MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d31208b71987d8cdbb8affc975333950516b6aa23951020fbd536fa27e1d1f0b. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d31208b71987d8cdbb8affc975333950516b6aa23951020fbd536fa27e1d1f0b
SHA3-384 hash: 7ed6a794999719430970c60fab9a441f99bed5d9b9adf4c2bbaee1f8c3ce7dd4f91b077c9ac2fd31a90500552f731172
SHA1 hash: a410167261194bdb63ee3f2d344d482e5a1f6349
MD5 hash: dbf24b98741e358db7f964753f60a914
humanhash: william-cola-nebraska-glucose
File name:MT103.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:165'888 bytes
First seen:2025-01-27 11:48:16 UTC
Last seen:2025-01-31 18:12:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 1536:Forixn4uqPpOvs7mW5Q5PnxdCwud7bbmGhlrzNMCJB7flr/6Q/dmIkaEPnp9Z+Kc:Y2buKh5727vhllxJvN/dnSPp9tc
TLSH T17CF3912093DF72B7C6E75EB5EC2A2714D6B794876C3A9D5B538862FEE70B30040116A3
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 Anonymous
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
60
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MT103.exe
Verdict:
No threats detected
Analysis date:
2025-01-27 08:34:38 UTC
Tags:
ims-api generic
Link:
https://app.any.run/tasks/de33996c-1d89-45af-b35a-921c8044190d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.8111.4807.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/679772aec61f1594ee68e390/reports/4f4acdb8-6f4b-4d58-a53c-55dea1d27c41/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/d31208b71987d8cdbb8affc975333950516b6aa23951020fbd536fa27e1d1f0b
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/4e271184-d39f-4f42-a99a-6dc7cf8c3679
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1600330
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d31208b71987d8cdbb8affc975333950516b6aa23951020fbd536fa27e1d1f0b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d31208b71987d8cdbb8affc975333950516b6aa23951020fbd536fa27e1d1f0b/
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Create hunting rule
Status:
Malicious
First seen:
2025-01-27 01:03:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2mjarnyzq7mm3o4k77exkmzzkbiww2vchfiqed55knx2e7q5d4fq._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Link:
https://tria.ge/reports/250127-nyz3haxjcx/
Behaviour
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/fa3d1019-e2b3-4fb5-b836-ee3b99393703
Unpacked files
SH256 hash:
3cf0580dc28cae33ce6b0283cb69875fbd59bb04e4a04795c33a5ae1ba8657db
MD5 hash:
e73db6f9200399e53d71b1d0540ae3cc
SHA1 hash:
72a25f1c42220dc320534459363f96bca9f911bb
Detections:
win_masslogger_w0
Create hunting rule
win_404keylogger_g1
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/e60cb662-3d17-4b87-a92f-92205aa411ea/
SH256 hash:
ecb129cce94db8594bc69eda1ead471db15bdd784afc9a2e8adc56ef3bb71888
MD5 hash:
27c52e96a5804196921c61a1c22172ea
SHA1 hash:
45c12029ad318a8240e75305e89b61a06532c8af
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/e60cb662-3d17-4b87-a92f-92205aa411ea/
Parent samples :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 hash:
d31208b71987d8cdbb8affc975333950516b6aa23951020fbd536fa27e1d1f0b
MD5 hash:
dbf24b98741e358db7f964753f60a914
SHA1 hash:
a410167261194bdb63ee3f2d344d482e5a1f6349
Link:
https://www.unpac.me/results/e60cb662-3d17-4b87-a92f-92205aa411ea/
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
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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)

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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