MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b5393731fe1fc36d0e188b5e38defd0ba84a865efdd9e944065c1831a412f33. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b5393731fe1fc36d0e188b5e38defd0ba84a865efdd9e944065c1831a412f33
SHA3-384 hash: 90446dfee2ae73a6dc35a3daac7158859c5a7a79f1069b5761a0a8de20527983d2e8bdea3a4580ea2f6ba26ff3abdcca
SHA1 hash: ab9303aa6f5c3f13ad9dc52a25cedc1ffff81a45
MD5 hash: d3d1c599e9be0b80dae0078107f66349
humanhash: social-high-snake-cardinal
File name:SecuriteInfo.com.Malicious_Behavior.SB.29614.19372
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'264'640 bytes
First seen:2022-11-17 19:45:42 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 24576:EpjZnbCkI13pDOx5ZhIthM8pnQPbQ6TU8fMfrIBnG30YCo:EpjZnbCkIFOQthTQDQ3wMTIBn+9
TLSH T14045ADE9B897696EE2B8B27E15F0A540DBB34C720EC1AE2841683DC55D335C3B5319F8
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13097/50/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter SecuriteInfoCom
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
224
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Malicious_Behavior.SB.29614.19372
Verdict:
Malicious activity
Analysis date:
2022-11-17 19:45:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f45537b3-cb6c-4044-afa1-6a8432c060b7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
zgRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/335533/
Detection(s):
SecuriteInfo.com.Malicious_Behavior.SB.29614.19372.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63768f7c2445ecec3cc4cdcb/reports/76012ef1-9823-4dfd-95ec-ca792d22b22d/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d0e2c47f-01b3-486a-8879-8bbcef0ca435
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1116109
Signature
.NET source code contains potential unpacker
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b5393731fe1fc36d0e188b5e38defd0ba84a865efdd9e944065c1831a412f33/
Threat name:
Win32.Infostealer.Maslog
Create hunting rule
Status:
Malicious
First seen:
2022-11-17 17:40:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
17 of 39 (43.59%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jnjzg4y74h6dnuhbrc26hdpp2c5ijkdf57oz5fcamxayggsbf4zq._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger collection spyware stealer
Link:
https://tria.ge/reports/221117-ygys8afe45/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
MassLogger
MassLogger Main payload
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ebfb5359-1fd8-4515-ac1b-45d068ad21c0
Unpacked files
SH256 hash:
4b5393731fe1fc36d0e188b5e38defd0ba84a865efdd9e944065c1831a412f33
MD5 hash:
d3d1c599e9be0b80dae0078107f66349
SHA1 hash:
ab9303aa6f5c3f13ad9dc52a25cedc1ffff81a45
Link:
https://www.unpac.me/results/acd0c6c5-c0eb-4c45-9797-834a0b7b96d2/
Malware family:
MassLogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b5393731fe1/report/overview.html
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/335533/

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