MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6. 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 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6
SHA3-384 hash: edadb8b1a966d0c476afb35d18b010c290bc3eb67e693421c2a60ac5f0367877850ebf8d3e3aacf306ddc1d9b984bbbf
SHA1 hash: fb08ff3efacab1f676fecd90b96193fa1b14a518
MD5 hash: e74909ba4ebd7198234c294520c78edb
humanhash: alpha-carbon-butter-nine
File name:91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6
Download: download sample
Signature MassLogger
Create hunting rule
File size:535'552 bytes
First seen:2025-04-08 07:20:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:dfFxlloFA2SoCvygEIy9wqTHlFFusR3+CDSvR1p:dfll6SoCKn2I1R3+v1
TLSH T11BB4010927AAC813C5971FF43E61C2B163F6AEACB211C7578BD52CAF709B3652940393
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter adrian__luca
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
397
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6
Verdict:
Malicious activity
Analysis date:
2025-04-08 07:51:20 UTC
Tags:
snake keylogger evasion stealer netreactor ims-api generic
Link:
https://app.any.run/tasks/2844e543-61c2-4e21-8a1c-9f6844e8c112

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/1252/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f4cf6be011fe619fad0d43
Tags:
virus spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67f4ce402d430c849e0c5418/reports/3bfa68f3-af4f-46e7-a55c-0b8657d99a46/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3c80bcb9-ff8d-48db-a7e5-1724e25e7af0
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/1659006
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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 AntiVM3
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/91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6/
Threat name:
Win32.Trojan.Jalapeno
Create hunting rule
Status:
Malicious
First seen:
2025-03-21 16:05:31 UTC
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=shcrsbnc3moctkswfwlvx2wffwejknblbthmwfvowxka3kux2k3a._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
novastealer
Create hunting rule
Similar samples:
error
MassLogger
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution spyware stealer
Link:
https://tria.ge/reports/250408-h6avpazyas/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
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
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/a956ec36-80a1-465a-bc81-738d32cd32c1
Unpacked files
SH256 hash:
91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6
MD5 hash:
e74909ba4ebd7198234c294520c78edb
SHA1 hash:
fb08ff3efacab1f676fecd90b96193fa1b14a518
Link:
https://www.unpac.me/results/75024cc6-83eb-4443-9bcc-c374361c3f0b/
SH256 hash:
7f24245d3ba0ddbe6907f1071b27e1c5a05112877b1d4ec4c1ce74d0b6621df1
MD5 hash:
44866ab397ca013874c760a9bfb4bcd6
SHA1 hash:
03123d253eced31d1d816f3da861216695daee17
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/75024cc6-83eb-4443-9bcc-c374361c3f0b/
Parent samples :
231f146362543fc6a0a100793a581a78db77b0e3ac90866c5ee747209daaecb0
91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6
c307a1875ba19a6e5a8127d23aec14b6e1661fae50a09e92ac971dd77e2e3341
0a7a1c34834ee4656d7a05322c1c7cd38203bc3cfa694eac49f94b0350f13ef6
4f334f5a104cded0fc431d71abe76316f2ee4544b8d78d94a30da8189ff52411
SH256 hash:
c254c3883c520dc798c134647d770835bcc0bee47c937052a98cb86a5dc75772
MD5 hash:
842041ab24ef1e2b238209f11f81793f
SHA1 hash:
0555ecd40330c5e4c2af3e10c60f6265264d6ec0
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/75024cc6-83eb-4443-9bcc-c374361c3f0b/
Parent samples :
8671b523e51639f2655a3a66c01cc6b9d6db29eff0ad4c052560b137cc373f86
b68768d198b634640052e1541b761c4940795292cb1bc0cd4349a7c9d1292da8
0795a88b1c043cd208174cbca41e10832cd7ded4f56469244f8e9750b1f10efe
91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6
SH256 hash:
99f0b14f87753f3e566a7081b8be142da4994b77db4eae37a815d833d7c81ed2
MD5 hash:
fe5782562d7f9afaa6be5abd1031094d
SHA1 hash:
17004c12fd626d339e1dea8bb373cb3855b7b612
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/75024cc6-83eb-4443-9bcc-c374361c3f0b/
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/91c51905a2db1c29aa562d975beac52d8895342b0ccecb16aeb5d40daa97d2b6

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/1252/

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

Comments