MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b779eabef9d5148f570bcb451f564bba1519a5616ba8a910ef3768cfe61b2cea. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b779eabef9d5148f570bcb451f564bba1519a5616ba8a910ef3768cfe61b2cea
SHA3-384 hash: fe3c382a4527670db4a33d0ef376cff08ed67f90e88367ca0139e952bb9be7ec00d78a0c505f574270a2da67ce4cd4bd
SHA1 hash: b896fcecbe9e307ed1dbdd7352827875fba50b7f
MD5 hash: 60b5b44b1f5408f7188a0d3c447b2174
humanhash: crazy-jig-potato-fillet
File name:PO 2020-00368.jpg
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'252'864 bytes
First seen:2020-09-24 18:16:47 UTC
Last seen:2020-09-25 07:18:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:BqqHXvbDj/RqcniRJRwjpK0htPfSTYmOKDmUQBb:BqqzDj/CfRwjpFrfvmPDmUQ
Threatray 555 similar samples on MalwareBazaar
TLSH DA456CF239CB8469C7AA163358A0C2C1FA3F37823A41AF0DB66A437C9D2575F571254B
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: xvg0.906.gonbino.ml
Sending IP: 207.154.224.20
From: Kim CIL <admin_vn@cargointlogistics.com>
Subject: SI200188_20200924-011 SHIPPING ARRANGEMENT
Attachment: 20200924-011.xls

MassLogger payload URL:
http://5.149.252.252/9P/PO%202020-00368.jpg

MassLogger SMTP exfil email server:
mail.ziv-investment.com:26

MassLogger SMTP exfil email address:
engine@ziv-investment.com

Intelligence

File Origin
# of uploads :
3
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Masslogger
Create hunting rule
Link:
https://www.capesandbox.com/analysis/65531/
Detection(s):
SecuriteInfo.com.BackDoor.Spy.3770.24817.30024.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Sending a UDP request
Creating a file
Running batch commands
Launching a process
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/474504
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
Drops PE files to the user root directory
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 289699 Sample: PO 2020-00368.jpg Startdate: 24/09/2020 Architecture: WINDOWS Score: 100 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected MassLogger RAT 2->38 40 .NET source code contains method to dynamically call methods (often used by packers) 2->40 42 6 other signatures 2->42 7 PO 2020-00368.exe 9 2->7         started        10 pcalua.exe 1 2->10         started        12 pcalua.exe 1 1 2->12         started        process3 file4 28 C:\Users\user\ublf.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\...\InstallUtil.exe, PE32 7->30 dropped 32 C:\Users\user\ublf.exe:Zone.Identifier, ASCII 7->32 dropped 34 2 other files (1 malicious) 7->34 dropped 14 ublf.exe 2 7->14         started        17 cmd.exe 1 7->17         started        19 ublf.exe 3 10->19         started        process5 signatures6 46 Writes to foreign memory regions 14->46 48 Allocates memory in foreign processes 14->48 50 Injects a PE file into a foreign processes 14->50 21 InstallUtil.exe 14->21         started        23 reg.exe 1 1 17->23         started        26 conhost.exe 17->26         started        52 Multi AV Scanner detection for dropped file 19->52 54 Machine Learning detection for dropped file 19->54 56 Tries to detect virtualization through RDTSC time measurements 19->56 process7 signatures8 44 Creates an autostart registry key pointing to binary in C:\Windows 23->44
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b779eabef9d5148f570bcb451f564bba1519a5616ba8a910ef3768cfe61b2cea/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-09-24 13:03:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w546vpxz2uki6vylzncr6vslxikrtjlbnouksehpg5um7zq3ftva._file
Verdict:
unknown
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1583e4f9d42db06490a42d0a0fe911a0e4d390ad07b9b8f2d8245e675dff0a33
MassLogger
15fca9cc94b9a0632fe98a3a15e0c75d1f3ff2ce42a47d7b9d76217ca4bfca05
MassLogger
36bb4745d0a342a57dbd7c668aed07e956ff166df4864e21b0770e790f734acc
MassLogger
4dfa820d0e37418dbd81c9c217608dac6dc1b59391c0e49839662f522edd26a1
MassLogger
6a47bf03b1ffebac3ef5497af7d67aa562f3c401c3694d8551f7092f7f469313
MassLogger
abb92cc0ee7de64a2e4c8ed099c996bb211dd7645bc78c993d66a7b159ff561e
MassLogger
cac67b5ab04de81f69b8f4f882ad22e26672a61ed96d2e1f69d72f59c36bf401
MassLogger
df049efbfa7ac0b76c8daff5d792c550c7a7a24f6e9e887d01a01013c9caa763
MassLogger
ebb0640f2e9c9893b4dee06e69dc547e19570980e94eaacb0b4e77436966cd0d
MassLogger
fcfc827205cd38cdf997f72b1d58eba51ac12da6ba5939279b626522b11fd938
MassLogger
+ 545 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware persistence spyware stealer family:masslogger
Link:
https://tria.ge/reports/200924-wzf1j17mgn/
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
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
MassLogger
MassLogger log file
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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

Excel file xls 3cb34400272d280f1a8c20bd52402e85d825784620ea42b0e68cf94a4101f0de

MassLogger

Executable exe b779eabef9d5148f570bcb451f564bba1519a5616ba8a910ef3768cfe61b2cea

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/610432/
  
Dropped by
MD5 fa392e8a9d22615b3149434c288d6bbd
  
Dropped by
SHA256 3cb34400272d280f1a8c20bd52402e85d825784620ea42b0e68cf94a4101f0de
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/65531/

Comments