MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b678f8fc8345839947b67e710f534a46b7bf435187d2d31d89c51e687af9dea4. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b678f8fc8345839947b67e710f534a46b7bf435187d2d31d89c51e687af9dea4
SHA3-384 hash: 3087d16a525510195afe4d869d06cfb6e7e3f40feb015031c5698c842d416d1e2e1f472c0f44e427b8246900cbc43209
SHA1 hash: 5fc6774d26d9b136f6dd624f7c1b8701dbbd254a
MD5 hash: 4c42d839c6145a11f4207f76e761815b
humanhash: black-pennsylvania-maine-seventeen
File name:4c42d839c6145a11f4207f76e761815b.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:788'992 bytes
First seen:2020-11-17 07:19:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:/3Aw+tRvbIceZtQcidfdZBGSo+18sMmBNM/k:H+rvbIcIVm4Sp1SmBN
Threatray 31 similar samples on MalwareBazaar
TLSH F9F4AD47FBC58F40E425B9F702E9EE58A371F8CB16108B47171EA41566A32E1BE0D36E
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.35248836.24652.7991.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Running batch commands
Creating a process with a hidden window
Creating a file
Launching cmd.exe command interpreter
Creating a process from a recently created file
Result
Verdict:
MALICIOUS
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.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/539051
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
Adds a directory exclusion to Windows Defender
Creates an undocumented autostart registry key
Drops PE files to the startup folder
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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)
Uses cmd line tools excessively to alter registry or file data
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 318619 Sample: XnqUVIgQ5g.exe Startdate: 17/11/2020 Architecture: WINDOWS Score: 100 69 Malicious sample detected (through community Yara rule) 2->69 71 Multi AV Scanner detection for dropped file 2->71 73 Multi AV Scanner detection for submitted file 2->73 75 9 other signatures 2->75 9 XnqUVIgQ5g.exe 4 2->9         started        process3 file4 57 C:\Users\user\AppData\...\XnqUVIgQ5g.exe.log, ASCII 9->57 dropped 87 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->87 13 cmd.exe 1 9->13         started        15 cmd.exe 2 9->15         started        signatures5 process6 file7 19 chrome.exe.exe 3 13->19         started        22 conhost.exe 13->22         started        59 C:\ProgramData\Microsoft\...\chrome.exe.exe, PE32 15->59 dropped 67 Drops PE files to the startup folder 15->67 24 conhost.exe 15->24         started        26 conhost.exe 15->26         started        signatures8 process9 signatures10 77 Uses cmd line tools excessively to alter registry or file data 19->77 79 Adds a directory exclusion to Windows Defender 19->79 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->81 83 Injects a PE file into a foreign processes 19->83 28 chrome.exe.exe 15 2 19->28         started        32 cmd.exe 1 19->32         started        34 cmd.exe 19->34         started        36 8 other processes 19->36 process11 dnsIp12 61 elb097307-934924932.us-east-1.elb.amazonaws.com 23.21.126.66, 49706, 80 AMAZON-AESUS United States 28->61 63 192.168.2.1 unknown unknown 28->63 65 2 other IPs or domains 28->65 89 Tries to steal Mail credentials (via file access) 28->89 91 Tries to harvest and steal browser information (history, passwords, etc) 28->91 93 Adds a directory exclusion to Windows Defender 28->93 38 powershell.exe 28->38         started        95 Uses cmd line tools excessively to alter registry or file data 32->95 40 reg.exe 1 1 32->40         started        43 conhost.exe 32->43         started        45 conhost.exe 34->45         started        47 reg.exe 34->47         started        49 conhost.exe 36->49         started        51 reg.exe 36->51         started        53 conhost.exe 36->53         started        55 12 other processes 36->55 signatures13 process14 signatures15 85 Creates an undocumented autostart registry key 40->85
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b678f8fc8345839947b67e710f534a46b7bf435187d2d31d89c51e687af9dea4/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Suspicious
First seen:
2020-11-16 14:32:48 UTC
AV detection:
27 of 48 (56.25%)
Threat level:
  5/5
Verdict:
unknown
Similar samples:
079a0f977b60a6115bcddb387d8783eeea8cdd7678369c01d0e7b8a6071bf123
MassLogger
0e770b4b1dff63afb16c1ca24f74e45905ab4e9baa1cd7ec48dada2deb252d8f
MassLogger
3ba094f9ee7f050b817b94daad2e9b8334ecf138d474d54c993b2c3737c3eb34
MassLogger
48d549e9bbe11f4e45cd39a99f3668743076c63361d1e7fd7dedcd361b4cf368
MassLogger
75bc87dafaa424cba64308b349fc324d263e2a3e267c59962a79da9005caafb4
MassLogger
77fb17512bdea82047a24a36b153ef5277e6be10c3dcd16e123468c9d7564176
MassLogger
84e2088ea38d600fd562925b840117483cf4683573e92106c23c19bdfae2f878
MassLogger
aa3ad2bc7de6aab74f28326021d7889b90daf829483251016f388c07fb0b6d48
MassLogger
d51840953f6ba82b4285527d838e0034d9ffa1dc1de94b73ed56e5e0b33e5eb5
MassLogger
fd2a7682f371ab740d8691e13d1ab27f3919414019afd1b6ddf935394c59ba60
MassLogger
+ 21 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/201117-p5dlfl2wjj/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetThreadContext
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 Main Payload
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
4f690f3cf792f24a571f09740cf25d0979bde8c11180a26864056643c30479cd
MD5 hash:
304cc4a1948539064cfec5b70bd83e21
SHA1 hash:
32b3754f52323fd71b8349f01c9dd4bc4fecd880
Link:
https://www.unpac.me/results/e3167aee-0ead-485e-9c30-b80888402c02/
SH256 hash:
542282ed737d2cb55e3cb59d05e58e8dbf6473d63461194a9ba597f0f3eb5d75
MD5 hash:
0ab09caf48c9dcbcbd53aef80493abd2
SHA1 hash:
fd985c8ed98d443fde035be26592b92662b9c5ea
Link:
https://www.unpac.me/results/e3167aee-0ead-485e-9c30-b80888402c02/
SH256 hash:
4f690f3cf792f24a571f09740cf25d0979bde8c11180a26864056643c30479cd
MD5 hash:
304cc4a1948539064cfec5b70bd83e21
SHA1 hash:
32b3754f52323fd71b8349f01c9dd4bc4fecd880
Link:
https://www.unpac.me/results/e3167aee-0ead-485e-9c30-b80888402c02/
SH256 hash:
f9c341679423a3ac010b7da292ab6d1ef0ae7e995cd085ada95e1384ba3af38c
MD5 hash:
b1c72a8e99542c64507470535686ddd9
SHA1 hash:
fe3bec4b6e2b7091db68705feb59090c24c8b6ed
Link:
https://www.unpac.me/results/e3167aee-0ead-485e-9c30-b80888402c02/
SH256 hash:
b678f8fc8345839947b67e710f534a46b7bf435187d2d31d89c51e687af9dea4
MD5 hash:
4c42d839c6145a11f4207f76e761815b
SHA1 hash:
5fc6774d26d9b136f6dd624f7c1b8701dbbd254a
Link:
https://www.unpac.me/results/e3167aee-0ead-485e-9c30-b80888402c02/
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

MassLogger

Executable exe b678f8fc8345839947b67e710f534a46b7bf435187d2d31d89c51e687af9dea4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/804421/
  
Delivery method
Distributed via web download

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