MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 994ab65cf9072f47b962e271c7b5990a5552ca15de1d35b4f2c21b4c698de2ea. 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: 994ab65cf9072f47b962e271c7b5990a5552ca15de1d35b4f2c21b4c698de2ea
SHA3-384 hash: 7cf5b1e882cfbf8134d98e2b7098b5890fc5b06d72949477b28151073f6953aa34b58d1a44e76daab28c39f53d34276e
SHA1 hash: db8835032d0dcce4b9899671bfa4d8e3ddfc825c
MD5 hash: 50c8525d4becd3e68424f68eae6e6983
humanhash: pip-oven-nevada-minnesota
File name:994ab65cf9072f47b962e271c7b5990a5552ca15de1d35b4f2c21b4c698de2ea
Download: download sample
Signature Chaos
Create hunting rule
File size:194'560 bytes
First seen:2024-11-02 16:20:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'856 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 768:/KHkATXfZLdQeIOi1H88pup5n5uwESIL+aOppppOFb0xRbNqmM9dCgKcpdYRHM/W:j4Xfx+H8hpPuw2qieK9dC3cTKtswB
Threatray 9 similar samples on MalwareBazaar
TLSH T101145A1139ACC4D7D23A0978DF95C8F389067C6EEAF0091B3AE7BF5E3AF12656015219
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 37531b133313777d (1 x Chaos)
Reporter JAMESWT_WT
Tags:Chaos exe Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
482
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
994ab65cf9072f47b962e271c7b5990a5552ca15de1d35b4f2c21b4c698de2ea.exe
Verdict:
Malicious activity
Analysis date:
2024-11-02 16:25:02 UTC
Tags:
crypto-regex
Link:
https://app.any.run/tasks/8caff872-869e-4c1d-8aa1-5d51c93198d8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Ransomware.Hiddentear-9940921-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6726517d49e92a05dde27400
Tags:
ransomware autorun dropper micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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 window
Launching a process
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Enabling autorun by creating a file
Encrypting user's files
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/672651737aa72be47553bb13/reports/047edb85-c6bb-4cd4-af90-64a32e9b53a8/overview
Verdict:
Malicious
Labled as:
Ransom.Imps.Generic
Link:
https://www.hybrid-analysis.com/sample/994ab65cf9072f47b962e271c7b5990a5552ca15de1d35b4f2c21b4c698de2ea
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/bf919e3e-99de-4a28-9618-618e95fade8f
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
rans.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1547557
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops PE files with benign system names
Found ransom note / readme
Machine Learning detection for dropped file
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
Sigma detected: Drops script at startup location
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: System File Execution Location Anomaly
Yara detected Chaos Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1547557 Sample: UiAp2PqPln.exe Startdate: 02/11/2024 Architecture: WINDOWS Score: 100 40 time.windows.com 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus / Scanner detection for submitted sample 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 7 other signatures 2->48 8 UiAp2PqPln.exe 4 2->8         started        12 svchost.exe 5 2->12         started        14 svchost.exe 1 2->14         started        16 2 other processes 2->16 signatures3 process4 file5 34 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->34 dropped 36 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 8->36 dropped 38 C:\Users\user\AppData\...\UiAp2PqPln.exe.log, CSV 8->38 dropped 58 Drops PE files with benign system names 8->58 18 svchost.exe 4 19 8->18         started        22 notepad.exe 12->22         started        signatures6 process7 file8 26 C:\Users\user\Downloads\read_it.txt, ASCII 18->26 dropped 28 C:\Users\user\Desktop\...\QFAPOWPAFG.xlsx, ASCII 18->28 dropped 30 C:\Users\user\Desktop\HMPPSXQPQV.xlsx, ASCII 18->30 dropped 32 2 other malicious files 18->32 dropped 50 Antivirus detection for dropped file 18->50 52 Multi AV Scanner detection for dropped file 18->52 54 Machine Learning detection for dropped file 18->54 56 Modifies existing user documents (likely ransomware behavior) 18->56 24 notepad.exe 5 18->24         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/994ab65cf9072f47b962e271c7b5990a5552ca15de1d35b4f2c21b4c698de2ea
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/994ab65cf9072f47b962e271c7b5990a5552ca15de1d35b4f2c21b4c698de2ea/
Threat name:
ByteCode-MSIL.Ransomware.Ramsil
Create hunting rule
Status:
Malicious
First seen:
2024-11-02 16:19:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tfflmxhza4xupolc4jy4pnmzbjkvfsqv3yotlnhsyinuy2mn4lva._file
Verdict:
malicious
Label(s):
chaos
Create hunting rule
Similar samples:
47490e9f123bab0e8791b244a5b5122e8b3167cd2e51682296c9519c20f70b9e
Chaos
6618a320911b72fdaf28da68727b5cad778a391838bb3399b2ae048b960af7a5
Chaos
994ab65cf9072f47b962e271c7b5990a5552ca15de1d35b4f2c21b4c698de2ea
Chaos
error
Chaos
f47a386a562660d0f2d6d266e60f531dcfc48a9c6724601b743a1888f2ec4173
Chaos
f6378ea5530236bb12b1fe919d28ad4eaded728e5a690ddfeaeef06093a39b98
Chaos
Result
Malware family:
chaos
Create hunting rule
Score:
  10/10
Tags:
family:chaos persistence ransomware
Link:
https://tria.ge/reports/241102-ttm52aymcz/
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
Adds Run key to start application
Drops desktop.ini file(s)
Checks computer location settings
Drops startup file
Executes dropped EXE
Chaos
Chaos Ransomware
Chaos family
Verdict:
Malicious
Tags:
ransomware chaos
YARA:
MALWARE_Win_Chaos
Link:
https://app.threat.zone/submission/9d92c19f-1fc4-4525-9665-4722db99feed
Unpacked files
SH256 hash:
994ab65cf9072f47b962e271c7b5990a5552ca15de1d35b4f2c21b4c698de2ea
MD5 hash:
50c8525d4becd3e68424f68eae6e6983
SHA1 hash:
db8835032d0dcce4b9899671bfa4d8e3ddfc825c
Detections:
ChaosRansomware
Create hunting rule
Link:
https://www.unpac.me/results/57061955-229a-4a40-a2ec-c01517acc093/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.77
Link:
https://yomi.yoroi.company/submissions/994ab65cf9072f47b962e271c7b5990a5552ca15de1d35b4f2c21b4c698de2ea

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: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.

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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