MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f186e55feac04f6c0477e8a6c60527ac4a95c8659727b464875e8717c86ac60a. 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 6 File information Comments
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SHA256 hash: f186e55feac04f6c0477e8a6c60527ac4a95c8659727b464875e8717c86ac60a
SHA3-384 hash: 51bbbf78f2b2010e4d98df0daecd9e6b61267d23e3b7cba1bb89b8990444206735ef0649c03e721d489e6af2ba6c0333
SHA1 hash: b39afdde4b656d0a6d462c07ebd7ee2fdfd7b544
MD5 hash: 20363627a8aee09a1501678413544dc8
humanhash: shade-lake-batman-coffee
File name:f186e55feac04f6c0477e8a6c60527ac4a95c8659727b464875e8717c86ac60a
Download: download sample
Signature Chaos
Create hunting rule
File size:554'496 bytes
First seen:2022-10-04 18:09:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'874 x AgentTesla, 19'799 x Formbook, 12'305 x SnakeKeylogger)
ssdeep 12288:XbcXVFIXLfmSYgkkL+8h+afxQl9OUVfU:AI7rbp8
Threatray 76 similar samples on MalwareBazaar
TLSH T1E4C4CB342DFA501AB0B3EF7D9BE8759BD9AEB7722703549D207103864623D43DD8293A
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter petikvx
Tags:Chaos exe Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
575
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/316613/
Detection(s):
Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
cmd.exe packed
Link:
https://www.filescan.io/uploads/633c76fd5c60ccc9fcff3ae4/reports/5feb69f1-50ef-4d30-9f2f-8da52dbca41b/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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/573ee826-4ac7-4680-9a3e-14d0e74d0a39
Result
Threat name:
Chaos, Voidcrypt
Create hunting rule
Detection:
malicious
Classification:
rans.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1083487
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Contains functionality to disable the Task Manager (.Net Source)
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
Deletes the backup plan of Windows
Disables the Windows task manager (taskmgr)
Found ransom note / readme
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
Tries to harvest and steal browser information (history, passwords, etc)
Uses bcdedit to modify the Windows boot settings
Writes many files with high entropy
Yara detected Chaos Ransomware
Yara detected Voidcrypt Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 716045 Sample: bgPTtkGkvk.exe Startdate: 04/10/2022 Architecture: WINDOWS Score: 100 73 Malicious sample detected (through community Yara rule) 2->73 75 Antivirus / Scanner detection for submitted sample 2->75 77 Multi AV Scanner detection for submitted file 2->77 79 8 other signatures 2->79 8 bgPTtkGkvk.exe 5 2->8         started        11 browser.exe 2->11         started        14 wbengine.exe 2->14         started        16 4 other processes 2->16 process3 file4 71 C:\Users\user\AppData\Roaming\browser.exe, PE32 8->71 dropped 18 browser.exe 2 502 8->18         started        95 Deletes shadow drive data (may be related to ransomware) 11->95 97 Uses bcdedit to modify the Windows boot settings 11->97 99 Tries to harvest and steal browser information (history, passwords, etc) 11->99 101 Modifies existing user documents (likely ransomware behavior) 11->101 22 cmd.exe 11->22         started        24 cmd.exe 11->24         started        26 cmd.exe 11->26         started        signatures5 process6 file7 63 CachedImage_1280_1024_POS4.jpg.okhacked, data 18->63 dropped 65 C:\...\Built-In Building Blocks.dotx.okhacked, data 18->65 dropped 67 C:\Users\user\...\TURABIAN.XSL.okhacked, data 18->67 dropped 69 26 other malicious files 18->69 dropped 81 Multi AV Scanner detection for dropped file 18->81 83 Creates files inside the volume driver (system volume information) 18->83 85 Deletes shadow drive data (may be related to ransomware) 18->85 93 2 other signatures 18->93 28 cmd.exe 1 18->28         started        31 cmd.exe 1 18->31         started        33 cmd.exe 1 18->33         started        87 May disable shadow drive data (uses vssadmin) 22->87 35 conhost.exe 22->35         started        37 vssadmin.exe 22->37         started        39 WMIC.exe 22->39         started        89 Uses bcdedit to modify the Windows boot settings 24->89 41 conhost.exe 24->41         started        43 2 other processes 24->43 91 Deletes the backup plan of Windows 26->91 45 2 other processes 26->45 signatures8 process9 signatures10 103 May disable shadow drive data (uses vssadmin) 28->103 105 Deletes shadow drive data (may be related to ransomware) 28->105 107 Uses bcdedit to modify the Windows boot settings 28->107 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        109 Deletes the backup plan of Windows 33->109 59 conhost.exe 33->59         started        61 wbadmin.exe 33->61         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f186e55feac04f6c0477e8a6c60527ac4a95c8659727b464875e8717c86ac60a/
Threat name:
ByteCode-MSIL.Ransomware.HiddenTear
Create hunting rule
Status:
Malicious
First seen:
2022-10-04 14:27:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6gdokx7kybhwybdx5ctmmbjhvrfjlsdfs4t3izehl2drpsdkyyfa._file
Verdict:
malicious
Similar samples:
1fa7c0030e8a0f71b80e37ba97408d1b3131d0c2ba4f4f50ece88d96fe175ac6
Chaos
6b8e57d157a7d0567aa89b96bfedc463c1b46b6c2536dcdcd57a24c84cc45d3b
Chaos
7e598e4c17cfc92223c05bab3dc60f0b6325501e58ef34090e635557f29eef44
Chaos
834eaff238a45508d945b3193d34043858d4026549cc03d2cfb89d5ac2ae2844
Chaos
93a4d36a6e6ae87c790522b78f581e871cfec793e301c54e7a596c9561f9313c
Chaos
c3eb90dd2f0e59da628fb4235055ffb2775e86118f793cc43044e5e3eca50297
Chaos
d2238bcff8d4ff94256c8df702a31182763fa55325040cd484bc9abae2e69c5a
Chaos
+ 66 additional samples on MalwareBazaar
Result
Malware family:
chaos
Create hunting rule
Score:
  10/10
Tags:
family:chaos ransomware
Link:
https://tria.ge/reports/221004-wr1z8acahj/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Chaos
Chaos Ransomware
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/51c57255-a184-4972-8f57-fd616b394ea4
Unpacked files
SH256 hash:
f186e55feac04f6c0477e8a6c60527ac4a95c8659727b464875e8717c86ac60a
MD5 hash:
20363627a8aee09a1501678413544dc8
SHA1 hash:
b39afdde4b656d0a6d462c07ebd7ee2fdfd7b544
Link:
https://www.unpac.me/results/a5fce0d3-9ecb-4053-a7ca-ae0151b83a40/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
SNC
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f186e55feac04f6c0477e8a6c60527ac4a95c8659727b464875e8717c86ac60a

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:INDICATOR_SUSPICOUS_EXE_References_VEEAM
Create hunting rule
Author:ditekSHen
Description:Detects executables containing many references to VEEAM. Observed in ransomware
Rule name:MALWARE_Win_Chaos
Create hunting rule
Author:ditekSHen
Description:Detects Chaos ransomware
Rule name:pe_imphash
Create hunting rule
Rule name:RansomwareTest8
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
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/316613/

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