MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3cbcf3dee3ab20b3bdc0ac1e536746f1f6ea63a8c242244d495400a88327de18. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
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SHA256 hash: 3cbcf3dee3ab20b3bdc0ac1e536746f1f6ea63a8c242244d495400a88327de18
SHA3-384 hash: c23b41629848b0b8c7a291a54843865ff73faf432430729125acd8fb37b44c7747cf2f7e583ba57b4b8eaec190ea7bbe
SHA1 hash: cd127d6ae09b5add9d2c853e3a4e1a24f60e2cf6
MD5 hash: fb79473241a92f1c04b5bc7ed0cfb2bf
humanhash: lamp-four-emma-sweet
File name:3cbcf3dee3ab20b3bdc0ac1e536746f1f6ea63a8c242244d495400a88327de18
Download: download sample
Signature Chaos
Create hunting rule
File size:998'400 bytes
First seen:2022-12-03 18:00:26 UTC
Last seen:2022-12-14 20:38:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 12288:9mQUSWRuFedHplaBZsazhevXEXp7SNHTdlXqvG3V2r63TwE8ltk1TKjx8fhx+gFK:8QdBr2SSukAEhJWv3306Iy
Threatray 3'481 similar samples on MalwareBazaar
TLSH T170250B2439FB9019B1B3FF625FD8B5DBDD6FB7333606A45A209003474613A81DE9263A
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)
Reporter petikvx
Tags:Chaos exe Ransomware

Intelligence

File Origin
# of uploads :
2
# of downloads :
567
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3cbcf3dee3ab20b3bdc0ac1e536746f1f6ea63a8c242244d495400a88327de18
Verdict:
Malicious activity
Analysis date:
2022-12-03 18:01:54 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/4fe49583-859e-4306-b88c-0eb9d8d8ec69

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/342325/
Detection(s):
Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
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
Reading critical registry keys
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
cmd.exe packed
Link:
https://www.filescan.io/uploads/638b8edf04e0e79bdf409a5c/reports/d5c99438-6624-4831-a65a-e1db2d8c9b13/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.
Malware family:
CHAOS Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f425200e-e901-40cd-8a34-05664c8bbb2e
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1127165
Signature
.NET source code contains very large strings
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Delete shadow copy via WMIC
Sigma detected: Drops script at startup location
Uses bcdedit to modify the Windows boot settings
Yara detected Chaos Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 759889 Sample: fPfFOAkqfX.exe Startdate: 03/12/2022 Architecture: WINDOWS Score: 100 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus / Scanner detection for submitted sample 2->79 81 Multi AV Scanner detection for submitted file 2->81 83 6 other signatures 2->83 8 fPfFOAkqfX.exe 4 2->8         started        12 svchost.exe 6 2->12         started        14 wbengine.exe 2->14         started        16 6 other processes 2->16 process3 file4 71 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->71 dropped 73 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 8->73 dropped 75 C:\Users\user\AppData\...\fPfFOAkqfX.exe.log, CSV 8->75 dropped 101 Drops PE files with benign system names 8->101 18 svchost.exe 51 8->18         started        103 Deletes shadow drive data (may be related to ransomware) 12->103 105 Uses bcdedit to modify the Windows boot settings 12->105 22 cmd.exe 12->22         started        24 cmd.exe 12->24         started        26 cmd.exe 12->26         started        107 Creates files inside the volume driver (system volume information) 14->107 signatures5 process6 file7 63 C:\Users\user\Desktop\YPSIACHYXW.xlsx, ASCII 18->63 dropped 65 C:\Users\user\Desktop\...\WKXEWIOTXI.png, ASCII 18->65 dropped 67 C:\Users\user\Desktop\...\RAYHIWGKDI.jpg, ASCII 18->67 dropped 69 C:\Users\user\AppData\Roaming\...\svchost.url, MS 18->69 dropped 85 Antivirus detection for dropped file 18->85 87 Multi AV Scanner detection for dropped file 18->87 89 Machine Learning detection for dropped file 18->89 91 Modifies existing user documents (likely ransomware behavior) 18->91 28 cmd.exe 1 18->28         started        31 cmd.exe 1 18->31         started        33 cmd.exe 18->33         started        93 May disable shadow drive data (uses vssadmin) 22->93 95 Deletes shadow drive data (may be related to ransomware) 22->95 35 conhost.exe 22->35         started        37 vssadmin.exe 22->37         started        39 WMIC.exe 22->39         started        97 Uses bcdedit to modify the Windows boot settings 24->97 41 conhost.exe 24->41         started        43 2 other processes 24->43 99 Deletes the backup plan of Windows 26->99 45 2 other processes 26->45 signatures8 process9 signatures10 109 May disable shadow drive data (uses vssadmin) 28->109 111 Deletes shadow drive data (may be related to ransomware) 28->111 113 Uses bcdedit to modify the Windows boot settings 28->113 47 WMIC.exe 1 28->47         started        49 conhost.exe 28->49         started        51 vssadmin.exe 1 28->51         started        53 bcdedit.exe 8 1 31->53         started        55 bcdedit.exe 7 1 31->55         started        57 conhost.exe 31->57         started        115 Deletes the backup plan of Windows 33->115 59 conhost.exe 33->59         started        61 wbadmin.exe 33->61         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3cbcf3dee3ab20b3bdc0ac1e536746f1f6ea63a8c242244d495400a88327de18/
Threat name:
ByteCode-MSIL.Ransomware.FileCoder
Create hunting rule
Status:
Malicious
First seen:
2022-12-03 17:22:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
26 of 26 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hs6phxxdvmqlhpoavqpfgz2g6h3ouy5iyjbcitkjkqakrazh3yma._file
Verdict:
malicious
Similar samples:
058a8bec8f58c3fc1d7b530d83499db343896d146b4b01c1da452a159ab1a90a
Chaos
0a00b6668696bf62e14ea1acaa855397730e24bd66b594d9602bee37c2de2e6e
Chaos
4b922409207ad4662325f16ba79bb9ff2a7f408deee9ea6a99c5a267c4cec602
Chaos
915a29734bf7d770c4a2bf259b29f06f56338577659aa64d09fc8b91dedeb51b
Chaos
ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82
Chaos
db0759eb584acd22fc6594ff7b8f6dffed34fb9e3dc427d22ba94bac9808f63a
Chaos
f871efc0cdf5446908e436de9ed821ff0ec5e217c50c16e69e3d0e83f6257f0f
Chaos
+ 3'471 additional samples on MalwareBazaar
Result
Malware family:
chaos
Create hunting rule
Score:
  10/10
Tags:
family:chaos evasion ransomware spyware stealer
Link:
https://tria.ge/reports/221203-wlvw1scf54/
Behaviour
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops desktop.ini file(s)
Checks computer location settings
Drops startup file
Reads user/profile data of web browsers
Executes dropped EXE
Deletes shadow copies
Modifies boot configuration data using bcdedit
Chaos
Chaos Ransomware
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/40a2ca2b-3c20-445b-ac6c-3c61525d9654
Unpacked files
SH256 hash:
3cbcf3dee3ab20b3bdc0ac1e536746f1f6ea63a8c242244d495400a88327de18
MD5 hash:
fb79473241a92f1c04b5bc7ed0cfb2bf
SHA1 hash:
cd127d6ae09b5add9d2c853e3a4e1a24f60e2cf6
Link:
https://www.unpac.me/results/3c27b7f0-e986-4db7-b7c8-f961412df408/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3cbcf3dee3ab/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/3cbcf3dee3ab20b3bdc0ac1e536746f1f6ea63a8c242244d495400a88327de18

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: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/342325/

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