MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3d81f2b70ab7f9d3e3ce9092c9de4d3c8df30b7852d4f2604aae4d181ebd08db. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments

SHA256 hash: 3d81f2b70ab7f9d3e3ce9092c9de4d3c8df30b7852d4f2604aae4d181ebd08db
SHA3-384 hash: 573ceab4d312e11113cb07865c5edc33b6c5fda447981353daec7e168a3cda057f082048d1f8fb2eea0c0a14505530b0
SHA1 hash: a3afaecd507b81911d41afe0f3e55de2607c71ce
MD5 hash: 0ca3d1e7105cbdc69c2c593e044341c7
humanhash: jupiter-floor-bluebird-september
File name:DHL.Customer_Shipment_form.pdf.bat
Download: download sample
Signature MassLogger
File size:189'952 bytes
First seen:2025-04-04 09:04:26 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 3072:zzc2DhDBc0BACvhwSF7aJYfOgwW7Dlh03JWiAAN1oJwszT3SuoD:a0moF+ifOgwW1hwd1N1k5zjD
Threatray 3'777 similar samples on MalwareBazaar
TLSH T151043A183758CA1BE6AC87B9E0945080D7F48161A70FFFDFAEC270FA2C82799D519157
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
Reporter abuse_ch
Tags:bat DHL exe MassLogger

Intelligence


File Origin
# of uploads :
1
# of downloads :
190
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL.Customer_Shipment_form.pdf.bat
Verdict:
Malicious activity
Analysis date:
2025-04-04 09:44:31 UTC
Tags:
snake keylogger evasion stealer ims-api generic

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Launching a process
Sending an HTTP GET request
Reading critical registry keys
Creating a window
Unauthorized injection to a system process
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade obfuscated
Result
Threat name:
MSIL Logger, MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.PureLogStealer
Status:
Malicious
First seen:
2025-04-04 09:05:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Unpacked files
SH256 hash:
3d81f2b70ab7f9d3e3ce9092c9de4d3c8df30b7852d4f2604aae4d181ebd08db
MD5 hash:
0ca3d1e7105cbdc69c2c593e044341c7
SHA1 hash:
a3afaecd507b81911d41afe0f3e55de2607c71ce
Please note that we are no longer able to provide a coverage score for Virus Total.

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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

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 (GUARD_CF)high

Comments