MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a54a38a9aab0bde31b2065d8b88a8e6569cc66c3f6137379b6b5a62361c319f0. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a54a38a9aab0bde31b2065d8b88a8e6569cc66c3f6137379b6b5a62361c319f0
SHA3-384 hash: e2f818d6b7b619edbb49b82977aa2775dbd32ad0d2abc5409ae1739973b323903b7f797999bb012c8b781eb38c342cdb
SHA1 hash: 99668a82a34ec17340fccecbc2ef0985b84704a0
MD5 hash: 3dc9bad7720a01598aa14e55baca7413
humanhash: edward-hotel-violet-sodium
File name:quantum.exe
Download: download sample
Signature Chaos
Create hunting rule
File size:427'520 bytes
First seen:2024-08-03 21:20:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'753 x AgentTesla, 19'660 x Formbook, 12'250 x SnakeKeylogger)
ssdeep 6144:Jr9Zzp4MmFrxodIFRfiM6baHcgrRS8gPFYTdOjbGXypU5:Jp4MmxxhfiMzcyRQFYTdqTa
Threatray 268 similar samples on MalwareBazaar
TLSH T18494B6343DEB802DF2737F7D9BE4B596A96EFA222F0B5459106203854B23E85EC8153D
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)
File icon (PE):PE icon
dhash icon 0080e030d0f0f6fc (1 x Chaos)
Reporter nickkuechel
Tags:Chaos exe Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
843
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
quantum.exe
Verdict:
Malicious activity
Analysis date:
2024-08-03 09:40:11 UTC
Tags:
ransomware stealer crypto-regex chaos
Link:
https://app.any.run/tasks/aa2fbbca-e6ca-418b-80e2-f3747ebd24a5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66ae9f43037b02d0daed6024
Tags:
Generic Ransomware Stealth Trojan Heur
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
Modifying an executable 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 ransomware wmic
Link:
https://www.filescan.io/uploads/66ae9f4f4c5c17942a8256b1/reports/c3b65086-bd8f-42cf-8fe3-021efe17eeb9/overview
Verdict:
Malicious
Labled as:
Ransom.Imps.Generic
Link:
https://www.hybrid-analysis.com/sample/a54a38a9aab0bde31b2065d8b88a8e6569cc66c3f6137379b6b5a62361c319f0
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/58fdd63e-b063-4e1c-a228-6079181d76ef
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.spyw.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1487343
Signature
.NET source code contains very large strings
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Deletes shadow drive data (may be related to ransomware)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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: Drops script at startup location
Tries to harvest and steal browser information (history, passwords, etc)
Writes a notice file (html or txt) to demand a ransom
Yara detected Chaos Ransomware
Yara detected RansomwareGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1487343 Sample: quantum.exe Startdate: 03/08/2024 Architecture: WINDOWS Score: 100 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus / Scanner detection for submitted sample 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 7 other signatures 2->45 7 quantum.exe 4 2->7         started        11 quantum.exe 4 2->11         started        13 OpenWith.exe 2->13         started        15 notepad.exe 2->15         started        process3 file4 33 C:\Users\user\AppData\Roaming\quantum.exe, PE32 7->33 dropped 35 C:\Users\user\...\quantum.exe:Zone.Identifier, ASCII 7->35 dropped 37 C:\Users\user\AppData\...\quantum.exe.log, CSV 7->37 dropped 55 Deletes shadow drive data (may be related to ransomware) 7->55 17 quantum.exe 3 54 7->17         started        21 notepad.exe 11->21         started        signatures5 process6 file7 25 C:\Users\user\Saved Games\welp.txt, ASCII 17->25 dropped 27 C:\Users\user\OneDrive\welp.txt, ASCII 17->27 dropped 29 C:\Users\user\Favorites\welp.txt, ASCII 17->29 dropped 31 37 other malicious files 17->31 dropped 47 Multi AV Scanner detection for dropped file 17->47 49 Deletes shadow drive data (may be related to ransomware) 17->49 51 Writes a notice file (html or txt) to demand a ransom 17->51 53 3 other signatures 17->53 23 notepad.exe 17->23         started        signatures8 process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a54a38a9aab0bde31b2065d8b88a8e6569cc66c3f6137379b6b5a62361c319f0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a54a38a9aab0bde31b2065d8b88a8e6569cc66c3f6137379b6b5a62361c319f0/
Threat name:
ByteCode-MSIL.Ransomware.Sorry
Create hunting rule
Status:
Malicious
First seen:
2024-08-03 12:33:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
35 of 38 (92.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uvfdrknkwc66ggzamxmlrcuomvu4yzwd6yjxg6nwwwtcgyoddhya._file
Verdict:
malicious
Similar samples:
1f57dcbcb1684ee5f037249fe8f48b48776ecb3c67bd726485cccc6bf1347541
Chaos
524a898e18999ceac864dbac5b85fa2f14392e389b3c32f77d58e2a89cdf01c4
Chaos
a54a38a9aab0bde31b2065d8b88a8e6569cc66c3f6137379b6b5a62361c319f0
Chaos
ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82
Chaos
e48bd2f16b53a3630f3fca69d0d236d15bc23b08754d980bd29b15841b0fdf14
Chaos
f871efc0cdf5446908e436de9ed821ff0ec5e217c50c16e69e3d0e83f6257f0f
Chaos
+ 258 additional samples on MalwareBazaar
Result
Malware family:
chaos
Create hunting rule
Score:
  10/10
Tags:
family:chaos ransomware spyware stealer
Link:
https://tria.ge/reports/240803-z7bbaazfne/
Behaviour
Modifies registry class
Opens file in notepad (likely ransom note)
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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
Chaos
Chaos Ransomware
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7f5533af-8281-4267-93ae-09e9446d1dec
Unpacked files
SH256 hash:
a54a38a9aab0bde31b2065d8b88a8e6569cc66c3f6137379b6b5a62361c319f0
MD5 hash:
3dc9bad7720a01598aa14e55baca7413
SHA1 hash:
99668a82a34ec17340fccecbc2ef0985b84704a0
Detections:
ChaosRansomware
Create hunting rule
Link:
https://www.unpac.me/results/f41aeede-474a-4d7a-91b5-891e53f16e9c/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a54a38a9aab0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
SNC
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a54a38a9aab0bde31b2065d8b88a8e6569cc66c3f6137379b6b5a62361c319f0

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: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

Comments