MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb9479c3ab02cd405569e6db908925e4f4823eb57a270364fa6cd1d777bab26c. 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


MassLogger


Vendor detections: 15


Intelligence 15 IOCs YARA 13 File information Comments
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SHA256 hash: cb9479c3ab02cd405569e6db908925e4f4823eb57a270364fa6cd1d777bab26c
SHA3-384 hash: 6be4b57ba8509a55b0784a9fcc6c31ca646155236769133ec044ba4c3602bc147138e3f8f1f0714c1a1936b330d47812
SHA1 hash: 30956c06eaa65db2474e8bc2b62ea3351a06b837
MD5 hash: 5d7163249791d26403e79f36728ba0c5
humanhash: september-tango-sink-march
File name:Requested_Doc_0990_7726667_998002.pdf.exe
Download: download sample
Signature MassLogger
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File size:634'368 bytes
First seen:2025-02-04 07:45:36 UTC
Last seen:2025-02-04 08:41:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:xbiWik3s+fkO/lQ8FaFKQhPyXJWfaHFRc9cPT5WF:Bk0Fa6JCmc9E
TLSH T1F7D40822275162E6DE17BA3F0119BF180D7BC9D19B734DC8EE9E3291C9607310B6B4A7
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 09098dc765749549 (1 x MassLogger)
Reporter smica83
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
518
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Requested_Doc_0990_7726667_998002.pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-02-04 07:47:36 UTC
Tags:
snake keylogger evasion smtp stealer
Link:
https://app.any.run/tasks/4d75eb5d-8e74-4767-ab60-a70aabb65a35

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.DownLoader48.4743.31939.3530.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a1c6fd51193558eb1953f1
Tags:
underscore spam
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated obfuscated obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67a1c5c4990173aed935660f/reports/4931ebfc-0a54-41e3-a0d3-00cc0a0e4803/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/cb9479c3ab02cd405569e6db908925e4f4823eb57a270364fa6cd1d777bab26c
Result
Verdict:
UNKNOWN
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/11ce979e-4c5a-4fab-a33c-a14c9e985206
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1606277
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: RegAsm connects to smtp port
Sigma detected: Suspicious Double Extension File Execution
Tries to detect the country of the analysis system (by using the IP)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/cb9479c3ab02cd405569e6db908925e4f4823eb57a270364fa6cd1d777bab26c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb9479c3ab02cd405569e6db908925e4f4823eb57a270364fa6cd1d777bab26c/
Threat name:
Win32.Trojan.Leonem
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Status:
Malicious
First seen:
2025-01-20 15:18:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zokhtq5lalguavlj43nzbcjf4t2iepvvpitqgzh2nti5o552wjwa._file
Verdict:
malicious
Label(s):
snakekeylogger
Create hunting rule
Similar samples:
error
MassLogger
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery
Link:
https://tria.ge/reports/250204-jlztrasjel/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/744a934a-4d50-4860-9bf5-ceee8366afc2
Unpacked files
SH256 hash:
cb9479c3ab02cd405569e6db908925e4f4823eb57a270364fa6cd1d777bab26c
MD5 hash:
5d7163249791d26403e79f36728ba0c5
SHA1 hash:
30956c06eaa65db2474e8bc2b62ea3351a06b837
Link:
https://www.unpac.me/results/b8f30c96-833a-4cef-a6a3-62f4bdea9b33/
SH256 hash:
7ef9034e4fb3f7b14da787db8a0ba914fee13c16e8077c23f646fb7e3dacb506
MD5 hash:
2332897eedd2b0e61a156136b082270d
SHA1 hash:
4e78704ce7e060eb4380d89165cc8e3254101ff7
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/b8f30c96-833a-4cef-a6a3-62f4bdea9b33/
SH256 hash:
e8ebfda634e10c24642537582e256449074acdf2ac5ea827b81818c111111993
MD5 hash:
5b29dbce9331e1456dcac2b8f087dfd2
SHA1 hash:
702f2aef816d7ed31559640a56919a19c0c9cc51
Link:
https://www.unpac.me/results/b8f30c96-833a-4cef-a6a3-62f4bdea9b33/
SH256 hash:
bdd1a76c18a3093427ea642ec9ab0353eaf75db085b5477d59f92f01ad89d221
MD5 hash:
262262cbc143410b075e17fe9ef03a9f
SHA1 hash:
fd07f9f176b0f6dfa6265a2c6d4712cdec634412
Link:
https://www.unpac.me/results/b8f30c96-833a-4cef-a6a3-62f4bdea9b33/
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/cb9479c3ab02cd405569e6db908925e4f4823eb57a270364fa6cd1d777bab26c

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_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
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
Rule name:win_masslogger_w0
Create hunting rule
Author:govcert_ch

File information

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

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 (HIGH_ENTROPY_VA)high

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