MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 789fe598124777330052b878614fc92d5ec1cb533506aa3690f7ab9f7411e390. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 789fe598124777330052b878614fc92d5ec1cb533506aa3690f7ab9f7411e390
SHA3-384 hash: cfdf6c903e8fffa9f64fa5fa26e26b68b9c1981e115860710cce57795b3d51b46fd0cb1f0d7a10ff29c91f42c04f8758
SHA1 hash: 66a5be043b0e8ed764991bf5eb6e1580e028c9a4
MD5 hash: 2cd8c7aa8d6bc9524b5e5ca6885246de
humanhash: minnesota-hamper-oscar-finch
File name:dekont.pdf.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:805'376 bytes
First seen:2025-02-05 16:46:50 UTC
Last seen:2025-02-05 17:47:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:3UMXe5y/t1u4TRmvy9rabd0QMNIzoLSd+e3hbtj8:BrabXMWkWdvxbtj8
TLSH T12F05F83D18F9212791A5C2A1CFE4CA27F040A8EA31936C25D9E24355471FA5BBDC3E7E
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:exe geo MassLogger TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
481
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
dekont.pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-02-05 16:55:07 UTC
Tags:
gaboongrabber snake keylogger evasion stealer
Link:
https://app.any.run/tasks/b772d595-c123-41f9-a48f-d2f9f716588f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.10533.24911.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a397292dcee78dd8199782
Tags:
underscore snake
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
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
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated obfuscated obfuscated vbnet
Link:
https://www.filescan.io/uploads/67a39618dd1252c467bbb9de/reports/cca45abd-890d-4331-910c-e2546327ca9a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/789fe598124777330052b878614fc92d5ec1cb533506aa3690f7ab9f7411e390
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.
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fd64e8a2-f403-45ad-a0f6-fa1ef1dbba2b
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1607550
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
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
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Double Extension File Execution
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 an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected MassLogger RAT
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/789fe598124777330052b878614fc92d5ec1cb533506aa3690f7ab9f7411e390
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/789fe598124777330052b878614fc92d5ec1cb533506aa3690f7ab9f7411e390/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2025-02-05 14:10:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pcp6lgasi53tgacsxb4gct6jfvpmds2tgudkunuq66vz65ar4oia._file
Verdict:
malicious
Label(s):
snakekeylogger
Create hunting rule
unknown_loader_037
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/250205-val93axkar/
Behaviour
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
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
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/c7811330-fc19-4ae2-8a8e-e1d7f939eff0
Unpacked files
SH256 hash:
789fe598124777330052b878614fc92d5ec1cb533506aa3690f7ab9f7411e390
MD5 hash:
2cd8c7aa8d6bc9524b5e5ca6885246de
SHA1 hash:
66a5be043b0e8ed764991bf5eb6e1580e028c9a4
Detections:
win_gaboongrabber_w0
Create hunting rule
Link:
https://www.unpac.me/results/188bd25f-90bf-4f2b-8bca-6c438d4acb63/
SH256 hash:
111460160a72bcf4e1f96b49b8da34a8cd7d75ab9f6be0c3f0edf907ed4b43dc
MD5 hash:
b2781554f997993d9c9b69c0b449008e
SHA1 hash:
2e0bfed91237f7aa83d5bfba2f5f9ed2dcf4bf52
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/188bd25f-90bf-4f2b-8bca-6c438d4acb63/
SH256 hash:
e712bcd56fe64742c0f674f3acff83490f8103c260ea3389f56151b5066b7cd3
MD5 hash:
7bad4197d1ae020c9049a782eb9a71d2
SHA1 hash:
e1253047ea92beb7d161b106765ad8b03bc86b1e
Link:
https://www.unpac.me/results/188bd25f-90bf-4f2b-8bca-6c438d4acb63/
SH256 hash:
bac64aae1d890a96bfab5f81399f42efcd5aaf214b87a9a398f72b3da4c4fcfe
MD5 hash:
e7ec2e2a866af73584da7ede5e287f21
SHA1 hash:
fb138c30c83fb6a6924d6f88cd3f3c6660ec35af
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/188bd25f-90bf-4f2b-8bca-6c438d4acb63/
Parent samples :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:
Malicious
Link:
https://www.vmray.com/analyses/_mb/789fe5981247/report/overview.html
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/789fe598124777330052b878614fc92d5ec1cb533506aa3690f7ab9f7411e390

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_gaboongrabber_w0
Create hunting rule
Author:Lena Yu aka LambdaMamba
Description:Detects GaboonGrabber that grabs its embedded resource to stage further payloads.
Reference:https://any.run/cybersecurity-blog/reverse-engineering-snake-keylogger/

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

Comments