MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d03792e976baeea6547686ff0fe4ced755f9bad76ee6e3ff3c5f4adf93cbb0f8. 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 4 File information Comments

SHA256 hash: d03792e976baeea6547686ff0fe4ced755f9bad76ee6e3ff3c5f4adf93cbb0f8
SHA3-384 hash: f8d58c6054366fa7669437abcc2ef06edf1e8f6c99cfbe9f5e8b8fa7c9709ba712a2f9f552f559b76795d4b4ac9bc415
SHA1 hash: 46c38e2a5377b936739b1562e876fb37878629ff
MD5 hash: 097e02a7620118b5a0571ec84b5e3e30
humanhash: blue-oven-golf-undress
File name:MvZy9A27CiSqZpp.exe
Download: download sample
Signature MassLogger
File size:1'311'744 bytes
First seen:2020-10-23 06:55:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:t8xkG4viAk7GFwzhzU+KSTwdQzlfiuhy2HU2rgVSoL7:Kz4/k7GORU+JNJfiXEUrSoL
Threatray 392 similar samples on MalwareBazaar
TLSH 7755BD0161B5CB0DD2795BF3D0E455F04BBA2C2AD92EE28BBDB27CCA3672B445A41707
Reporter abuse_ch
Tags:exe MassLogger Yahoo


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: sonic309-21.consmr.mail.sg3.yahoo.com
Sending IP: 106.10.244.84
From: Angolan Semba <s.angolan@yahoo.com.sg>
Subject: : Fwd: Wire Transfer Payment
Attachment: PAYMENT - COPY .rar (contains "MvZy9A27CiSqZpp.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
97
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
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
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Connection attempt
Setting a global event handler for the keyboard
Enabling autorun by creating a file
Result
Threat name:
MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 303044 Sample: MvZy9A27CiSqZpp.exe Startdate: 23/10/2020 Architecture: WINDOWS Score: 100 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for dropped file 2->38 40 Sigma detected: Scheduled temp file as task from temp location 2->40 42 10 other signatures 2->42 8 MvZy9A27CiSqZpp.exe 4 2->8         started        process3 file4 24 C:\Users\user\AppData\Roaming\xkIIuYy.exe, PE32 8->24 dropped 26 C:\Users\user\AppData\Local\...\tmp377C.tmp, XML 8->26 dropped 28 C:\Users\user\...\MvZy9A27CiSqZpp.exe.log, ASCII 8->28 dropped 44 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->44 12 MvZy9A27CiSqZpp.exe 15 2 8->12         started        16 schtasks.exe 1 8->16         started        signatures5 process6 dnsIp7 30 smtp.yandex.ru 77.88.21.158, 49732, 587 YANDEXRU Russian Federation 12->30 32 elb097307-934924932.us-east-1.elb.amazonaws.com 23.21.109.69, 49715, 80 AMAZON-AESUS United States 12->32 34 4 other IPs or domains 12->34 46 Tries to steal Mail credentials (via file access) 12->46 48 Tries to harvest and steal browser information (history, passwords, etc) 12->48 50 Adds a directory exclusion to Windows Defender 12->50 18 powershell.exe 25 12->18         started        20 conhost.exe 16->20         started        signatures8 process9 process10 22 conhost.exe 18->22         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-10-23 05:16:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
spyware stealer family:masslogger
Behaviour
Creates scheduled task(s)
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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
Unpacked files
SH256 hash:
23936254bd251591a2fd5899f561954f6bb7968220e2f0185c06b3bb0ed21512
MD5 hash:
6fc2cb96a726e65a275a7cd31ddee3e3
SHA1 hash:
197e8e85226cffadb40a7e0a3d476300287ce294
Detections:
win_masslogger_w0
SH256 hash:
31ce938626ccfb399fe1696710caf46d7ae9eb598b9d7d2aad719b594658469b
MD5 hash:
0aebe46040ceb011e78506d4985fe3de
SHA1 hash:
218ac1e7b14a66c604ec3042f8486bed9cd4c2c1
SH256 hash:
adb90d9bb97678bfc35e06fbb8fb47f35c596bae39d12492d1e9b7b6788608f9
MD5 hash:
325d4e47d3e2c5a04b586b52246b12c9
SHA1 hash:
db78101b8e962c3616e44e86145626ddd9264a81
SH256 hash:
d03792e976baeea6547686ff0fe4ced755f9bad76ee6e3ff3c5f4adf93cbb0f8
MD5 hash:
097e02a7620118b5a0571ec84b5e3e30
SHA1 hash:
46c38e2a5377b936739b1562e876fb37878629ff
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:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:masslogger_gcch
Author:govcert_ch
Rule name:Quasar_RAT_1
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
Author:govcert_ch

File information


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

Malspam

MassLogger

Executable exe d03792e976baeea6547686ff0fe4ced755f9bad76ee6e3ff3c5f4adf93cbb0f8

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments