MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99c5c57ec66db2b568df0891d6e8d4c6420e1bcd629ef55f7148659c9759e3eb. 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


SnakeKeylogger


Vendor detections: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99c5c57ec66db2b568df0891d6e8d4c6420e1bcd629ef55f7148659c9759e3eb
SHA3-384 hash: a366250d2f5d6074bdbd74a558b43a1cc21eb680233dd866df73cb839c7dfad56e33549c7349ee71edac8ecffd283958
SHA1 hash: fc2e317d419062860f98f3f0df2f95fcb5ce7718
MD5 hash: 24726d59051982bcb1ded3daedaacb0b
humanhash: football-alanine-social-apart
File name:Ylvclgj.exe
Download: download sample
Signature SnakeKeylogger
Create hunting rule
File size:23'040 bytes
First seen:2023-09-29 08:51:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 384:eU5ewSdw/L2APL6yRqtxAx+roEOsVK/KO+sB6fOK:FqwCs3RqtGx+roAYP+97
Threatray 5'815 similar samples on MalwareBazaar
TLSH T194A24B82A68066B7FDB503B454370E51077ABEBA8E50670F28C47F7B3DB37530516A2A
TrID 56.5% (.EXE) Win64 Executable (generic) (10523/12/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):PE icon
dhash icon f2b8c89eb4dcdc78 (19 x SnakeKeylogger, 4 x PureCrypter)
Reporter abuse_ch
Tags:exe SnakeKeylogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
283
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Ylvclgj.exe
Verdict:
Malicious activity
Analysis date:
2023-09-29 09:21:02 UTC
Tags:
evasion snake
Link:
https://app.any.run/tasks/1b7a6e69-9dd7-48d9-be01-c56e48f7f565

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the %AppData% directory
Launching a process
Creating a file
Sending an HTTP GET request
Reading critical registry keys
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Forced shutdown of a browser
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6516903432ffdb7a7a18a3b5/reports/59809e7c-6c01-4e3c-8334-0ad1d3bd25b0/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/99c5c57ec66db2b568df0891d6e8d4c6420e1bcd629ef55f7148659c9759e3eb
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/7d2b531d-5733-4b9c-b68c-f82c3afd9e4e
Result
Threat name:
Snake Keylogger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1316293
Signature
.NET source code contains potential unpacker
Creates autostart registry keys with suspicious names
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected Snake Keylogger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1316293 Sample: Ylvclgj.exe Startdate: 29/09/2023 Architecture: WINDOWS Score: 100 26 checkip.dyndns.org 2->26 28 windowsupdatebg.s.llnwi.net 2->28 30 3 other IPs or domains 2->30 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 7 other signatures 2->48 7 dddddd.exe 14 5 2->7         started        10 Ylvclgj.exe 15 5 2->10         started        14 dddddd.exe 4 2->14         started        signatures3 process4 dnsIp5 50 Multi AV Scanner detection for dropped file 7->50 52 Machine Learning detection for dropped file 7->52 54 Writes to foreign memory regions 7->54 16 MSBuild.exe 2 7->16         started        36 cdn.discordapp.com 162.159.134.233, 443, 49700, 49708 CLOUDFLARENETUS United States 10->36 24 C:\Users\user\AppData\Roaming\dddddd.exe, PE32+ 10->24 dropped 56 Creates autostart registry keys with suspicious names 10->56 58 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->58 60 Modifies the context of a thread in another process (thread injection) 10->60 19 MSBuild.exe 14 2 10->19         started        62 Injects a PE file into a foreign processes 14->62 22 MSBuild.exe 14->22         started        file6 signatures7 process8 dnsIp9 38 Tries to steal Mail credentials (via file / registry access) 16->38 40 Tries to harvest and steal browser information (history, passwords, etc) 16->40 32 api.telegram.org 149.154.167.220, 443, 49707, 49712 TELEGRAMRU United Kingdom 19->32 34 checkip.dyndns.com 158.101.44.242, 49706, 49711, 49713 ORACLE-BMC-31898US United States 19->34 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99c5c57ec66db2b568df0891d6e8d4c6420e1bcd629ef55f7148659c9759e3eb/
Threat name:
ByteCode-MSIL.Trojan.Seraph
Create hunting rule
Status:
Malicious
First seen:
2023-09-27 07:44:08 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
7
AV detection:
8 of 23 (34.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=thc4k7wgnwzlk2g7bci5n2guyzba4g6nmkppkx3rjbszzf2z4pvq._file
Verdict:
malicious
Similar samples:
17aef7f33ee1725a500067cf27953fbaaf7ae489c2cf974a0d5a676e454750eb
SnakeKeylogger
2d397c3b96952610182b2f157200c188b1f816689dda18ab175b813108acce13
SnakeKeylogger
5a96b2ee857230909bb837b1dd9fb6ed11aaea56f60dc5f86b2a9a02bd2c36f4
SnakeKeylogger
632c5b10104b635a5c2aaaa6d9af5ca9677aa771194decb982ee8ff6525decf3
SnakeKeylogger
6857636b461fb0a980eb6e3d326c2c28ba9b1838b30bd0520d9c2e6805b1f35b
SnakeKeylogger
6c36ee2ebc5cd0a59e6db99f92904961df078e4009ac23fcbd25865a54a5c526
SnakeKeylogger
7608743b37f95e13662d2db2e5afa75550e6062b4f0c344143ef14f3f6339eab
SnakeKeylogger
9271b0e6dbf0bd4a876beb6dcb5c9542585748980c9b9e31645d80ca658febe8
SnakeKeylogger
ebd0f12995682c7dce98a9de8e7105f7762bfc30a297d46634c67f0c1e420f92
SnakeKeylogger
ec73a25504f897928b815fb34f9561f742482b3fe457d1bdaa3279dfe19c1eb6
SnakeKeylogger
+ 5'805 additional samples on MalwareBazaar
Result
Malware family:
snakekeylogger
Create hunting rule
Score:
  10/10
Tags:
family:snakekeylogger collection keylogger persistence stealer
Link:
https://tria.ge/reports/230929-ksq1vsad24/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Snake Keylogger
Snake Keylogger payload
Malware Config
C2 Extraction:
https://api.telegram.org/bot6563963046:AAGlyBHZ_ALQCHnOUZcYa0FHqP2za43gVaM/sendMessage?chat_id=5262627523
Unpacked files
SH256 hash:
99c5c57ec66db2b568df0891d6e8d4c6420e1bcd629ef55f7148659c9759e3eb
MD5 hash:
24726d59051982bcb1ded3daedaacb0b
SHA1 hash:
fc2e317d419062860f98f3f0df2f95fcb5ce7718
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/76e9062b-f92d-4eee-8dca-e0279b65f43b/
Malware family:
SnakeKeylogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/99c5c57ec66d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/99c5c57ec66db2b568df0891d6e8d4c6420e1bcd629ef55f7148659c9759e3eb

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_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

SnakeKeylogger

Executable exe 99c5c57ec66db2b568df0891d6e8d4c6420e1bcd629ef55f7148659c9759e3eb

(this sample)

  
Delivery method
Distributed via e-mail attachment

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