MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2ebb2a34dd6633e785f67d118a8c778969e4e34d667cf554268997e13920a1c6. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2ebb2a34dd6633e785f67d118a8c778969e4e34d667cf554268997e13920a1c6
SHA3-384 hash: 3ed462273c87e227e101b20ed3d1a46674990706ca6fd6eeb4e78ca6e17b45521d0794b1214d276c85e127a53d7737bb
SHA1 hash: 8a2f0c6b5f422cb2125273be1eece261aa3007e0
MD5 hash: 692ea33f6b08ccd47ef8a4f8b913fc4f
humanhash: two-uniform-neptune-oregon
File name:2ebb2a34dd6633e785f67d118a8c778969e4e34d667cf554268997e13920a1c6
Download: download sample
Signature Chaos
Create hunting rule
File size:247'296 bytes
First seen:2023-01-26 20:36:25 UTC
Last seen:2023-01-28 19:06:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:aoT9szr954q4qf8NWPr0Dp/XpoO1zDsJOFQVrFsUBTa488+6WniGxfLwxhqSEaqw:0r95wCPADpaOOwajTa65HyigEX1OeLn
Threatray 4'061 similar samples on MalwareBazaar
TLSH T1D7344C243AEB5019F273EF755FE47ADACA6FBA333A0794591091034A0A23E81DDD153E
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 706c606c64398ef8 (1 x Chaos)
Reporter petikvx
Tags:Chaos Ransomware

Intelligence

File Origin
# of uploads :
2
# of downloads :
429
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2ebb2a34dd6633e785f67d118a8c778969e4e34d667cf554268997e13920a1c6
Verdict:
Malicious activity
Analysis date:
2023-01-26 20:37:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0fba84b0-bc9b-41fa-b583-579dd38fc19c

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/357221/
Detection(s):
Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd.exe filecoder hydracrypt packed ransomware sorry
Link:
https://www.filescan.io/uploads/63d2e4701c9cbf7d62532a89/reports/6add8955-c9cb-4a9e-b298-09ea3317b12f/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/3bdf4c0a-ccdf-4618-af69-c040b1127cc7
Result
Threat name:
Chaos
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1159847
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: 792584 Sample: KyxcQST98c.exe Startdate: 26/01/2023 Architecture: WINDOWS Score: 100 79 Malicious sample detected (through community Yara rule) 2->79 81 Antivirus / Scanner detection for submitted sample 2->81 83 Multi AV Scanner detection for submitted file 2->83 85 6 other signatures 2->85 8 KyxcQST98c.exe 4 2->8         started        12 svchost.exe 6 2->12         started        14 wbengine.exe 2->14         started        16 4 other processes 2->16 process3 file4 73 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->73 dropped 75 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 8->75 dropped 77 C:\Users\user\AppData\...\KyxcQST98c.exe.log, CSV 8->77 dropped 103 Drops PE files with benign system names 8->103 18 svchost.exe 3 48 8->18         started        105 Deletes shadow drive data (may be related to ransomware) 12->105 107 Uses bcdedit to modify the Windows boot settings 12->107 22 cmd.exe 12->22         started        24 cmd.exe 12->24         started        26 cmd.exe 12->26         started        28 notepad.exe 12->28         started        109 Creates files inside the volume driver (system volume information) 14->109 signatures5 process6 file7 65 C:\Users\user\Desktop\...\UNKRLCVOHV.jpg, ASCII 18->65 dropped 67 C:\Users\user\Desktop\LIJDSFKJZG.mp3, ASCII 18->67 dropped 69 C:\Users\user\Desktop\...\WSHEJMDVQC.png, ASCII 18->69 dropped 71 C:\Users\user\AppData\Roaming\...\svchost.url, MS 18->71 dropped 87 Antivirus detection for dropped file 18->87 89 Multi AV Scanner detection for dropped file 18->89 91 Machine Learning detection for dropped file 18->91 93 Modifies existing user documents (likely ransomware behavior) 18->93 30 cmd.exe 1 18->30         started        33 cmd.exe 1 18->33         started        35 cmd.exe 1 18->35         started        37 notepad.exe 18->37         started        95 May disable shadow drive data (uses vssadmin) 22->95 97 Deletes shadow drive data (may be related to ransomware) 22->97 39 conhost.exe 22->39         started        41 vssadmin.exe 22->41         started        43 WMIC.exe 22->43         started        99 Uses bcdedit to modify the Windows boot settings 24->99 45 3 other processes 24->45 101 Deletes the backup plan of Windows 26->101 47 2 other processes 26->47 signatures8 process9 signatures10 111 May disable shadow drive data (uses vssadmin) 30->111 113 Deletes shadow drive data (may be related to ransomware) 30->113 115 Uses bcdedit to modify the Windows boot settings 30->115 49 WMIC.exe 1 30->49         started        51 conhost.exe 30->51         started        53 vssadmin.exe 1 30->53         started        55 bcdedit.exe 8 1 33->55         started        57 bcdedit.exe 7 1 33->57         started        59 conhost.exe 33->59         started        117 Deletes the backup plan of Windows 35->117 61 conhost.exe 35->61         started        63 wbadmin.exe 3 35->63         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2ebb2a34dd6633e785f67d118a8c778969e4e34d667cf554268997e13920a1c6/
Threat name:
ByteCode-MSIL.Ransomware.FileCoder
Create hunting rule
Status:
Malicious
First seen:
2023-01-24 10:34:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
34 of 36 (94.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f25sung5myz6pbpwpuiyvddxrfu6jy2nmz6pkvbgrgl6cojauhda._file
Verdict:
malicious
Similar samples:
0178461a8373f6147042d0c7ca7febb020dc4f600e639d6a53d343c02899bc9a
Chaos
058a8bec8f58c3fc1d7b530d83499db343896d146b4b01c1da452a159ab1a90a
Chaos
0a00b6668696bf62e14ea1acaa855397730e24bd66b594d9602bee37c2de2e6e
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0f36909d803b00afa7ec5c925651bbf9980f64318d55e9f4db7994aa1d2a1815
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1f57dcbcb1684ee5f037249fe8f48b48776ecb3c67bd726485cccc6bf1347541
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ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82
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db0759eb584acd22fc6594ff7b8f6dffed34fb9e3dc427d22ba94bac9808f63a
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f871efc0cdf5446908e436de9ed821ff0ec5e217c50c16e69e3d0e83f6257f0f
Chaos
+ 4'051 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/230126-zd5b9sfd67/
Behaviour
Checks SCSI registry key(s)
Interacts with shadow copies
Modifies registry class
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)
Checks computer location settings
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
Chaos
Chaos Ransomware
Unpacked files
SH256 hash:
2ebb2a34dd6633e785f67d118a8c778969e4e34d667cf554268997e13920a1c6
MD5 hash:
692ea33f6b08ccd47ef8a4f8b913fc4f
SHA1 hash:
8a2f0c6b5f422cb2125273be1eece261aa3007e0
Link:
https://www.unpac.me/results/ed6aaceb-e7d5-495b-a042-bcf8e495ba46/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2ebb2a34dd66/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/2ebb2a34dd6633e785f67d118a8c778969e4e34d667cf554268997e13920a1c6

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/357221/

Comments