MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f358937a974384f66ac6a4643243baf6690d5e9292e5bcc23e4b27aa74c722e. 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: 16


Intelligence 16 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f358937a974384f66ac6a4643243baf6690d5e9292e5bcc23e4b27aa74c722e
SHA3-384 hash: b30e70264a16d22e6cf90ebf17d82bd3920e5b5898f9e30c6380214ba926e590a4620d59b891a0ba2f7a944525040f2b
SHA1 hash: 3de54b83596b45581c3f3b5dd0e95b16ad451dcb
MD5 hash: 85ab96fb1f88a7c361d338143a210857
humanhash: california-beryllium-harry-red
File name:CloudServices.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:91'648 bytes
First seen:2025-05-12 16:18:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:emhwSMgDbSiFkOmH1BUsd1LE+cweFMRHBLpbokqR:3wSMgDbSwkOmH1BUsdNEFMTLpNi
Threatray 980 similar samples on MalwareBazaar
TLSH T1E093084933E88824E9BE8532E57140510B7BFC594935E26D1BD9B4ED2F7BA8085C3BE3
TrID 66.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.5% (.EXE) Win64 Executable (generic) (10522/11/4)
5.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.0% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter James_inthe_box
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
494
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CloudServices.exe
Verdict:
Malicious activity
Analysis date:
2025-05-12 16:22:37 UTC
Tags:
snake keylogger evasion ims-api generic stealer
Link:
https://app.any.run/tasks/aa044368-f6f2-4508-90f6-9d61ce2a720f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Generic-10008460-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=682220984a59e5a2ce03f811
Tags:
masslogger virus micro smtp
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive hacktool obfuscated reconnaissance stealer stealer telegram vbnet
Link:
https://www.filescan.io/uploads/68221f88d95f3e34e9673b79/reports/6cd2e0f6-326e-4b19-8ca7-ce14c457df85/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/3f358937a974384f66ac6a4643243baf6690d5e9292e5bcc23e4b27aa74c722e
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/804165f7-2c85-492a-a184-b573729b494d
Result
Threat name:
MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1688158
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
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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)
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3f358937a974384f66ac6a4643243baf6690d5e9292e5bcc23e4b27aa74c722e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3f358937a974384f66ac6a4643243baf6690d5e9292e5bcc23e4b27aa74c722e/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-05-12 16:18:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
29 of 37 (78.38%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h42ysn5joq4e6zvmnjdegjb3v5tjbvpjfexfxtbd4szhvj2moixa._file
Verdict:
malicious
Label(s):
novastealer
Create hunting rule
Similar samples:
76b1888b20b4e7834dac328d30e7681b7170e9c3b6a14f48f1692ae3a79eda81
MassLogger
9a0668d4aa84ec422ee66513a6a42057cab7bf62b091afe2aa1d0610e0ebcc51
MassLogger
a8dfdc2850949aa819134a0597cde81b518e2299fba098be23455f88cf4c1958
MassLogger
d95ff41bfbaa705e05507570aad939636676d3a691814214998c7b8607f93cd1
MassLogger
e3aab9615b4fa6b1463e4d25a898bb1eb47fbe450c882d7309c4232f4d41aa45
MassLogger
error
MassLogger
+ 970 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger collection discovery spyware stealer
Link:
https://tria.ge/reports/250512-tsnp6svlw4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
outlook_office_path
outlook_win_path
System Location Discovery: System Language Discovery
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
MassLogger
Masslogger family
Malware Config
C2 Extraction:
https://api.telegram.org/bot7341689230:AAHymAZAjTKDwQdX3qK2HITohVFwhbvLPIc/sendMessage?chat_id=8074674260
Verdict:
Malicious
Tags:
keylogger snake_keylogger Win.Malware.Generic-10008460-0 404keylogger
YARA:
Windows_Trojan_SnakeKeylogger_af3faa65
Link:
https://app.threat.zone/submission/802837bb-b1f0-4b1c-94c4-e173894213d7
Unpacked files
SH256 hash:
3f358937a974384f66ac6a4643243baf6690d5e9292e5bcc23e4b27aa74c722e
MD5 hash:
85ab96fb1f88a7c361d338143a210857
SHA1 hash:
3de54b83596b45581c3f3b5dd0e95b16ad451dcb
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/4b516f46-6605-4fd4-8b22-be63100c332b/
Parent samples :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 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/3f358937a974384f66ac6a4643243baf6690d5e9292e5bcc23e4b27aa74c722e

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_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: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: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.

Malspam

MassLogger

Executable exe 3f358937a974384f66ac6a4643243baf6690d5e9292e5bcc23e4b27aa74c722e

(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