MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f784d412a56ccd414525c22e6b2e7c9482040e89be20fdb1f2e4db0016812ea7. 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: f784d412a56ccd414525c22e6b2e7c9482040e89be20fdb1f2e4db0016812ea7
SHA3-384 hash: 914dbb570401d97e0e8a84b46ca57aae49298bd5abfdb96b53bbbb52131cbf4f60bb2fcd75ccac0e15dc16a34a8822a9
SHA1 hash: b326a29c550dfdad23775ad734c9ca9653078b9f
MD5 hash: 6f3ce8fb3b14b587b32f612292e2ac55
humanhash: virginia-carolina-stairway-stairway
File name:contract document.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:840'704 bytes
First seen:2020-08-28 06:33:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:Mc1b5qWA31N8d+lcQ2ffr3op3hf4E7gNishFuB5EFsapLc0AWTFoK6Wav:MybrA31AsCTY4E7gsiFE5XwYWSKY
Threatray 56 similar samples on MalwareBazaar
TLSH 6A052364A3AEA7AAC6F947FF05ACF19153723910A87BEB1D8E425067791F7007406F13
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mta05.doruk.net.tr
Sending IP: 81.21.172.144
From: bis.export2 <suletas@akademetre.com>
Subject: Amendend Contract
Attachment: contract document.z (contains "contract document.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/52202/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Deleting of the original file
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/453293
Signature
Deletes itself after installation
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
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279017 Sample: contract document.exe Startdate: 28/08/2020 Architecture: WINDOWS Score: 100 35 Multi AV Scanner detection for dropped file 2->35 37 Sigma detected: Scheduled temp file as task from temp location 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 8 other signatures 2->41 8 contract document.exe 7 2->8         started        process3 file4 27 C:\Users\user\AppData\...\cscqYzNqmoZ.exe, PE32 8->27 dropped 29 C:\Users\...\cscqYzNqmoZ.exe:Zone.Identifier, ASCII 8->29 dropped 31 C:\Users\user\AppData\Local\...\tmp6153.tmp, XML 8->31 dropped 33 C:\Users\user\...\contract document.exe.log, ASCII 8->33 dropped 45 Injects a PE file into a foreign processes 8->45 12 contract document.exe 2 8->12         started        14 schtasks.exe 1 8->14         started        16 contract document.exe 8->16         started        18 2 other processes 8->18 signatures5 process6 process7 20 powershell.exe 17 12->20         started        23 conhost.exe 14->23         started        signatures8 43 Deletes itself after installation 20->43 25 conhost.exe 20->25         started        process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f784d412a56ccd414525c22e6b2e7c9482040e89be20fdb1f2e4db0016812ea7/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-28 06:35:06 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=66cnievfntgucrjfyixgwlt4ssbaidujxyqp3mps4tnqafubf2tq._file
Verdict:
unknown
Similar samples:
036c0fbb1ffb23e9bfd4b4834a396d79ec319078865adf3ef75418450cf9fd18
MassLogger
234b2c300af5e4ac2001332e07c2e54bd48dac174cf8b5d0c486a3cc6076043c
MassLogger
4ab00875960cf2aace6c95e245327e7c27ba9cde509afd927ace70756a40c0c8
MassLogger
50cbc0b693b4204caf169db073592dc53b8b1c21b9e71a640ee79692918cdcef
MassLogger
5c48cd3f4eba017d3a0aea873a3ca3bc61bcdc3aa6a52727ee1236ddb885604d
MassLogger
a2938e6462b02115d0579cb8a4294626eb792a781b68175844a5fb26ae6de0b6
MassLogger
bd6650220b7fa539c937c4008df96914a86b1cbaa0098588a9b4ec0175f0c679
MassLogger
cb26b474b4f7be86dc5bf39c595a93d1e3353bd25312d83249dc4e1097df2f3e
MassLogger
dfe001ed1950d612ea59a75c6367629ff0e031853e9f7a12b7f0381a4f20660f
MassLogger
fafa7913ac9ff3330896a63b8db3d8e8f88e35a10de8a96dafa570ed29b537d6
MassLogger
+ 46 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/200828-5rshec2p8j/
Behaviour
Creates scheduled task(s)
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Looks up external IP address via web service
Deletes itself
Reads user/profile data of web browsers
Deletes itself
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/f784d412a56ccd414525c22e6b2e7c9482040e89be20fdb1f2e4db0016812ea7

File information

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

Malspam

MassLogger

zip 3015ce1d2c48a9edba2b6480828c0184cf40cc0114c148c9d9557b7285ddcd7f

MassLogger

Executable exe f784d412a56ccd414525c22e6b2e7c9482040e89be20fdb1f2e4db0016812ea7

(this sample)

  
Dropped by
MD5 7a4dea175cbc043bdef87c98a10cc7e8
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/52202/
  
Dropped by
SHA256 3015ce1d2c48a9edba2b6480828c0184cf40cc0114c148c9d9557b7285ddcd7f

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