MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20f95b1751f2d7a5ecd7f8eb968cc5decb339f8fbc49c9515278ebfedd1ad159. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 20f95b1751f2d7a5ecd7f8eb968cc5decb339f8fbc49c9515278ebfedd1ad159
SHA3-384 hash: 4553759fab1af45c221ebae9345c62404c0e53da0a0af67d74a8b6d65694a1e33b2bb2ef3c92a169554552febb9388e6
SHA1 hash: 2492dbc016d47b2bd5b6889b101d2061cd953cc8
MD5 hash: 6e457e014242287aa8649c939dc3bae0
humanhash: fillet-cold-maryland-kentucky
File name:6e457e014242287aa8649c939dc3bae0.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'120'256 bytes
First seen:2020-09-20 03:59:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a2db9c8d6397be4202b6dff9fc1d53ad (7 x MassLogger, 5 x AgentTesla, 2 x Formbook)
ssdeep 24576:iFBrny7d7eqq2Z32pi/ZHnJuPjz+l63c2:i4kV2h2pi/zyKej
Threatray 566 similar samples on MalwareBazaar
TLSH 7335B02FB2A05833C523253D9C0B6AB8AD26FE103A18BE466BF5DF4C5F3958274161D7
Reporter abuse_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/63823/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Maria.3.15178.30929.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a file
Reading critical registry keys
Moving a recently created file
Deleting a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/470724
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to detect sleep reduction / modifications
Creates files in alternative data streams (ADS)
Detected unpacking (changes PE section rights)
Drops VBS files to the startup folder
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
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)
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 287795 Sample: TO6DtcKvEt.exe Startdate: 20/09/2020 Architecture: WINDOWS Score: 100 51 Antivirus / Scanner detection for submitted sample 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 Yara detected MassLogger RAT 2->55 57 6 other signatures 2->57 8 TO6DtcKvEt.exe 2->8         started        11 wscript.exe 1 2->11         started        process3 signatures4 67 Writes to foreign memory regions 8->67 69 Allocates memory in foreign processes 8->69 71 Queues an APC in another process (thread injection) 8->71 13 notepad.exe 5 8->13         started        17 bjsbjsf.exe 11->17         started        process5 file6 33 C:\Users\user\AppData\Roaming\...\bjsbjsf.exe, PE32 13->33 dropped 35 C:\Users\user\...\bjsbjsf.exe:Zone.Identifier, ASCII 13->35 dropped 37 C:\Users\user\AppData\Roaming\...\win.vbs, ASCII 13->37 dropped 75 Creates files in alternative data streams (ADS) 13->75 77 Drops VBS files to the startup folder 13->77 19 bjsbjsf.exe 13->19         started        79 Maps a DLL or memory area into another process 17->79 22 bjsbjsf.exe 17->22         started        25 bjsbjsf.exe 17->25         started        signatures7 process8 dnsIp9 59 Antivirus detection for dropped file 19->59 61 Multi AV Scanner detection for dropped file 19->61 63 Detected unpacking (changes PE section rights) 19->63 65 4 other signatures 19->65 27 bjsbjsf.exe 15 6 19->27         started        31 bjsbjsf.exe 19->31         started        39 23.21.126.66, 49729, 80 AMAZON-AESUS United States 22->39 41 nagano-19599.herokussl.com 22->41 43 2 other IPs or domains 22->43 signatures10 process11 dnsIp12 45 elb097307-934924932.us-east-1.elb.amazonaws.com 54.225.66.103, 49717, 80 AMAZON-AESUS United States 27->45 47 192.168.2.1 unknown unknown 27->47 49 2 other IPs or domains 27->49 73 Tries to steal Mail credentials (via file access) 27->73 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/20f95b1751f2d7a5ecd7f8eb968cc5decb339f8fbc49c9515278ebfedd1ad159/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2020-09-17 12:27:00 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ed4vwf2r6ll2l3gx7dvzndgf33fthh4pxre4sukspdv75xi22fmq._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
hawkeyekeylogger
Create hunting rule
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MassLogger
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eeeacd15a922e5b6087678fa760d01d430741727ba41564b3f367723bbd3d8ac
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MassLogger
+ 556 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
ransomware upx spyware stealer family:masslogger
Link:
https://tria.ge/reports/200920-tlwhwmf7w2/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
NTFS ADS
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
UPX packed file
MassLogger
MassLogger log file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/20f95b1751f2d7a5ecd7f8eb968cc5decb339f8fbc49c9515278ebfedd1ad159

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.

Web download

MassLogger

Executable exe 20f95b1751f2d7a5ecd7f8eb968cc5decb339f8fbc49c9515278ebfedd1ad159

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/63823/
  
URLhaus
https://urlhaus.abuse.ch/url/410909/
  
Delivery method
Distributed via web download

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