MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b35770dcf989100330750d55f71816bcad48120b24a9790ce49b8af3fec3b20. 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 16 File information Comments
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SHA256 hash: 4b35770dcf989100330750d55f71816bcad48120b24a9790ce49b8af3fec3b20
SHA3-384 hash: 8d1ad2ff73f96247b570f794a40daa8da1a639739a5af661441951a7b359515c2a309777fa26fb733bf5cbc9516e8718
SHA1 hash: 328610ffb014179c862e0b62e03cd7a903fc9393
MD5 hash: cff29e2bbeeb207fdb548774a6d9143a
humanhash: seven-lake-equal-hamper
File name:T506-21120.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:687'616 bytes
First seen:2025-02-14 13:01:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:joaovT2lPK7JAXdAHYrjmIcYo/avK4R297zp3GTVflqzaVY90/E97QuS5o:i2BKe79o/us9zITVd
TLSH T1E9E4ADDC3610B78FCC17C575CA68ECB4A6502CBAA306719395D727DBB95C583CF08AA2
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
File icon (PE):PE icon
dhash icon 44d48cc484ccc4a4 (11 x Formbook, 7 x MassLogger, 3 x SnakeKeylogger)
Reporter NDA0E
Tags:exe geo GRC MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
499
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
T506-21120.exe
Verdict:
Malicious activity
Analysis date:
2025-02-14 13:03:27 UTC
Tags:
evasion snake keylogger stealer
Link:
https://app.any.run/tasks/7dcdc84c-9502-44ca-b2ac-4247d895d49a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67af3fd228ab76d43a5ae830
Tags:
virus shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated obfuscated obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67af3ed2991985e0a958ef30/reports/89307d06-f544-482b-a19e-e445fa0cb405/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4b35770dcf989100330750d55f71816bcad48120b24a9790ce49b8af3fec3b20
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/478a37e7-88cb-4244-b92c-85ee15452c52
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1615100
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)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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 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 Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1615100 Sample: T506-21120.exe Startdate: 14/02/2025 Architecture: WINDOWS Score: 100 48 reallyfreegeoip.org 2->48 50 checkip.dyndns.org 2->50 52 checkip.dyndns.com 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Sigma detected: Scheduled temp file as task from temp location 2->58 62 9 other signatures 2->62 8 T506-21120.exe 7 2->8         started        12 PpqBDrjDrKNf.exe 5 2->12         started        signatures3 60 Tries to detect the country of the analysis system (by using the IP) 48->60 process4 file5 36 C:\Users\user\AppData\...\PpqBDrjDrKNf.exe, PE32 8->36 dropped 38 C:\Users\...\PpqBDrjDrKNf.exe:Zone.Identifier, ASCII 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmpA347.tmp, XML 8->40 dropped 42 C:\Users\user\AppData\...\T506-21120.exe.log, ASCII 8->42 dropped 64 Detected unpacking (changes PE section rights) 8->64 66 Detected unpacking (overwrites its own PE header) 8->66 68 Uses schtasks.exe or at.exe to add and modify task schedules 8->68 70 Adds a directory exclusion to Windows Defender 8->70 14 powershell.exe 23 8->14         started        17 T506-21120.exe 15 2 8->17         started        20 schtasks.exe 1 8->20         started        22 T506-21120.exe 8->22         started        72 Multi AV Scanner detection for dropped file 12->72 24 PpqBDrjDrKNf.exe 14 2 12->24         started        26 schtasks.exe 1 12->26         started        signatures6 process7 dnsIp8 74 Loading BitLocker PowerShell Module 14->74 28 WmiPrvSE.exe 14->28         started        30 conhost.exe 14->30         started        44 checkip.dyndns.com 193.122.130.0, 49706, 49710, 80 ORACLE-BMC-31898US United States 17->44 46 reallyfreegeoip.org 104.21.16.1, 443, 49708, 49712 CLOUDFLARENETUS United States 17->46 32 conhost.exe 20->32         started        76 Tries to steal Mail credentials (via file / registry access) 24->76 78 Tries to harvest and steal browser information (history, passwords, etc) 24->78 34 conhost.exe 26->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4b35770dcf989100330750d55f71816bcad48120b24a9790ce49b8af3fec3b20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b35770dcf989100330750d55f71816bcad48120b24a9790ce49b8af3fec3b20/
Threat name:
ByteCode-MSIL.Trojan.Heracles
Create hunting rule
Status:
Malicious
First seen:
2025-02-11 06:11:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jm2xodoptciqamyhkdkv64mbnpfnjajawjfjpegojg4k6p7mhmqa._file
Verdict:
malicious
Label(s):
unknown_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/250214-p9twaswren/
Behaviour
Scheduled Task/Job: Scheduled Task
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
System Network Configuration Discovery: Internet Connection 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
Downloads MZ/PE file
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/6f2209e1-c5a3-41ac-8a60-59b555e61e4a
Unpacked files
SH256 hash:
4b35770dcf989100330750d55f71816bcad48120b24a9790ce49b8af3fec3b20
MD5 hash:
cff29e2bbeeb207fdb548774a6d9143a
SHA1 hash:
328610ffb014179c862e0b62e03cd7a903fc9393
Link:
https://www.unpac.me/results/35054249-5a2c-4345-a5f8-0e806577e303/
SH256 hash:
4784fdf6643dd2c48b08c645ef50b5f8048f2f9dc4d91fcc609b33d06535bf33
MD5 hash:
1dffac3c1294430843b4e9c54c39c127
SHA1 hash:
00255b60f26bd62feea98adf9da63db545559114
Link:
https://www.unpac.me/results/35054249-5a2c-4345-a5f8-0e806577e303/
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/35054249-5a2c-4345-a5f8-0e806577e303/
Parent samples :
4b35770dcf989100330750d55f71816bcad48120b24a9790ce49b8af3fec3b20
3dfd6a18e81bb4edcd59cf466115dc0a1edffe7bdac4bd093e0c74e61c2a720e
42b1c4d3e4813837cd0e171e23cc140d8f65ea6581dd443f106269e6acbc00c1
SH256 hash:
a7533237ed443e0bfd11c8ec0ef28bdc29d77219478f28834abd95869f3f3cd1
MD5 hash:
6580affdffcc9569a47c2a2013c463b5
SHA1 hash:
bf32c2f30b3ce3f6eb32e4c541db9dfdd7b4d8f7
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/35054249-5a2c-4345-a5f8-0e806577e303/
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/4b35770dcf989100330750d55f71816bcad48120b24a9790ce49b8af3fec3b20

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.

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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