MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 47490e9f123bab0e8791b244a5b5122e8b3167cd2e51682296c9519c20f70b9e. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 47490e9f123bab0e8791b244a5b5122e8b3167cd2e51682296c9519c20f70b9e
SHA3-384 hash: a06a028fbaf3aac574a5795cff550e3ba110743a6b7a184e144c070bbe9b967e18bccb60c7dfbb73a8b699d941353084
SHA1 hash: 02143c7dda3f4b53f10fd533d44409d4241df3fe
MD5 hash: 34570f7d9754c9a9cd5ef8cbca7f2fba
humanhash: beer-social-charlie-spaghetti
File name:34570F7D9754C9A9CD5EF8CBCA7F2FBA
Download: download sample
Signature Chaos
Create hunting rule
File size:21'504 bytes
First seen:2022-11-30 16:00:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'859 x AgentTesla, 19'789 x Formbook, 12'305 x SnakeKeylogger)
ssdeep 384:uCul2ebWbqG2vHzk87TX/7/T89d3wn7gMuh5p/D3Rq:VXqHT/XXjugn0971
Threatray 122 similar samples on MalwareBazaar
TLSH T1DEA2180177F94639E2FF1F7818F312118B7ABD57E97AD71E2CC8415D1C22B488AA0766
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 10c8c26230583623 (1 x Chaos)
Reporter Merlin_Azel
Tags:Chaos exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
203
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
WeedOptimalizer.exe
Verdict:
Malicious activity
Analysis date:
2021-11-17 14:02:31 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/a52f87ee-9709-4704-86a8-ab5eb99fbcf3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Chaos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/340594/
Detection(s):
Win.Ransomware.Hiddentear-9940921-0
Create hunting rule

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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63877e3f8a1bf55a249cbc1f/reports/3974a7d3-9971-4aac-bc9e-8668e5e22d17/overview
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.
Result
Threat name:
Chaos, TrojanRansom
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1124253
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Changes security center settings (notifications, updates, antivirus, firewall)
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
Query firmware table information (likely to detect VMs)
Sigma detected: Drops script at startup location
Writes a notice file (html or txt) to demand a ransom
Yara detected Chaos Ransomware
Yara detected TrojanRansom
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 756976 Sample: 0GZ2TKHVei.exe Startdate: 30/11/2022 Architecture: WINDOWS Score: 100 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus / Scanner detection for submitted sample 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 5 other signatures 2->52 7 0GZ2TKHVei.exe 4 2->7         started        11 svchost.exe 2->11         started        13 svchost.exe 3 2->13         started        15 9 other processes 2->15 process3 dnsIp4 38 C:\Users\user\AppData\Roaming\svchost.exe, PE32 7->38 dropped 40 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 7->40 dropped 42 C:\Users\user\AppData\...\0GZ2TKHVei.exe.log, CSV 7->42 dropped 62 Drops PE files with benign system names 7->62 18 svchost.exe 4 17 7->18         started        64 Changes security center settings (notifications, updates, antivirus, firewall) 11->64 22 MpCmdRun.exe 11->22         started        66 Query firmware table information (likely to detect VMs) 13->66 44 192.168.2.1 unknown unknown 15->44 24 notepad.exe 15->24         started        file5 signatures6 process7 file8 30 C:\Users\user\Links\read_it.txt, ASCII 18->30 dropped 32 C:\Users\user\Downloads\read_it.txt, ASCII 18->32 dropped 34 C:\Users\user\Documents\read_it.txt, ASCII 18->34 dropped 36 11 other malicious files 18->36 dropped 54 Antivirus detection for dropped file 18->54 56 Multi AV Scanner detection for dropped file 18->56 58 Machine Learning detection for dropped file 18->58 60 2 other signatures 18->60 26 notepad.exe 18->26         started        28 conhost.exe 22->28         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/47490e9f123bab0e8791b244a5b5122e8b3167cd2e51682296c9519c20f70b9e/
Threat name:
ByteCode-MSIL.Ransomware.FileCryptor
Create hunting rule
Status:
Malicious
First seen:
2021-11-17 08:25:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i5eq5hyshovq5b4rwjcklnisf2ftcz6nfziwqiuwzfizyihxbopa._file
Verdict:
malicious
Similar samples:
37dc63f026d6c8a67b66f331856a09236c2cd06bb7c89360e247e8f557100e2d
Chaos
64fcafbb7573cfdf054972cdd996572fa925c0a4ef9b95297cd9ba92f71a1d35
Chaos
6618a320911b72fdaf28da68727b5cad778a391838bb3399b2ae048b960af7a5
Chaos
bd6bf8005075ea1cc5d137bff7d8d4a30eec803e71f0bc6bcd274540433ec829
Chaos
ce58d9e1741ca1f58f0880465ff4e322c9036293d2dba8947cd65e2153f070e4
Chaos
f47a386a562660d0f2d6d266e60f531dcfc48a9c6724601b743a1888f2ec4173
Chaos
f6378ea5530236bb12b1fe919d28ad4eaded728e5a690ddfeaeef06093a39b98
Chaos
+ 112 additional samples on MalwareBazaar
Result
Malware family:
chaos
Create hunting rule
Score:
  10/10
Tags:
family:chaos persistence ransomware
Link:
https://tria.ge/reports/221130-tfqc8sgg7v/
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
Modifies extensions of user files
Chaos
Chaos Ransomware
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/68c8a007-637a-4770-851b-65edf85c200d
Unpacked files
SH256 hash:
47490e9f123bab0e8791b244a5b5122e8b3167cd2e51682296c9519c20f70b9e
MD5 hash:
34570f7d9754c9a9cd5ef8cbca7f2fba
SHA1 hash:
02143c7dda3f4b53f10fd533d44409d4241df3fe
Link:
https://www.unpac.me/results/bfdb2add-fda9-4aa4-88e4-bf10eccc927e/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/47490e9f123b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/47490e9f123bab0e8791b244a5b5122e8b3167cd2e51682296c9519c20f70b9e

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/340594/

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