MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42b1c4d3e4813837cd0e171e23cc140d8f65ea6581dd443f106269e6acbc00c1. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 42b1c4d3e4813837cd0e171e23cc140d8f65ea6581dd443f106269e6acbc00c1
SHA3-384 hash: 681e7b3af30eba1d057bf3c6e0cb7cbabe2e0366248345ee7983d6c23ba9c8e0f5ec87baf1beeb09902d5849199a93f3
SHA1 hash: 071e6b939fa20b617a921b8dd6796b8dd04f270c
MD5 hash: 5a96793424a2719352dacb473cf30119
humanhash: missouri-eighteen-fanta-connecticut
File name:SecuriteInfo.com.Trojan.PackedNET.3148.11303.13897
Download: download sample
Signature MassLogger
Create hunting rule
File size:592'384 bytes
First seen:2025-02-26 10:27:20 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 12288:9Mr8IRYdYeXY/e1tQVaJoQBls7i+qrsaJgRkAKkIule6uzCXpdz15Qk+uTN:9Mrb+RPQ0JoQFLg2FieK/z1+YTN
TLSH T180C4E0A47719B512C9AAE7B005B1F6B857385EAE9400E3079FD87CEF7876F420D09683
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 SecuriteInfoCom
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
350
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Trojan.PackedNET.3148.11303.13897
Verdict:
Malicious activity
Analysis date:
2025-02-26 11:17:08 UTC
Tags:
evasion snake keylogger stealer
Link:
https://app.any.run/tasks/ee796f16-8701-45a5-85fb-ff42c74dc27e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3148.11303.13897.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67beed0ea0fd713c335cebe4
Tags:
dropper micro 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
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
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67beecc660f4b4f0724cc4a5/reports/b6ded79f-a74e-4c9e-b0c3-c641d645c331/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/42b1c4d3e4813837cd0e171e23cc140d8f65ea6581dd443f106269e6acbc00c1
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/148aca43-7797-4b5b-9514-891c76c266c0
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/1624563
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
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
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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
Yara detected AntiVM3
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1624563 Sample: SecuriteInfo.com.Trojan.Pac... Startdate: 26/02/2025 Architecture: WINDOWS Score: 100 50 reallyfreegeoip.org 2->50 52 checkip.dyndns.org 2->52 54 checkip.dyndns.com 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Sigma detected: Scheduled temp file as task from temp location 2->60 64 10 other signatures 2->64 8 SecuriteInfo.com.Trojan.PackedNET.3148.11303.13897.exe 7 2->8         started        12 FicFXwDQ.exe 5 2->12         started        signatures3 62 Tries to detect the country of the analysis system (by using the IP) 50->62 process4 file5 38 C:\Users\user\AppData\Roaming\FicFXwDQ.exe, PE32 8->38 dropped 40 C:\Users\...\FicFXwDQ.exe:Zone.Identifier, ASCII 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmp9270.tmp, XML 8->42 dropped 44 SecuriteInfo.com.T...11303.13897.exe.log, ASCII 8->44 dropped 66 Uses schtasks.exe or at.exe to add and modify task schedules 8->66 68 Adds a directory exclusion to Windows Defender 8->68 70 Injects a PE file into a foreign processes 8->70 14 powershell.exe 23 8->14         started        17 SecuriteInfo.com.Trojan.PackedNET.3148.11303.13897.exe 15 2 8->17         started        20 schtasks.exe 1 8->20         started        72 Multi AV Scanner detection for dropped file 12->72 22 FicFXwDQ.exe 14 2 12->22         started        24 schtasks.exe 1 12->24         started        26 FicFXwDQ.exe 12->26         started        28 FicFXwDQ.exe 12->28         started        signatures6 process7 dnsIp8 74 Loading BitLocker PowerShell Module 14->74 30 WmiPrvSE.exe 14->30         started        32 conhost.exe 14->32         started        46 checkip.dyndns.com 158.101.44.242, 49713, 49717, 80 ORACLE-BMC-31898US United States 17->46 48 reallyfreegeoip.org 104.21.32.1, 443, 49714, 49719 CLOUDFLARENETUS United States 17->48 34 conhost.exe 20->34         started        76 Tries to steal Mail credentials (via file / registry access) 22->76 78 Tries to harvest and steal browser information (history, passwords, etc) 22->78 36 conhost.exe 24->36         started        signatures9 process10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/42b1c4d3e4813837cd0e171e23cc140d8f65ea6581dd443f106269e6acbc00c1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/42b1c4d3e4813837cd0e171e23cc140d8f65ea6581dd443f106269e6acbc00c1/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-02-25 13:16:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iky4ju7eqe4dptioc4pchtaubwhwl2tfqhouipyqmju6nlf4adaq._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/250226-mjbwpawyfz/
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/ec38b69f-61ea-441e-ba74-c17e1ae75353
Unpacked files
SH256 hash:
42b1c4d3e4813837cd0e171e23cc140d8f65ea6581dd443f106269e6acbc00c1
MD5 hash:
5a96793424a2719352dacb473cf30119
SHA1 hash:
071e6b939fa20b617a921b8dd6796b8dd04f270c
Link:
https://www.unpac.me/results/c7e3a9f5-1e32-452c-9efb-c4cc3b1f5db6/
SH256 hash:
e80a463e16b14b43e4112cb8f0cb0cf44ff245be592202042373a02b9ea4deb9
MD5 hash:
bbea1aafd0d7058f6f46c8ceff355f96
SHA1 hash:
14ca07073c0a943129823d6532358a55761a203f
Link:
https://www.unpac.me/results/c7e3a9f5-1e32-452c-9efb-c4cc3b1f5db6/
SH256 hash:
efc9a748846577adfbc3579c1d48388a27c0da21cb307222197d78d6d44298bd
MD5 hash:
e29df98419b7e0fa1b5028f19bca6864
SHA1 hash:
2511873bc33cc27cb79b57a132deb2242347ebda
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/c7e3a9f5-1e32-452c-9efb-c4cc3b1f5db6/
Parent samples :
4b35770dcf989100330750d55f71816bcad48120b24a9790ce49b8af3fec3b20
3dfd6a18e81bb4edcd59cf466115dc0a1edffe7bdac4bd093e0c74e61c2a720e
42b1c4d3e4813837cd0e171e23cc140d8f65ea6581dd443f106269e6acbc00c1
SH256 hash:
3cfd62f4e9b97b1eb58dda024efdef642f79c4036f49213641b882785e750447
MD5 hash:
9f1ce841730be5de62f37c0410bd5fd9
SHA1 hash:
554e6f01002e52e28e48d0cb0cd6a09b3b221915
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/c7e3a9f5-1e32-452c-9efb-c4cc3b1f5db6/
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/42b1c4d3e4813837cd0e171e23cc140d8f65ea6581dd443f106269e6acbc00c1

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: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.

Web download

MassLogger

Executable exe 42b1c4d3e4813837cd0e171e23cc140d8f65ea6581dd443f106269e6acbc00c1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3452865/
  
Delivery method
Distributed via web download

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