MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55. 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 7 File information Comments
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SHA256 hash: af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55
SHA3-384 hash: ce1d77182261231ec994b4ce12cc6e5999e5a718d81e6d9d4e91ecda500b1c44265d0fd67ba4afee3cd431e77192d1c1
SHA1 hash: b7ef2c81d6ae8023ff811278ec3e5bfba8fd905d
MD5 hash: 3303698d5190201a3f6dd7f1118251e0
humanhash: island-mexico-fix-black
File name:af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55
Download: download sample
Signature Chaos
Create hunting rule
File size:3'201'024 bytes
First seen:2024-11-01 21:31:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'855 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 24576:0wYAZ9hsTcbVPIw4OEezpOPoZzUt4MKom1W6USf5ZztnE/O/XZ/zhPw:zztbN5pZAJ0fJl8
Threatray 274 similar samples on MalwareBazaar
TLSH T1D4E5FA343AEB9019F2B3BF755BD476EBD95FBB333606A8591081034A4A13E81DE8193D
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
File icon (PE):PE icon
dhash icon d2a49892ebcadac4 (1 x Chaos)
Reporter johnk3r
Tags:brazil Chaos exe pix Ransomware v4

Intelligence

File Origin
# of uploads :
1
# of downloads :
556
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55
Verdict:
Malicious activity
Analysis date:
2024-11-01 21:32:04 UTC
Tags:
crypto-regex chaos ransomware
Link:
https://app.any.run/tasks/08f64153-79c9-4fba-bbaa-3ca417195aec

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=672548d88d23d904913295ee
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
Moving a recently created file
Changing a file
Reading critical registry keys
Modifies multiple files
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Unauthorized injection to a recently created process
Creating a file in the mass storage device
Stealing user critical data
Enabling autorun by creating a file
Encrypting user's files
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-security cmd lolbin lolbin ransomware wmic
Link:
https://www.filescan.io/uploads/672548d8e9959538ff3c2f17/reports/79ca4241-fa74-4416-92c9-bd730aa8fea1/overview
Verdict:
Malicious
Labled as:
Ransom.HydraCrypt.Generic
Link:
https://www.hybrid-analysis.com/sample/af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55
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/dce334e5-7274-49f2-8354-bb250c1f706c
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1547151
Signature
.NET source code contains very large strings
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
Deletes the backup plan of Windows
Drops PE files with benign system names
Found ransom note / readme
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
Overwrites Mozilla Firefox settings
Sigma detected: Delete shadow copy via WMIC
Sigma detected: Drops script at startup location
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Shadow Copies Deletion Using Operating Systems Utilities
Sigma detected: System File Execution Location Anomaly
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: 1547151 Sample: 3hYUt1z1gX.exe Startdate: 01/11/2024 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 11 other signatures 2->88 8 3hYUt1z1gX.exe 4 2->8         started        12 svchost.exe 2->12         started        14 wbengine.exe 3 2->14         started        16 4 other processes 2->16 process3 file4 74 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->74 dropped 76 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 8->76 dropped 78 C:\Users\user\AppData\...\3hYUt1z1gX.exe.log, CSV 8->78 dropped 102 Deletes shadow drive data (may be related to ransomware) 8->102 104 Drops PE files with benign system names 8->104 18 svchost.exe 3 55 8->18         started        106 Uses bcdedit to modify the Windows boot settings 12->106 22 cmd.exe 12->22         started        24 cmd.exe 12->24         started        26 cmd.exe 12->26         started        28 notepad.exe 12->28         started        108 Creates files inside the volume driver (system volume information) 14->108 signatures5 process6 file7 66 C:\Users\user\DesktopOWRVPQCCS.jpg, ASCII 18->66 dropped 68 C:\Users\user\Desktop\...\JDDHMPCDUJ.png, ASCII 18->68 dropped 70 C:\Users\user\Desktop\...70VWZAPQSQL.xlsx, ASCII 18->70 dropped 72 27 other malicious files 18->72 dropped 90 Multi AV Scanner detection for dropped file 18->90 92 May disable shadow drive data (uses vssadmin) 18->92 94 Deletes shadow drive data (may be related to ransomware) 18->94 100 3 other signatures 18->100 30 cmd.exe 1 18->30         started        33 cmd.exe 1 18->33         started        35 cmd.exe 1 18->35         started        37 notepad.exe 18->37         started        39 vssadmin.exe 22->39         started        41 conhost.exe 22->41         started        43 WMIC.exe 22->43         started        96 Uses bcdedit to modify the Windows boot settings 24->96 45 3 other processes 24->45 98 Deletes the backup plan of Windows 26->98 47 2 other processes 26->47 signatures8 process9 signatures10 110 May disable shadow drive data (uses vssadmin) 30->110 112 Deletes shadow drive data (may be related to ransomware) 30->112 114 Uses bcdedit to modify the Windows boot settings 30->114 49 vssadmin.exe 1 30->49         started        52 WMIC.exe 1 30->52         started        54 conhost.exe 30->54         started        56 bcdedit.exe 9 1 33->56         started        58 bcdedit.exe 8 1 33->58         started        60 conhost.exe 33->60         started        116 Deletes the backup plan of Windows 35->116 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/af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55/
Threat name:
ByteCode-MSIL.Ransomware.HydraCrypt
Create hunting rule
Status:
Malicious
First seen:
2024-10-31 22:40:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
34 of 38 (89.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=v4hci6a62nud6bg5q2tbnyyusdzwylnezo2p3xdw566q7rhrlvkq._file
Verdict:
malicious
Label(s):
genericransomware
Create hunting rule
chaos
Create hunting rule
Similar samples:
2e8af1ad4bb1e9f1bfdd3a04bf28363bbcdb3653e6aa4864f61b09c050378d51
Chaos
38f792a175c366b53407143da8c13ea2f1d3600b00ef8e8f6ec7e0ef79dcb6c0
Chaos
524a898e18999ceac864dbac5b85fa2f14392e389b3c32f77d58e2a89cdf01c4
Chaos
a54a38a9aab0bde31b2065d8b88a8e6569cc66c3f6137379b6b5a62361c319f0
Chaos
af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55
Chaos
error
Chaos
+ 264 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/241101-1gfzhswdnn/
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/3fe8bda8-499b-4d29-a78b-e49921d515eb
Unpacked files
SH256 hash:
af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55
MD5 hash:
3303698d5190201a3f6dd7f1118251e0
SHA1 hash:
b7ef2c81d6ae8023ff811278ec3e5bfba8fd905d
Detections:
ChaosRansomware
Create hunting rule
Link:
https://www.unpac.me/results/989b7edc-ba05-4e45-bd14-71e982a651ad/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/af0e24781ed3/report/overview.html
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/af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55

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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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.

  
X
https://x.com/johnk3r/status/1852195723808268532

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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