MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b103fc649787eb1f6121df8174d0f16aaac736fb53f5f078d312871189285956. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b103fc649787eb1f6121df8174d0f16aaac736fb53f5f078d312871189285956
SHA3-384 hash: 6c8078146f27b65651bee0d2d6d3258e1067dee98e7c0ef3987a572952ad76c7f9ba8cc0d8d0cbc04a6bd0491c2bfae7
SHA1 hash: b5ab794dd5821d08f7ecd860ba7975a6644dd46d
MD5 hash: 9eb958c38bd3d39c55b009f9a200f42f
humanhash: solar-carolina-missouri-wolfram
File name:svchost.exe
Download: download sample
Signature Chaos
Create hunting rule
File size:62'464 bytes
First seen:2021-09-02 20:16:26 UTC
Last seen:2023-05-08 17:49:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:Lo2RzBFN0Yr9dEmZ6sIF8ahn62Zq8qWwESmNHEgLufKOUmoEE4:LoMDN0Yr9dEm+yBIUEbNHEgLuiOUmoEl
Threatray 4 similar samples on MalwareBazaar
TLSH T14A5392243AFF5028F2B3AF795FE474969E6FF7633A0A905D2051034A4B23E81DD91639
Reporter James_inthe_box
Tags:Chaos exe

Intelligence

File Origin
# of uploads :
7
# of downloads :
255
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Twitch Follow Bot.exe
Verdict:
Malicious activity
Analysis date:
2021-09-02 20:10:09 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/7574bd29-cdd6-45d3-b993-35bcb247756d

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/184963/
Detection(s):
Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the default Windows debugger (dwwin.exe)
Creating a process with a hidden window
Sending a UDP request
Malware family:
CHAOS Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/28d81c9f-8c14-4b8b-94df-3c788918bc49
Result
Threat name:
Unknown
Detection:
malicious
Classification:
rans.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/844339
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Deletes shadow drive data (may be related to ransomware)
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)
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: System File Execution Location Anomaly
Writes a notice file (html or txt) to demand a ransom
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b103fc649787eb1f6121df8174d0f16aaac736fb53f5f078d312871189285956/
Threat name:
ByteCode-MSIL.Ransomware.ApisCryptor
Create hunting rule
Status:
Malicious
First seen:
2021-09-02 20:16:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 27 (81.48%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=web7yzexq7vr6yjb36axjuhrnkvmonx3kp27a6gtckdrdcjilfla._file
Verdict:
unknown
Similar samples:
2169f4931cb7ddeffcb816a487491c0df2035162f3b6652352b42dbceaace7fd
Chaos
d09b875ead838ec256b863b5e8e252d5bca9172b5479b00699ff31b4d745c92b
Chaos
Result
Malware family:
n/a
Score:
  10/10
Tags:
ransomware spyware stealer
Link:
https://tria.ge/reports/210902-y2pfaaegbj/
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)
Drops startup file
Reads user/profile data of web browsers
Executes dropped EXE
Modifies extensions of user files
Unpacked files
SH256 hash:
b103fc649787eb1f6121df8174d0f16aaac736fb53f5f078d312871189285956
MD5 hash:
9eb958c38bd3d39c55b009f9a200f42f
SHA1 hash:
b5ab794dd5821d08f7ecd860ba7975a6644dd46d
Link:
https://www.unpac.me/results/5edf1ce6-bc04-4a72-8a61-728c7e665b07/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b103fc649787/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/b103fc649787eb1f6121df8174d0f16aaac736fb53f5f078d312871189285956

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/184963/

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