MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7a844a73345acfd4a047d76088829ba790ae67a7d3a3527feecb290c6dbfc3bd. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7a844a73345acfd4a047d76088829ba790ae67a7d3a3527feecb290c6dbfc3bd
SHA3-384 hash: e44efd2896e231c420e81fb3de69047da09d682443ef45ea7593e290faec41b3d992407984a4e28821023a29bd2d0177
SHA1 hash: c8eaf65d9fa4114fed78dd633809ac3b56f49dd9
MD5 hash: 9bad05f00f53b6404516ec22e3751280
humanhash: potato-iowa-oklahoma-paris
File name:Halkbank,pdf.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'539'584 bytes
First seen:2020-07-29 11:57:21 UTC
Last seen:2020-07-29 13:01:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:RYwutF7Bo8HpTI21wa4ZWEJ8uo43qdFcVfFQl:R1uf7BKZRJ8343UFcVfml
Threatray 825 similar samples on MalwareBazaar
TLSH 4965392679D28424C6580639C0E9ACC27B75BA873B66DB1F30D7134C6E0376FBB0A55B
Reporter abuse_ch
Tags:exe geo Halkbank MassLogger TUR


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: halkbank.com.tr
Sending IP: 185.118.165.225
From: HALKBANK.E-EKSTRE@halkbank.com.tr
Subject: T.HALK BANKASI A.S. 29.07.2020 Hesap Ekstresi
Attachment: Halkbank,pdf.r00 (contains "Halkbank,pdf.exe")

MassLogger SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Fareit-FVT9BAD05F00F53.32082.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/402489
Signature
.NET source code contains very large array initializations
Creates an autostart registry key pointing to binary in C:\Windows
Sigma detected: Add file from suspicious location to autostart registry
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 253620 Sample: Halkbank,pdf.exe Startdate: 29/07/2020 Architecture: WINDOWS Score: 48 29 Yara detected MassLogger RAT 2->29 31 Sigma detected: Add file from suspicious location to autostart registry 2->31 33 .NET source code contains very large array initializations 2->33 7 Halkbank,pdf.exe 7 2->7         started        10 pcalua.exe 1 1 2->10         started        12 pcalua.exe 1 2->12         started        process3 file4 25 C:\Users\user\AppData\...\application.exe, PE32 7->25 dropped 27 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 7->27 dropped 14 cmd.exe 1 7->14         started        16 application.exe 2 7->16         started        process5 process6 18 reg.exe 1 1 14->18         started        21 conhost.exe 14->21         started        23 RegAsm.exe 16->23         started        signatures7 35 Creates an autostart registry key pointing to binary in C:\Windows 18->35
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7a844a73345acfd4a047d76088829ba790ae67a7d3a3527feecb290c6dbfc3bd/
Threat name:
ByteCode-MSIL.Infostealer.Azorult
Create hunting rule
Status:
Malicious
First seen:
2020-07-29 11:59:05 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pkceu4zullh5jich25qirau3u6ik4z5h2orve77ozmuqy3n7yo6q._file
Verdict:
unknown
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MassLogger
+ 815 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware persistence spyware stealer family:masslogger
Link:
https://tria.ge/reports/200729-nekx5wvqhx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetThreadContext
Looks up external IP address via web service
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
MassLogger log file
MassLogger
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7a844a73345acfd4a047d76088829ba790ae67a7d3a3527feecb290c6dbfc3bd

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:masslogger_gcch
Create hunting rule
Author:govcert_ch
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.

Malspam

MassLogger

r00 2e3b5251746c80b5dc7f7c45c6ad164e0b10161894309e7334fa6f1727c01fd7

MassLogger

Executable exe 7a844a73345acfd4a047d76088829ba790ae67a7d3a3527feecb290c6dbfc3bd

(this sample)

  
Dropped by
MD5 918d05fc4696ea68a649f2360042522d
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/34859/
  
Dropped by
SHA256 2e3b5251746c80b5dc7f7c45c6ad164e0b10161894309e7334fa6f1727c01fd7

Comments