MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2169f4931cb7ddeffcb816a487491c0df2035162f3b6652352b42dbceaace7fd. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
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SHA256 hash: 2169f4931cb7ddeffcb816a487491c0df2035162f3b6652352b42dbceaace7fd
SHA3-384 hash: d05f3b9648dbb40acbf34ca2d37bf5215fc04a701205ceac5804090f303dc6538720bf43e7706c7a947a63bc36d34d3b
SHA1 hash: 7c0b53010f5684cfdda5e2c101ec2602f75db79d
MD5 hash: 3330316c5956f83f0009d68cb63c636d
humanhash: queen-cold-september-comet
File name:Chaos Ransomware2.exe
Download: download sample
Signature Chaos
Create hunting rule
File size:24'064 bytes
First seen:2021-08-04 13:00:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 384:WI3Mg/bqo2mcxtivpewx08Wd3sJBr91CYExb58e7Y:1qo2ptMpp08Wd3kBr9HExb+e0
Threatray 1 similar samples on MalwareBazaar
TLSH T1B4B2C51867FA4A39F6FB1F786D7220509B75BC57EC3EC74C188A004D0922B9C89A1B77
Reporter JAMESWT_WT
Tags:Chaos exe Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
346
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Chaos Ransomware2.exe
Verdict:
Suspicious activity
Analysis date:
2021-08-04 13:05:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/76a1d1f7-81d4-4f50-bc9f-406b7babc2e0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
MMLocker
Create hunting rule
Link:
https://www.capesandbox.com/analysis/176331/
Detection(s):
Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Launching the default Windows debugger (dwwin.exe)
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c1b4c535-acbc-4454-9cec-af23a685827f
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/826850
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Machine Learning detection for dropped file
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)
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Drops script at startup location
Sigma detected: Modification of Boot Configuration
Sigma detected: Shadow Copies Deletion Using Operating Systems Utilities
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
Sigma detected: WannaCry Ransomware
Uses bcdedit to modify the Windows boot settings
Writes a notice file (html or txt) to demand a ransom
Yara detected Chaos Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 459281 Sample: Chaos Ransomware2.exe Startdate: 04/08/2021 Architecture: WINDOWS Score: 100 66 Sigma detected: WannaCry Ransomware 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Antivirus / Scanner detection for submitted sample 2->70 72 10 other signatures 2->72 8 Chaos Ransomware2.exe 4 2->8         started        11 wbengine.exe 3 2->11         started        14 svchost.exe 2->14         started        16 4 other processes 2->16 process3 dnsIp4 56 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->56 dropped 58 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 8->58 dropped 60 C:\Users\user\...\Chaos Ransomware2.exe.log, ASCII 8->60 dropped 19 svchost.exe 47 8->19         started        90 Creates files inside the volume driver (system volume information) 11->90 62 C:\Users\user\AppData\...\svchost.exe.log, ASCII 14->62 dropped 64 192.168.2.1 unknown unknown 16->64 file5 signatures6 process7 file8 48 C:\Users\user\Pictures\read_it.txt, ASCII 19->48 dropped 50 C:\Users\user\Pictures\...\read_it.txt, ASCII 19->50 dropped 52 C:\Users\user\Music\read_it.txt, ASCII 19->52 dropped 54 11 other malicious files 19->54 dropped 74 Antivirus detection for dropped file 19->74 76 Machine Learning detection for dropped file 19->76 78 Deletes shadow drive data (may be related to ransomware) 19->78 80 3 other signatures 19->80 23 cmd.exe 1 19->23         started        26 cmd.exe 1 19->26         started        28 cmd.exe 1 19->28         started        30 notepad.exe 19->30         started        signatures9 process10 signatures11 82 May disable shadow drive data (uses vssadmin) 23->82 84 Deletes shadow drive data (may be related to ransomware) 23->84 86 Uses bcdedit to modify the Windows boot settings 23->86 32 WMIC.exe 1 23->32         started        34 conhost.exe 23->34         started        36 vssadmin.exe 1 23->36         started        38 bcdedit.exe 1 26->38         started        40 bcdedit.exe 1 26->40         started        42 conhost.exe 26->42         started        88 Deletes the backup plan of Windows 28->88 44 conhost.exe 28->44         started        46 wbadmin.exe 3 28->46         started        process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2169f4931cb7ddeffcb816a487491c0df2035162f3b6652352b42dbceaace7fd/
Threat name:
ByteCode-MSIL.Ransomware.ApisCryptor
Create hunting rule
Status:
Malicious
First seen:
2021-08-04 13:01:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
32 of 46 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=efu7jey4w7o677fyc2siosi4bxzagulc6o3gki2swqw3z2vm476q._file
Verdict:
unknown
Similar samples:
d09b875ead838ec256b863b5e8e252d5bca9172b5479b00699ff31b4d745c92b
Chaos
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion ransomware spyware stealer
Link:
https://tria.ge/reports/210804-ktmt9gx2e2/
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 behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops desktop.ini file(s)
Drops startup file
Reads user/profile data of web browsers
Deletes backup catalog
Executes dropped EXE
Modifies extensions of user files
Deletes shadow copies
Modifies boot configuration data using bcdedit
Unpacked files
SH256 hash:
2169f4931cb7ddeffcb816a487491c0df2035162f3b6652352b42dbceaace7fd
MD5 hash:
3330316c5956f83f0009d68cb63c636d
SHA1 hash:
7c0b53010f5684cfdda5e2c101ec2602f75db79d
Link:
https://www.unpac.me/results/e26d6301-5bf6-4883-a4b5-6f7fc5563dce/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/2169f4931cb7ddeffcb816a487491c0df2035162f3b6652352b42dbceaace7fd

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:Destructive_Ransomware_Gen1
Create hunting rule
Author:Florian Roth
Description:Detects destructive malware
Reference:http://blog.talosintelligence.com/2018/02/olympic-destroyer.html
Rule name:INDICATOR_SUSPICIOUS_GENRansomware
Create hunting rule
Author:ditekSHen
Description:detects command variations typically used by ransomware
Rule name:pe_imphash
Create hunting rule
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/176331/

Comments