac3b18e6dc025150
MD5 hash:
af70883f7ff9f9c19286ed07972bab84
SHA1 hash:
5d59cc33696cdc78f59448f2f6fb6cb08622b976
Detections:
ChaosRansomware
Create hunting rule
Link:
https://www.unpac.me/results/4688db60-77a3-4e23-b251-66d8bd1194c6/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/be41b813b1af4634ec14cb822090bb16e300dc61f478c473ac3b18e6dc025150

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:MALWARE_Win_Chaos
Create hunting rule
Author:ditekSHen
Description:Detects Chaos ransomware
Rule name:pe_imphash
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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