MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e66fe8dc103a47069c3a56658a72e62e4c17a3d1ed1fbf76185ebd246df7823f. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e66fe8dc103a47069c3a56658a72e62e4c17a3d1ed1fbf76185ebd246df7823f
SHA3-384 hash: ddc2ebb8a0d8d608741d01b725c3056086748a468c7d4bc0d42ef563e427b5a1e2fc404c43575e8c3bd00afc4b9e7b13
SHA1 hash: eda7524f10ed1e2ef5d34265023fc1f84b9a6dcf
MD5 hash: fefb56014a9cd5fc500beff6fe23c393
humanhash: summer-orange-batman-wisconsin
File name:vygtHoQaI1KaBVp.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'004'032 bytes
First seen:2020-12-13 08:32:18 UTC
Last seen:2020-12-13 10:33:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:JWd0Dp30+P4WSjQtsp63WJE4lpftvx0XmzEVX/8Nv:u0D9rP4dQfQFl9t50ZVv6
TLSH 95259D9D727075DEC427C9F3CAE81C68AA606C66471F8203B03735A9A93D997DF143E2
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: se2e-iad1.servconfig.com
Sending IP: 173.231.248.11
From: Mr. Sales <info@alhussainipackages.comt>
Subject: Attached T/T copy for payment.
Attachment: QWEN964391.rar (contains "vygtHoQaI1KaBVp.exe")

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

Intelligence

File Origin
# of uploads :
2
# of downloads :
581
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
vygtHoQaI1KaBVp.exe
Verdict:
Malicious activity
Analysis date:
2020-12-13 08:34:42 UTC
Tags:
evasion
Link:
https://app.any.run/tasks/f21bbf03-86eb-4eab-9217-2de92a5af828

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/107862/
Detection(s):
SecuriteInfo.com.ArtemisFEFB56014A9C.31857.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Enabling autorun by creating a file
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/561375
Signature
Adds a directory exclusion to Windows Defender
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
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 access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 329777 Sample: vygtHoQaI1KaBVp.exe Startdate: 13/12/2020 Architecture: WINDOWS Score: 100 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for dropped file 2->38 40 Sigma detected: Scheduled temp file as task from temp location 2->40 42 10 other signatures 2->42 8 vygtHoQaI1KaBVp.exe 6 2->8         started        process3 file4 24 C:\Users\user\AppData\Roaming\yUGVefG.exe, PE32 8->24 dropped 26 C:\Users\user\AppData\Local\...\tmpC4BE.tmp, XML 8->26 dropped 28 C:\Users\user\...\vygtHoQaI1KaBVp.exe.log, ASCII 8->28 dropped 44 Detected unpacking (changes PE section rights) 8->44 46 Detected unpacking (overwrites its own PE header) 8->46 48 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->48 50 Injects a PE file into a foreign processes 8->50 12 vygtHoQaI1KaBVp.exe 15 2 8->12         started        16 schtasks.exe 1 8->16         started        signatures5 process6 dnsIp7 30 smtp.gmail.com 173.194.69.108, 49735, 587 GOOGLEUS United States 12->30 32 elb097307-934924932.us-east-1.elb.amazonaws.com 54.221.253.252, 49731, 80 AMAZON-AESUS United States 12->32 34 2 other IPs or domains 12->34 52 Tries to steal Mail credentials (via file access) 12->52 54 Tries to harvest and steal browser information (history, passwords, etc) 12->54 56 Adds a directory exclusion to Windows Defender 12->56 18 powershell.exe 25 12->18         started        20 conhost.exe 16->20         started        signatures8 process9 process10 22 conhost.exe 18->22         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e66fe8dc103a47069c3a56658a72e62e4c17a3d1ed1fbf76185ebd246df7823f/
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Create hunting rule
Status:
Malicious
First seen:
2020-12-13 00:20:31 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4zx6rxaqhjdqnhb2kzsyu4xgfzgbpi6r5up365qyl26si3pxqi7q._file
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger spyware stealer
Link:
https://tria.ge/reports/201213-7eceydnxn2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
MassLogger
MassLogger Main Payload
Unpacked files
SH256 hash:
e66fe8dc103a47069c3a56658a72e62e4c17a3d1ed1fbf76185ebd246df7823f
MD5 hash:
fefb56014a9cd5fc500beff6fe23c393
SHA1 hash:
eda7524f10ed1e2ef5d34265023fc1f84b9a6dcf
Link:
https://www.unpac.me/results/b6dc8fab-8086-4705-b856-6116b8dafaad/
SH256 hash:
50bb6fe0a7dc5b49e7543c902df7fd3143d43577818c75f8ded3186963ff4849
MD5 hash:
b63d1d61eceecb178b8686da2c748cfd
SHA1 hash:
097e6ec6e498d7dd0497ec788722b78a9cb17a84
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/b6dc8fab-8086-4705-b856-6116b8dafaad/
Parent samples :
a3d5ac40f8cc27fb19a5aeef41569e8c91de45f19609e60af2555fba2540d348
aeaa3fec34944cbad83383e98135ea619ede649f95f31edb2cbf1d8626761582
e66fe8dc103a47069c3a56658a72e62e4c17a3d1ed1fbf76185ebd246df7823f
SH256 hash:
c88a66cbf00b12c88e2b970b8bc220e970e8465e56098ced24e97d42be901b94
MD5 hash:
a60401dc02ff4f3250a749965097e13f
SHA1 hash:
3f22d28fd765f831084cb972a8bd071e421c26a1
Link:
https://www.unpac.me/results/b6dc8fab-8086-4705-b856-6116b8dafaad/
SH256 hash:
483480616831312ef2d431a82392aadad70370dc9da4bcc1d18d72a9c4f33a59
MD5 hash:
5507e43ec1a6c027278949115481b064
SHA1 hash:
e2099b7a96b2db503942c9f105e6ca1f3efd1f8b
Link:
https://www.unpac.me/results/b6dc8fab-8086-4705-b856-6116b8dafaad/
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/e66fe8dc103a47069c3a56658a72e62e4c17a3d1ed1fbf76185ebd246df7823f

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:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
Rule name:Quasar_RAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
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

rar 0f74eca1ba7908837d94b34f5ac8d621b0653e5db4e492a195c027985c193dc5

MassLogger

Executable exe e66fe8dc103a47069c3a56658a72e62e4c17a3d1ed1fbf76185ebd246df7823f

(this sample)

  
Dropped by
MD5 00fd94a73a78f42dfede1ca9f7148be5
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/107862/
  
Dropped by
SHA256 0f74eca1ba7908837d94b34f5ac8d621b0653e5db4e492a195c027985c193dc5

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