MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 610ed2ab81dda401cd838073f80b2d217c2a5bb8f6b35b32c6d71ed67ea4483b. 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: 8


Intelligence 8 IOCs YARA 6 File information Comments
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SHA256 hash: 610ed2ab81dda401cd838073f80b2d217c2a5bb8f6b35b32c6d71ed67ea4483b
SHA3-384 hash: 40734eaa30ab27c9bdebcc60407c5c2f338386bf327c84a653c129b4a63cc94989a97b1deed8dd06e93e3e9f2112d138
SHA1 hash: 199253e37982e57a1d11a89e2db5d2954fa7fa67
MD5 hash: 2556740d4c872be421140789489f6789
humanhash: violet-fanta-network-kentucky
File name:2556740d4c872be421140789489f6789.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:2'520'576 bytes
First seen:2020-10-26 16:00:15 UTC
Last seen:Never
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:rPxODuZYjnZUdSkGytLFOSIlmulIR1vs6npTvZog9Tkls0F1cH4Xd+12mjZf/Gl1:
Threatray 399 similar samples on MalwareBazaar
TLSH 1DC56C3D6D8826A35177E277A4FA0687FEA4618673790C4F02C32B486D4AF163E9734D
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/79390/
Detection(s):
SecuriteInfo.com.Generic.mg.2556740d4c872be4.13764.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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/512345
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large strings
.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)
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: 305381 Sample: U5tnZ37eY5.exe Startdate: 26/10/2020 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for dropped file 2->42 44 Antivirus / Scanner detection for submitted sample 2->44 46 12 other signatures 2->46 6 U5tnZ37eY5.exe 1 4 2->6         started        10 vlc.exe 1 2->10         started        12 vlc.exe 2->12         started        process3 file4 24 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 6->24 dropped 48 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 6->48 14 U5tnZ37eY5.exe 15 2 6->14         started        18 U5tnZ37eY5.exe 6->18         started        50 Injects a PE file into a foreign processes 10->50 20 vlc.exe 14 2 10->20         started        22 vlc.exe 2 12->22         started        signatures5 process6 dnsIp7 26 elb097307-934924932.us-east-1.elb.amazonaws.com 54.225.66.103, 49738, 80 AMAZON-AESUS United States 14->26 28 192.168.2.1 unknown unknown 14->28 34 2 other IPs or domains 14->34 52 Tries to steal Mail credentials (via file access) 14->52 30 23.21.252.4, 49742, 80 AMAZON-AESUS United States 20->30 36 2 other IPs or domains 20->36 54 Tries to harvest and steal browser information (history, passwords, etc) 20->54 32 54.235.182.194, 49746, 80 AMAZON-AESUS United States 22->32 38 2 other IPs or domains 22->38 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/610ed2ab81dda401cd838073f80b2d217c2a5bb8f6b35b32c6d71ed67ea4483b/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2020-10-26 16:04:05 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mehnfk4b3wsadtmdqbz7qcznef6cuw5y62zvwmwg24pnm7veja5q._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
52610d8b6b7199cca5c5bb423edc65f316e8ab960774aa7348490899c125bcaf
MassLogger
553ad8c805d4151e154177bb4fbb1678711306d8eefba081ec36bf0518d4e88f
MassLogger
6bcaa05bb24f934bc0b68c8475610a3a0c1877e279ab50d9fe75144cb369fd1e
MassLogger
8ea1d5e023c174a65c047ecf0f633ef66ba5adfd58ff0cc09ad084fd31f84278
MassLogger
9c4a2d8473718bdb1725450b6f0567098006b9aa89fbd913acab1bab0857143d
MassLogger
ab73e18e008df040137f633b32284b74ef48e5c603178c41287b5a1196e52943
MassLogger
c7573f0e33614200aabd85a18762922a3911f96f27f14829b3a36e325aed2d03
MassLogger
c7f039cff52a5c1de59fb782259f3fd2054946e9fca03d364f61c7977128dcca
MassLogger
d03792e976baeea6547686ff0fe4ced755f9bad76ee6e3ff3c5f4adf93cbb0f8
MassLogger
e6b8348d96a99fd60ed1532ad98c571e23b3a6b2c991ad9d8243e6c4f3c40454
MassLogger
+ 389 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
spyware stealer family:masslogger persistence
Link:
https://tria.ge/reports/201026-8q87amjrba/
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:
MassLogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/610ed2ab81dda401cd838073f80b2d217c2a5bb8f6b35b32c6d71ed67ea4483b

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Web download

MassLogger

Executable exe 610ed2ab81dda401cd838073f80b2d217c2a5bb8f6b35b32c6d71ed67ea4483b

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/79390/
  
URLhaus
https://urlhaus.abuse.ch/url/752144/
  
Delivery method
Distributed via web download

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