MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aaf3cf701b06ca873f9fdbf5b4ba33722c6ecea49316a344df35926a45bce1fb. 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: 15


Intelligence 15 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aaf3cf701b06ca873f9fdbf5b4ba33722c6ecea49316a344df35926a45bce1fb
SHA3-384 hash: bb46362aa361390d898607f79fb3ca833fb008a77af9f7aadba0b458ac905dd623cc7904273401239bed81eea333b35d
SHA1 hash: 11fa3fc864d53a90cd4ed3c4e3e3aba3c7890fae
MD5 hash: f257d37c05d29e725071a900ef49f1c9
humanhash: queen-september-florida-washington
File name:tmk.scr
Download: download sample
Signature Chaos
Create hunting rule
File size:551'424 bytes
First seen:2024-09-04 12:17:43 UTC
Last seen:2025-04-30 06:23:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'855 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 3072:6XpAi2YcRVm16Pn6n0H7GMgXuD//bFLAkC8htEyR/x5Zt19r0d/rFLjZkJ:6XpAiWm16yaGMVFLQmEFFL2
TLSH T165C48F006EF0461ED32412B4D36BD83C9BF6AD733522D2153AED5E8B7B67760821376A
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 000000f2d0000000 (1 x Yashma, 1 x Chaos)
Reporter JAMESWT_WT
Tags:Chaos exe master-repogen-vercel-app

Intelligence

File Origin
# of uploads :
3
# of downloads :
399
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://master-repogen.vercel.app/file/tmk.scr
Verdict:
Malicious activity
Analysis date:
2024-08-28 15:26:24 UTC
Tags:
crypto-regex chaos ransomware stealer
Link:
https://app.any.run/tasks/5e3bf1b2-5870-4d69-8eeb-32cf47cc6ff7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
ditekSHen.MALWARE.Win.Trojan.TRAT.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d850018e12b8124ac9330f
Tags:
Ryukcrypt
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-security chaos crypter masquerade packed ransomware ransomware ransomx veeam
Link:
https://www.filescan.io/uploads/66d84ffee9db3734a22831af/reports/40c0868d-5ce9-422a-934d-44cde8dfc71b/overview
Verdict:
Malicious
Labled as:
Ransom.Imps.Generic
Link:
https://www.hybrid-analysis.com/sample/aaf3cf701b06ca873f9fdbf5b4ba33722c6ecea49316a344df35926a45bce1fb
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:
Yashma Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/86c2267d-7aca-40a2-9206-ee3e2c016f5a
Result
Threat name:
Chaos, TrojanRansom
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1504080
Signature
Deletes shadow drive data (may be related to ransomware)
Found Tor onion address
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Yara detected Chaos Ransomware
Yara detected TrojanRansom
Behaviour
Behavior Graph:
Download SVG
Score:
78%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/aaf3cf701b06ca873f9fdbf5b4ba33722c6ecea49316a344df35926a45bce1fb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aaf3cf701b06ca873f9fdbf5b4ba33722c6ecea49316a344df35926a45bce1fb/
Threat name:
ByteCode-MSIL.Ransomware.RyukCrypt
Create hunting rule
Status:
Malicious
First seen:
2024-07-31 22:10:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
33
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vlz464a3a3fiop473p23jortoiwg5tvesmlkgrg7gwjgurn44h5q._file
Verdict:
malicious
Result
Malware family:
chaos
Create hunting rule
Score:
  10/10
Tags:
family:chaos ransomware
Link:
https://tria.ge/reports/240904-pglzzs1drb/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Chaos
Chaos Ransomware
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8b20ebb0-e2a3-47c9-a3c1-259f280f597c
Unpacked files
SH256 hash:
00a48c79f453fa1b13c3f37feae3711c7ec35fd82b7bde2432d8c56ccdaf544d
MD5 hash:
f30ce6004e05994ffd89124c5f0290df
SHA1 hash:
f797b573c65b1a0fe896fc529cb764da41617026
Link:
https://www.unpac.me/results/6bdb5c93-91d8-45da-8efb-3db9c7f8e101/
SH256 hash:
aaf3cf701b06ca873f9fdbf5b4ba33722c6ecea49316a344df35926a45bce1fb
MD5 hash:
f257d37c05d29e725071a900ef49f1c9
SHA1 hash:
11fa3fc864d53a90cd4ed3c4e3e3aba3c7890fae
Link:
https://www.unpac.me/results/6bdb5c93-91d8-45da-8efb-3db9c7f8e101/
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/aaf3cf701b06ca873f9fdbf5b4ba33722c6ecea49316a344df35926a45bce1fb

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:Base64_decoding
Create hunting rule
Author:iam-py-test
Description:Detect scripts which are decoding base64 encoded data (mainly Python, may apply to other languages)
Rule name:Detect_Malicious_VBScript_Base64
Create hunting rule
Author:daniyyell
Description:Detects malicious VBScript patterns, including Base64 decoding, file operations, and PowerShell.
Rule name:has_telegram_urls
Create hunting rule
Author:Aaron DeVera<aaron@backchannel.re>
Description:Detects Telegram URLs
Rule name:INDICATOR_KB_ID_Ransomware_Chaos
Create hunting rule
Author:ditekShen
Description:Detects files referencing identities associated with Chaos ransomware
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:NET
Create hunting rule
Author:malware-lu
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.

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
CHECK_TRUST_INFORequires Elevated Execution (level:highestAvailable)high

Comments