MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f23b9e7560ded009508ff2a4dd75507d7bf087ad69c47fc5320af052d95fa814. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f23b9e7560ded009508ff2a4dd75507d7bf087ad69c47fc5320af052d95fa814
SHA3-384 hash: edd4c1ad01c7bdf2146432438039e7a877320bf646a3d57f10fc6ec6f4b86aca737a13ea7ef2039a02f82529b915b53f
SHA1 hash: b58f51ac792ed255c514625973b83a169859eaf9
MD5 hash: 43bedaefb72bf41b38ae4b486955b507
humanhash: finch-aspen-queen-nuts
File name:SecuriteInfo.com.Variant.Ursu.920205.30312.18537
Download: download sample
Signature MassLogger
Create hunting rule
File size:525'824 bytes
First seen:2020-09-01 12:34:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:bvwgl+UIN7uDZA+kxT7VMVY67s51zjda/kzG:bvwuZA+4dMb7sHzjd
Threatray 30 similar samples on MalwareBazaar
TLSH 04B4AF987B61CE66C2BC4777D0D65D1443F4C82392FAF786AB9807D109073E69EC23A6
Reporter SecuriteInfoCom
Tags:MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
113
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Variant.Ursu.920205.30312.18537.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a window
Reading critical registry keys
Sending a custom TCP request
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/456556
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Binary contains a suspicious time stamp
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 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 steal Mail credentials (via file access)
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f23b9e7560ded009508ff2a4dd75507d7bf087ad69c47fc5320af052d95fa814/
Threat name:
ByteCode-MSIL.Trojan.BMassKeyLogger
Create hunting rule
Status:
Malicious
First seen:
2020-09-01 10:55:35 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6i5z45la33iasuep6ksn25kqpv57bb5nnhch7rjsblyffwk7vaka._file
Verdict:
unknown
Similar samples:
0a64f93aa274c2da0f686f8ad410699495d1aa8b68efbd5829e95cb226cc97ee
MassLogger
234b2c300af5e4ac2001332e07c2e54bd48dac174cf8b5d0c486a3cc6076043c
MassLogger
249b1438e43913a18e085ec6b3ff767c3091cc55177c7730cfe62ab5bf168309
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7f65935cd55b5a0978bf0a70690462a08d83657a97ddbe6aba871a5496d5f9c5
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ab7cc003aa4d6807236dcd8983804a44a460a462c0e6d4ef70b3030f8ab6b366
MassLogger
bd99f6b970cc52ee725dd1b734a440243655a3fbc1e2304a665b29d41477c25b
MassLogger
c0c4c97332bfb8b5254c089e82c05d0a7d171747b72f991f7e3bdb2ed74856d0
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c0cb41070b74fa0e592f10c6d5312e55009f1cc884bd1c242591bc75c5f9e5eb
MassLogger
c7f039cff52a5c1de59fb782259f3fd2054946e9fca03d364f61c7977128dcca
MassLogger
ed42640da83dda3bf2ed08c414bfd256a82c9a8ef1894a59e3c421b254c59d4d
MassLogger
+ 20 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware
Link:
https://tria.ge/reports/200901-3px8mhg922/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Modifies data under HKEY_USERS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Drops file in Windows directory
Looks up external IP address via web service
Looks up external IP address via web service
Reads user/profile data of web browsers
Reads user/profile data of web browsers
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Backdoor
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f23b9e7560ded009508ff2a4dd75507d7bf087ad69c47fc5320af052d95fa814

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: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 f23b9e7560ded009508ff2a4dd75507d7bf087ad69c47fc5320af052d95fa814

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/450912/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/54001/

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