MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4282d41f039431e25a94f29622f0585cbff48d86958118e770cfb8b2d16baea. 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: 17


Intelligence 17 IOCs YARA 16 File information Comments
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SHA256 hash: b4282d41f039431e25a94f29622f0585cbff48d86958118e770cfb8b2d16baea
SHA3-384 hash: 870ae1f1f15b2e700d130ac1d30c84326079a7924da5aece34b5371fca92d9512c49ae17337cebb3cda7cb5483802cff
SHA1 hash: 0e36e09bfae68d6ba5a671668eccfd2ded99c776
MD5 hash: 245c4d3a899092760b21b3bd44d3aca2
humanhash: indigo-coffee-artist-hydrogen
File name:rRFQ532566.scr
Download: download sample
Signature SnakeKeylogger
Create hunting rule
File size:784'896 bytes
First seen:2025-02-24 02:30:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:0Mr8I0MdYeXY/e1ApfXEnCTzX75mkIQIadeBYilF3YDHFBSukOS19gC76sgFAjku:0MrbxRqfXZ75m16emiX3OlBSuaJLsord
TLSH T19EF402943719B502CAA5A7B50672F6B8573C6EDE9401C71B8EE97CEB7CB2B010D09783
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon ae2f032b0b030b8e (9 x MassLogger, 6 x Formbook, 5 x AgentTesla)
Reporter FXOLabs
Tags:exe SnakeKeylogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
45
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
nRFQ_532566.cab.rar
Verdict:
Malicious activity
Analysis date:
2025-02-24 06:53:35 UTC
Tags:
arch-exec evasion snake keylogger telegram stealer ims-api generic
Link:
https://app.any.run/tasks/778983ae-d0cc-4d0c-b9f9-70833076fe48

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.24961.4087.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67bbd9b628ab76d43a5cccf9
Tags:
dropper virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Forced shutdown of a system process
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Forced shutdown of a browser
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67bbd9b73afc3763bec2f9e5/reports/429e4e2e-18b8-47fc-9dfd-b2069e897a87/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b4282d41f039431e25a94f29622f0585cbff48d86958118e770cfb8b2d16baea
Result
Verdict:
SUSPICIOUS
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/772471c7-1e7e-441b-957c-91b8a5bf0bfc
Result
Threat name:
Snake Keylogger, VIP Keylogger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1622435
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Silenttrinity Stager Msbuild Activity
Suricata IDS alerts for network traffic
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Snake Keylogger
Yara detected Telegram RAT
Yara detected VIP Keylogger
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1622435 Sample: rRFQ532566.scr.exe Startdate: 24/02/2025 Architecture: WINDOWS Score: 100 52 reallyfreegeoip.org 2->52 54 api.telegram.org 2->54 56 5 other IPs or domains 2->56 58 Suricata IDS alerts for network traffic 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 68 12 other signatures 2->68 8 rRFQ532566.scr.exe 7 2->8         started        12 NjlsFpztigKJe.exe 5 2->12         started        signatures3 64 Tries to detect the country of the analysis system (by using the IP) 52->64 66 Uses the Telegram API (likely for C&C communication) 54->66 process4 file5 38 C:\Users\user\AppData\...38jlsFpztigKJe.exe, PE32 8->38 dropped 40 C:\...40jlsFpztigKJe.exe:Zone.Identifier, ASCII 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmp31F2.tmp, XML 8->42 dropped 44 C:\Users\user\...\rRFQ532566.scr.exe.log, ASCII 8->44 dropped 70 Uses schtasks.exe or at.exe to add and modify task schedules 8->70 72 Writes to foreign memory regions 8->72 74 Allocates memory in foreign processes 8->74 76 Adds a directory exclusion to Windows Defender 8->76 14 powershell.exe 23 8->14         started        17 MSBuild.exe 15 2 8->17         started        20 schtasks.exe 1 8->20         started        22 MSBuild.exe 8->22         started        78 Multi AV Scanner detection for dropped file 12->78 80 Injects a PE file into a foreign processes 12->80 24 MSBuild.exe 12->24         started        26 schtasks.exe 12->26         started        28 MSBuild.exe 12->28         started        signatures6 process7 dnsIp8 82 Loading BitLocker PowerShell Module 14->82 30 WmiPrvSE.exe 14->30         started        32 conhost.exe 14->32         started        46 checkip.dyndns.com 132.226.247.73, 49734, 49739, 49740 UTMEMUS United States 17->46 48 reallyfreegeoip.org 104.21.32.1, 443, 49736, 49738 CLOUDFLARENETUS United States 17->48 34 conhost.exe 20->34         started        50 api.telegram.org 149.154.167.220, 443, 49774, 60337 TELEGRAMRU United Kingdom 24->50 84 Tries to steal Mail credentials (via file / registry access) 24->84 86 Tries to harvest and steal browser information (history, passwords, etc) 24->86 36 conhost.exe 26->36         started        signatures9 process10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b4282d41f039431e25a94f29622f0585cbff48d86958118e770cfb8b2d16baea
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b4282d41f039431e25a94f29622f0585cbff48d86958118e770cfb8b2d16baea/
Threat name:
ByteCode-MSIL.Spyware.Snakekeylogger
Create hunting rule
Status:
Malicious
First seen:
2025-02-24 02:30:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wquc2qpqhfbr4jnjj4uwelyfqxf76sgynfmbddtxbt5ywliwxlva._file
Result
Malware family:
vipkeylogger
Create hunting rule
Score:
  10/10
Tags:
family:vipkeylogger collection discovery execution keylogger stealer
Link:
https://tria.ge/reports/250224-cy8tvsyrhl/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Command and Scripting Interpreter: PowerShell
VIPKeylogger
Vipkeylogger family
Malware Config
C2 Extraction:
https://api.telegram.org/bot7305300476:AAEUtST2qu1J2LKdbC6Wuf8pKunuBNKtYtk/sendMessage?chat_id=6750192797
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/009c96ae-1ab2-469a-ba69-1ae548c62a33
Unpacked files
SH256 hash:
b4282d41f039431e25a94f29622f0585cbff48d86958118e770cfb8b2d16baea
MD5 hash:
245c4d3a899092760b21b3bd44d3aca2
SHA1 hash:
0e36e09bfae68d6ba5a671668eccfd2ded99c776
Link:
https://www.unpac.me/results/25cb212d-365f-4a88-a6b3-cea414d6478e/
SH256 hash:
e80a463e16b14b43e4112cb8f0cb0cf44ff245be592202042373a02b9ea4deb9
MD5 hash:
bbea1aafd0d7058f6f46c8ceff355f96
SHA1 hash:
14ca07073c0a943129823d6532358a55761a203f
Link:
https://www.unpac.me/results/25cb212d-365f-4a88-a6b3-cea414d6478e/
SH256 hash:
f64f14b5fad946042f63eb59640b07d551e42db52830032a31a8bf07e9673d66
MD5 hash:
8979c51bd0f7f0f3ace29eddb31a1255
SHA1 hash:
7bba3bcb20270ce8d8c538e7d20f471fb694f073
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/25cb212d-365f-4a88-a6b3-cea414d6478e/
SH256 hash:
dcdf1d255cbb4946787ebc4cb543294295dd72e36e30fb90d1c641b1fcfaa4f3
MD5 hash:
ae5415fa9cc6a5247277f958bdb823a0
SHA1 hash:
b312565fa2abae583c5e46342867d3c1dda6c128
Detections:
win_404keylogger_g1
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/25cb212d-365f-4a88-a6b3-cea414d6478e/
Parent samples :
7eafa69b06a236e9dda3903e82a08228808f1bbb3c470eb7bfae0a2f4b13ae4f
b4282d41f039431e25a94f29622f0585cbff48d86958118e770cfb8b2d16baea
Malware family:
VIPKeylogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b4282d41f039/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/b4282d41f039431e25a94f29622f0585cbff48d86958118e770cfb8b2d16baea

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:crime_snake_keylogger
Create hunting rule
Author:Rony (r0ny_123)
Description:Detects Snake keylogger payload
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
Create hunting rule
Author:ditekSHen
Description:Detects executables with potential process hoocking
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MAL_Envrial_Jan18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:MAL_Envrial_Jan18_1_RID2D8C
Create hunting rule
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
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:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:Windows_Trojan_SnakeKeylogger_af3faa65
Create hunting rule
Author:Elastic Security

File information

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

Malspam

SnakeKeylogger

Executable exe b4282d41f039431e25a94f29622f0585cbff48d86958118e770cfb8b2d16baea

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments