MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bbf5829871a9c0e6348a4cbab3327df93fd5196b611afafef770cf85e85bfd6c. 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: bbf5829871a9c0e6348a4cbab3327df93fd5196b611afafef770cf85e85bfd6c
SHA3-384 hash: 2173658b2fc0a1ebce172fd838ae483b06ea1e347415b78ae4300da99e8b55d4f3f7ac9fcefd9e9293d9e4e5c07dc621
SHA1 hash: 1aa9f423260e4f803e7adf1a9ee7215459c2713f
MD5 hash: 17a8c036feac43b960a86cdf2395beaf
humanhash: oxygen-fourteen-uniform-violet
File name:estado de cuenta.scr
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'884'096 bytes
First seen:2020-08-10 13:16:27 UTC
Last seen:2020-08-10 14:03:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:PqAiiXk+EN630iaLuvvm+/+8uu4NF0m+N0B66MqmpyYUKY7Gp9wo1o9i:PVihpsL/LuHNF0m+8YvU7GTwo1oM
Threatray 689 similar samples on MalwareBazaar
TLSH DA950832F5820114C5690A3584776DF232677EF636A6CA4E658E33796F3339B232B44B
Reporter abuse_ch
Tags:ESP geo MassLogger scr


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: mail.jaroma.com.ec
Sending IP: 186.5.88.211
From: recepcion.documentos@jaroma.com.ec
Subject: Estado de cuenta
Attachment: estado de cuenta.img (contains "estado de cuenta.scr")

Intelligence

File Origin
# of uploads :
2
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Ispy
Create hunting rule
Link:
https://www.capesandbox.com/analysis/42793/
Detection(s):
SecuriteInfo.com.Generic.mg.17a8c036feac43b9.7224.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file in the %AppData% subdirectories
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.evad
Score:
57 / 100
Link:
https://www.joesandbox.com/analysis/416995
Signature
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
Injects a PE file into a foreign processes
Sigma detected: Add file from suspicious location to autostart registry
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 260855 Sample: estado de cuenta.scr Startdate: 10/08/2020 Architecture: WINDOWS Score: 57 32 Yara detected MassLogger RAT 2->32 34 Sigma detected: Add file from suspicious location to autostart registry 2->34 36 Yara detected Costura Assembly Loader 2->36 7 estado de cuenta.exe 7 2->7         started        10 pcalua.exe 1 2->10         started        12 pcalua.exe 1 1 2->12         started        process3 file4 26 C:\Users\user\AppData\Roaming\...\win32.exe, PE32 7->26 dropped 28 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 7->28 dropped 30 C:\Users\user\...\win32.exe:Zone.Identifier, ASCII 7->30 dropped 14 win32.exe 2 7->14         started        17 cmd.exe 1 7->17         started        process5 signatures6 40 Writes to foreign memory regions 14->40 42 Allocates memory in foreign processes 14->42 44 Injects a PE file into a foreign processes 14->44 19 AddInProcess32.exe 14->19         started        21 reg.exe 1 1 17->21         started        24 conhost.exe 17->24         started        process7 signatures8 38 Creates an autostart registry key pointing to binary in C:\Windows 21->38
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bbf5829871a9c0e6348a4cbab3327df93fd5196b611afafef770cf85e85bfd6c/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-10 13:18:08 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xp2yfgdrvhaomnekjs5lgmt57e75kgllmenpv7xxodhyl2c37vwa._file
Verdict:
unknown
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MassLogger
+ 679 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/200810-e294hpanje/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Executes dropped EXE
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/bbf5829871a9c0e6348a4cbab3327df93fd5196b611afafef770cf85e85bfd6c

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.

d6eb7c8a3680bbcd5dba5c32a299467e

MassLogger

Executable exe bbf5829871a9c0e6348a4cbab3327df93fd5196b611afafef770cf85e85bfd6c

(this sample)

  
Dropped by
MD5 d6eb7c8a3680bbcd5dba5c32a299467e
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/42793/

Comments