MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b78c057366525777ab931d9a4a2962a2df499a6690aae1f3e215097d5adbb458. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b78c057366525777ab931d9a4a2962a2df499a6690aae1f3e215097d5adbb458
SHA3-384 hash: 7ce8caa9f7b529618be98dfc1b1b0ecbf41d24ee3eae506d2fde5ed39afa073c640e89ccb54031c92186f6bb97aad872
SHA1 hash: 2432505bb2273b93659053c83e0b892f63b9105d
MD5 hash: 4eca35a8854e4290dcc797d9556244b4
humanhash: happy-burger-fanta-video
File name:vqmoplwb.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:545'792 bytes
First seen:2020-11-25 20:46:53 UTC
Last seen:2020-11-25 23:06:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:PGu9s6dbO7EuWovs7rg3e5KIObN9BJkIJAVbtYWU:PGEska7EPPc3xIOnAI/3
Threatray 560 similar samples on MalwareBazaar
TLSH E7C4228267996002CE685836C79B94658374465330E3FB6B7CDF06400E9A7E66C8EEDF
Reporter fabjer
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
147
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/105681/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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.
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/547591
Signature
.NET source code references suspicious native API functions
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 322900 Sample: vqmoplwb.exe Startdate: 26/11/2020 Architecture: WINDOWS Score: 100 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for dropped file 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 8 other signatures 2->47 7 vqmoplwb.exe 1 6 2->7         started        11 vlc.exe 2 2->11         started        13 vlc.exe 3 2->13         started        process3 file4 31 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 7->31 dropped 33 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 7->33 dropped 35 C:\Users\user\AppData\...\vqmoplwb.exe.log, ASCII 7->35 dropped 49 Injects a PE file into a foreign processes 7->49 15 vqmoplwb.exe 2 7->15         started        17 vlc.exe 11->17         started        19 vlc.exe 11->19         started        21 vlc.exe 2 13->21         started        signatures5 process6 process7 23 WerFault.exe 23 9 15->23         started        27 WerFault.exe 17->27         started        29 WerFault.exe 9 21->29         started        dnsIp8 39 192.168.2.1 unknown unknown 23->39 37 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 23->37 dropped file9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b78c057366525777ab931d9a4a2962a2df499a6690aae1f3e215097d5adbb458/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-11-25 08:40:38 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w6gak43gkjlxpk4tdwneuklculputgtgscvod47ccuex2ww3wrma._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
31b06ca8f90f735bd3b209e576db1da2a5ab7f661b58f85eaabcde2181978003
MassLogger
4bf8074df54f40439111a17b0f440b02949845eda10af9b6478b33819535f9c3
MassLogger
5dd47f464bc8ffd53265830f42bd4e1bdea24f88f6eaab97896cf52a4c162f20
MassLogger
63a87036c2b530539530402c44995267ad50d4b76db185099407c83923d2ecb3
MassLogger
8f41863057e1e153f0cd2a05c7c508d55dbe6e1e8e0c78b5aea2356a30996c7a
MassLogger
bde085b89e6e50618b1f38f6d889bf9554b11d0a08a82a315e0a66fec7718daf
MassLogger
d0f1b190868c2b25c602e6eee551a39fe677678d6e7dc45eb304fa82a5760799
MassLogger
d5e2e50e17e2571167edb599cd5730f1f1c36a7e25e35010c7584b3306aebda9
MassLogger
e8fedfa7d06811f116ce712ea9e2c96918bc4e168105e092354ebd5f708319b7
MassLogger
e97151ce51e9463bd45ad41571141614fc0ffc8a8cbf2c74f36c20028a769f41
MassLogger
+ 550 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/201125-16qfyy84ks/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
ServiceHost packer
MassLogger
MassLogger Main Payload
Unpacked files
SH256 hash:
b78c057366525777ab931d9a4a2962a2df499a6690aae1f3e215097d5adbb458
MD5 hash:
4eca35a8854e4290dcc797d9556244b4
SHA1 hash:
2432505bb2273b93659053c83e0b892f63b9105d
Link:
https://www.unpac.me/results/c48d80df-3d0f-4b7a-ae3c-5ceb0a1c3355/
SH256 hash:
d0a5fade663a49e5dd0f08f3541548037d8d558e480ddabaa6bc2bd8ed57acd3
MD5 hash:
068686e80a350bdff87ab157a3b8c538
SHA1 hash:
66cfa9a1cac6f3f9e434d61b634a14402cb13903
Link:
https://www.unpac.me/results/c48d80df-3d0f-4b7a-ae3c-5ceb0a1c3355/
SH256 hash:
fb9fb7ef4a8e55ffd198791b0d0942b542636d1cf5d38c4f7763121d0c523273
MD5 hash:
8156436a4e82d1dc24fb25eb7dba20d0
SHA1 hash:
a9512ce2458f44563e75ecfb3f44f570c100f90e
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/c48d80df-3d0f-4b7a-ae3c-5ceb0a1c3355/
SH256 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
Link:
https://www.unpac.me/results/c48d80df-3d0f-4b7a-ae3c-5ceb0a1c3355/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
MassLogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b78c057366525777ab931d9a4a2962a2df499a6690aae1f3e215097d5adbb458

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
Create hunting rule
Author:kevoreilly
Description:MassLogger
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

Word file doc 8f41863057e1e153f0cd2a05c7c508d55dbe6e1e8e0c78b5aea2356a30996c7a

MassLogger

Executable exe b78c057366525777ab931d9a4a2962a2df499a6690aae1f3e215097d5adbb458

(this sample)

  
Dropped by
SHA256 8f41863057e1e153f0cd2a05c7c508d55dbe6e1e8e0c78b5aea2356a30996c7a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/105681/

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