MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85d37e778b87935b7cf08cda721089885e045e50444643074a22b53fa2446bde. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 85d37e778b87935b7cf08cda721089885e045e50444643074a22b53fa2446bde
SHA3-384 hash: 91476f79332bc979dfa9ba3913cfb1e2e16e2c989167f1d234b4e3fd8cef5d953cc918afb6bb9d37987b818911c1f008
SHA1 hash: c2b617377e7cad3fedf33ff38df02eeeee9dcd97
MD5 hash: ca84dc36b3538b4c06ddf4bd5751868e
humanhash: nine-river-batman-pluto
File name:ca84dc36b3538b4c06ddf4bd5751868e.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'247'232 bytes
First seen:2020-11-23 16:09:30 UTC
Last seen:2020-11-23 18:19:56 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 24576:WBh5c+HlRTMIGLWk5YPBGBiUc9GcmYlTRqlTBjFAwqSNECPpTFFfh:
Threatray 554 similar samples on MalwareBazaar
TLSH 00455CF4609E14A2E15F8536A66EBDD802B27987DFCB6C48437CF6611ABF7227E0140D
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
219
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
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
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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/545335
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
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: 321759 Sample: B2gnon0xfg.exe Startdate: 23/11/2020 Architecture: WINDOWS Score: 100 53 Malicious sample detected (through community Yara rule) 2->53 55 Multi AV Scanner detection for dropped file 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 9 other signatures 2->59 7 B2gnon0xfg.exe 1 4 2->7         started        11 vlc.exe 2->11         started        13 vlc.exe 1 2->13         started        process3 file4 27 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 7->27 dropped 29 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 7->29 dropped 31 C:\Users\user\AppData\...\B2gnon0xfg.exe.log, ASCII 7->31 dropped 61 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->61 63 Injects a PE file into a foreign processes 7->63 15 B2gnon0xfg.exe 15 2 7->15         started        19 vlc.exe 2 11->19         started        21 vlc.exe 14 2 13->21         started        23 vlc.exe 13->23         started        signatures5 process6 dnsIp7 33 elb097307-934924932.us-east-1.elb.amazonaws.com 23.21.126.66, 49722, 80 AMAZON-AESUS United States 15->33 43 3 other IPs or domains 15->43 47 Tries to steal Mail credentials (via file access) 15->47 35 54.235.83.248, 49734, 80 AMAZON-AESUS United States 19->35 45 2 other IPs or domains 19->45 49 Tries to harvest and steal browser information (history, passwords, etc) 19->49 37 api.ipify.org 21->37 39 54.243.164.148, 49726, 80 AMAZON-AESUS United States 21->39 41 nagano-19599.herokussl.com 21->41 25 conhost.exe 23->25         started        signatures8 51 May check the online IP address of the machine 37->51 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/85d37e778b87935b7cf08cda721089885e045e50444643074a22b53fa2446bde/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-11-23 11:54:11 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qxjx454lq6jvw7hqrtnheeejrbpaixsqirdegb2kek2t7isenppa._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
1dcfc63f38d7f52434d71f4befe9fdb233ebff022ddc1960ce8747d9c3727a59
MassLogger
5dd8cf7e789bc36a9a069cf42247f758e8900f8913c88e5ac84328d30e6d7c99
MassLogger
657ce0145781e930d93e0cf3953390f98f22323be721a6d44db6342a44aea27f
MassLogger
6cb35d59850a6e43f2b6cfe1de03a41d81ab9bc07bfdb1b4b1f3cadba53d3086
MassLogger
84ff047bcfc4af6e249a5b466477d1b72cf261fc5a40752a62a149158118224e
MassLogger
85e74e088eaf61b95d366932ff738a2c100eef6f07960860028af7d789063330
MassLogger
a4b3f2e56eed3604a93d6f4705bc9631347f5166b661f37bc9ebb074ea5a50d5
MassLogger
ce073fce9de335c288fe205d5bf7fbdd9fd3ecc718821116dbad098f176a69de
MassLogger
d40978f6bcf9982f5d3147ce9717eb72435068525b91cad816cafd7cb4711bbf
MassLogger
d6b834570825a606942ff096f5ad3df33f58082be5a68bab447bc9af4b114e95
MassLogger
+ 544 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/201123-m4jzd9dj36/
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
Unpacked files
SH256 hash:
55f2d199ab0828d28584a75c691e8c1f770097f7b184fb704c686b62419bcd7c
MD5 hash:
2d7695679fc4b60348e41bf4bc310c95
SHA1 hash:
1993caf639a16f9508e464e5e1c8d38438fb9bc7
Link:
https://www.unpac.me/results/5780dbf9-b8e9-4ea5-9098-b901b7349dba/
SH256 hash:
5ec6d829632d0de1d65280cab9c868f5afb73acd60776ed22fb1dccff0683f8b
MD5 hash:
e709725aa7df1e02cabe52810314eda7
SHA1 hash:
a308f660bd49c884cb43ec923aac30a5320fe469
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/5780dbf9-b8e9-4ea5-9098-b901b7349dba/
Parent samples :
85d37e778b87935b7cf08cda721089885e045e50444643074a22b53fa2446bde
6c3e230390b890ac0864edb2b6f75939371a9fd202b3ab57c57c0b08034d22ec
SH256 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
Link:
https://www.unpac.me/results/5780dbf9-b8e9-4ea5-9098-b901b7349dba/
SH256 hash:
85d37e778b87935b7cf08cda721089885e045e50444643074a22b53fa2446bde
MD5 hash:
ca84dc36b3538b4c06ddf4bd5751868e
SHA1 hash:
c2b617377e7cad3fedf33ff38df02eeeee9dcd97
Link:
https://www.unpac.me/results/5780dbf9-b8e9-4ea5-9098-b901b7349dba/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/85d37e778b87935b7cf08cda721089885e045e50444643074a22b53fa2446bde

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.

Web download

MassLogger

Executable exe 85d37e778b87935b7cf08cda721089885e045e50444643074a22b53fa2446bde

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/826484/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/105321/

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