MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3251a40b247e2a5428a63e66306667d8fb630f56b0b6d49afd05ed72adcdd731. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3251a40b247e2a5428a63e66306667d8fb630f56b0b6d49afd05ed72adcdd731
SHA3-384 hash: 9496e6d28c3bacac09689e7ce349fe24a9164d8c8ca69c841592ca4dc16a3b59ff641b7be800f1d729f5b88515b8667d
SHA1 hash: 5f6c867256b6aa2e50cce716de471be2f86eca6f
MD5 hash: 144a9bc7708e1298c219c4406efe7b69
humanhash: uranus-enemy-michigan-triple
File name:144a9bc7708e1298c219c4406efe7b69.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:2'465'280 bytes
First seen:2020-10-27 15:19:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:EQ/heQ6GkRUd16/rm6uvvlnh7cQd+uTa0eLIJZlxJUTD43zYdEv/Ukze1R8RPuhE:E
Threatray 406 similar samples on MalwareBazaar
TLSH 35B55A3D6D8826A31177E277A4FA0687FDA4618673790C4F02C32B496D4AF163E9734E
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Masslogger
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79991/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a window
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/513848
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
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)
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 306050 Sample: QZ0gaAlf0Z.exe Startdate: 27/10/2020 Architecture: WINDOWS Score: 100 48 Antivirus detection for dropped file 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 9 other signatures 2->54 6 QZ0gaAlf0Z.exe 1 4 2->6         started        10 vlc.exe 1 2->10         started        12 vlc.exe 2->12         started        process3 file4 32 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 6->32 dropped 56 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 6->56 58 Injects a PE file into a foreign processes 6->58 14 QZ0gaAlf0Z.exe 15 2 6->14         started        18 QZ0gaAlf0Z.exe 6->18         started        20 QZ0gaAlf0Z.exe 6->20         started        22 QZ0gaAlf0Z.exe 6->22         started        24 vlc.exe 14 2 10->24         started        26 vlc.exe 10->26         started        28 vlc.exe 2 12->28         started        30 vlc.exe 12->30         started        signatures5 process6 dnsIp7 34 elb097307-934924932.us-east-1.elb.amazonaws.com 50.19.252.36, 49733, 80 AMAZON-AESUS United States 14->34 36 nagano-19599.herokussl.com 14->36 38 api.ipify.org 14->38 60 Tries to steal Mail credentials (via file access) 14->60 40 174.129.214.20, 49736, 80 AMAZON-AESUS United States 24->40 44 2 other IPs or domains 24->44 62 Tries to harvest and steal browser information (history, passwords, etc) 24->62 42 54.235.169.38, 49737, 80 AMAZON-AESUS United States 28->42 46 2 other IPs or domains 28->46 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3251a40b247e2a5428a63e66306667d8fb630f56b0b6d49afd05ed72adcdd731/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-10-27 11:43:17 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gji2iczepyvfikfghztdazth3d5wgd2wwc3njgx5axwxflon24yq._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
08c7131cac4c6c62004d8b2e3ce0b85d1b35e7325f753a865206814cd87ecdf4
MassLogger
25f48722bf24e935d7bdca104b416f87424ced29dfec2fbebc817725f09af5f1
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610ed2ab81dda401cd838073f80b2d217c2a5bb8f6b35b32c6d71ed67ea4483b
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6bcaa05bb24f934bc0b68c8475610a3a0c1877e279ab50d9fe75144cb369fd1e
MassLogger
8ea1d5e023c174a65c047ecf0f633ef66ba5adfd58ff0cc09ad084fd31f84278
MassLogger
d8aebda89bb5717256e78b44dd9e9ef54179d3590f7a6125da452e877c083c48
MassLogger
e1392a3d2fb4e8f4642bac6694948fc8ceeb970fc5acce7c04b4d97352122be8
MassLogger
e576e88eba32ee86d13bd2d490595abe936b78955d193d5523f0f5ad23c5ec9c
MassLogger
f23b9e7560ded009508ff2a4dd75507d7bf087ad69c47fc5320af052d95fa814
MassLogger
f8776b137f7c04fd40d7b3739011710eedbfe4472e013904300ca6ebc93a3c37
MassLogger
+ 396 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger persistence spyware stealer
Link:
https://tria.ge/reports/201027-1g6zh6akpn/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
MassLogger
MassLogger Main Payload
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3251a40b247e2a5428a63e66306667d8fb630f56b0b6d49afd05ed72adcdd731

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: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.

Web download

MassLogger

Executable exe 3251a40b247e2a5428a63e66306667d8fb630f56b0b6d49afd05ed72adcdd731

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/79991/
  
URLhaus
https://urlhaus.abuse.ch/url/752072/
  
Delivery method
Distributed via web download

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