MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 677e6a668cdcfbc698dccca98c79caef7b7b82ced81da5e405fb9b0f809e647f. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 677e6a668cdcfbc698dccca98c79caef7b7b82ced81da5e405fb9b0f809e647f
SHA3-384 hash: 471e90ccbed5a5bfbf4c951690fc0de6f4bf94adb490b0bcdc1925ef063f72ed4c6a46f320306d16e15183c7eb47ea5c
SHA1 hash: bfb1dc3dad8cca248deaff4081d74b25e43ffa69
MD5 hash: 6d90583491aa9c428bf94f4f8f4b60fd
humanhash: leopard-washington-six-kansas
File name:Our Purchase Order.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'171'968 bytes
First seen:2020-11-09 15:52:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:ro57cvXsmI0y7mjWrtOiTt9atbzIglj8vzvmYQ9rUvS6N6R/LJMZKiILaO:9vXg0EmDut9czMvTmYirZ6NA/LJMkiA
Threatray 525 similar samples on MalwareBazaar
TLSH E745CE2887958F5FD63903768020D28047F981D15276FBDA2DC094FF9AEA741EB6B1CE
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: ect.ecttelecom.com
Sending IP: 192.232.226.101
From: sales <sales3@steelpipeskzn.com>
Subject: New Order Inquiry...
Attachment: Our Purchase Order.zip (contains "Our Purchase Order.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
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/526779
Signature
Adds a directory exclusion to Windows Defender
Initial sample is a PE file and has a suspicious name
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)
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
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: 312483 Sample: Our Purchase Order.exe Startdate: 09/11/2020 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for dropped file 2->40 42 Sigma detected: Scheduled temp file as task from temp location 2->42 44 12 other signatures 2->44 8 Our Purchase Order.exe 7 2->8         started        process3 file4 24 C:\Users\user\AppData\Roaming\IdlUbcYea.exe, PE32 8->24 dropped 26 C:\Users\...\IdlUbcYea.exe:Zone.Identifier, ASCII 8->26 dropped 28 C:\Users\user\AppData\Local\...\tmpFC97.tmp, XML 8->28 dropped 30 C:\Users\user\...\Our Purchase Order.exe.log, ASCII 8->30 dropped 46 Injects a PE file into a foreign processes 8->46 12 Our Purchase Order.exe 15 2 8->12         started        16 schtasks.exe 1 8->16         started        signatures5 process6 dnsIp7 32 elb097307-934924932.us-east-1.elb.amazonaws.com 54.235.83.248, 49720, 80 AMAZON-AESUS United States 12->32 34 nagano-19599.herokussl.com 12->34 36 api.ipify.org 12->36 48 Tries to steal Mail credentials (via file access) 12->48 50 Tries to harvest and steal browser information (history, passwords, etc) 12->50 52 Adds a directory exclusion to Windows Defender 12->52 18 powershell.exe 26 12->18         started        20 conhost.exe 16->20         started        signatures8 process9 process10 22 conhost.exe 18->22         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/677e6a668cdcfbc698dccca98c79caef7b7b82ced81da5e405fb9b0f809e647f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-11-09 10:14:23 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m57guzum3t54ngg4zsuyy6ok555xxawo3ao2lzaf7onq7ae6mr7q._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
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fc8f5c635abe5534833683141ae57470c09a246eb290895ce748d1bede405c25
MassLogger
+ 515 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger spyware stealer
Link:
https://tria.ge/reports/201109-bdmyl5sq66/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
MassLogger
MassLogger Main Payload
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/677e6a668cdcfbc698dccca98c79caef7b7b82ced81da5e405fb9b0f809e647f

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_gcch
Create hunting rule
Author:govcert_ch
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
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.

Malspam

MassLogger

zip 4cfa36efe983e4d47ac194eb602e67dc598345995d1935ae5c19e10d608b6b51

MassLogger

Executable exe 677e6a668cdcfbc698dccca98c79caef7b7b82ced81da5e405fb9b0f809e647f

(this sample)

  
Dropped by
MD5 4f2dfc800586f435611ffa3f222461f6
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 4cfa36efe983e4d47ac194eb602e67dc598345995d1935ae5c19e10d608b6b51

Comments