MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ebd0f12995682c7dce98a9de8e7105f7762bfc30a297d46634c67f0c1e420f92. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash: ebd0f12995682c7dce98a9de8e7105f7762bfc30a297d46634c67f0c1e420f92
SHA3-384 hash: 6a99a32faae3531611a143fb7186aaa54ed9fc909117838510a7c4b31102a5300f2f9ae91e2cb787748d46b4b93ee4d7
SHA1 hash: 8c3101649323ac640620d4c49f7b2e5851dbcef5
MD5 hash: 0546b0f6bd73cfc3b7e1e48dcccee3a3
humanhash: freddie-connecticut-black-equal
File name:Rzkomf.exe
Download: download sample
Signature SnakeKeylogger
File size:100'864 bytes
First seen:2023-09-11 09:16:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:nDs0oUevr+qCEd05zed8pHgO98zYJvbUbFElCKoqA:nY3UevaqCEd05eoHh8MJvbWFpn
Threatray 5'737 similar samples on MalwareBazaar
TLSH T1A8A329A44B843A2FCA5F4735F2228204DBB5DD606113E78A17AC30E965DF3F9964B4F2
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 c2a49c9ab6d8dc78 (20 x SnakeKeylogger, 2 x PureCrypter, 1 x PureLogsStealer)
Reporter abuse_ch
Tags:exe SnakeKeylogger

Intelligence


File Origin
# of uploads :
1
# of downloads :
295
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Rzkomf.exe
Verdict:
Malicious activity
Analysis date:
2023-09-11 09:18:50 UTC
Tags:
evasion snake

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Gathering data
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:
Snake Keylogger
Verdict:
Malicious
Result
Threat name:
Snake Keylogger
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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
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 Generic Downloader
Yara detected Snake Keylogger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1307154 Sample: Rzkomf.exe Startdate: 11/09/2023 Architecture: WINDOWS Score: 100 40 tse1.mm.bing.net 2->40 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 6 other signatures 2->56 7 Rzkomf.exe 15 5 2->7         started        12 ddddddddddd.exe 14 5 2->12         started        14 ddddddddddd.exe 4 2->14         started        signatures3 process4 dnsIp5 42 cdn.discordapp.com 162.159.135.233, 443, 49697, 49714 CLOUDFLARENETUS United States 7->42 24 C:\Users\user\AppData\...\ddddddddddd.exe, PE32+ 7->24 dropped 58 Creates autostart registry keys with suspicious names 7->58 60 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->60 62 Writes to foreign memory regions 7->62 16 MSBuild.exe 14 2 7->16         started        64 Multi AV Scanner detection for dropped file 12->64 66 Modifies the context of a thread in another process (thread injection) 12->66 68 Injects a PE file into a foreign processes 12->68 20 MSBuild.exe 12->20         started        22 MSBuild.exe 14->22         started        file6 signatures7 process8 dnsIp9 26 checkip.dyndns.org 16->26 28 checkip.dyndns.com 132.226.247.73, 49712, 80 UTMEMUS United States 16->28 30 api.telegram.org 149.154.167.220, 443, 49713, 49725 TELEGRAMRU United Kingdom 16->30 44 May check the online IP address of the machine 16->44 46 Tries to steal Mail credentials (via file / registry access) 16->46 32 checkip.dyndns.org 20->32 34 193.122.130.0, 49724, 80 ORACLE-BMC-31898US United States 20->34 36 checkip.dyndns.org 22->36 38 193.122.6.168, 49726, 80 ORACLE-BMC-31898US United States 22->38 48 Tries to harvest and steal browser information (history, passwords, etc) 22->48 signatures10
Threat name:
Win64.Trojan.Nekark
Status:
Malicious
First seen:
2023-09-11 09:17:06 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
7
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Result
Malware family:
snakekeylogger
Score:
  10/10
Tags:
family:snakekeylogger collection keylogger persistence stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
outlook_win_path
Drops file in System32 directory
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/bot6453253577:AAF8I1Opyct6FxOFoJ__kW-X7E1lTSYCv9s/sendMessage?chat_id=6373691592
Unpacked files
SH256 hash:
ebd0f12995682c7dce98a9de8e7105f7762bfc30a297d46634c67f0c1e420f92
MD5 hash:
0546b0f6bd73cfc3b7e1e48dcccee3a3
SHA1 hash:
8c3101649323ac640620d4c49f7b2e5851dbcef5
Malware family:
SnakeKeylogger
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

SnakeKeylogger

Executable exe ebd0f12995682c7dce98a9de8e7105f7762bfc30a297d46634c67f0c1e420f92

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments