MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5d3f20a5e7fc84496267536833b84b4dce1c5cc168014215f396490c1430857. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f5d3f20a5e7fc84496267536833b84b4dce1c5cc168014215f396490c1430857
SHA3-384 hash: f91ef957b9c0b8e4ce728f615bbf93f27a5bb8019b8c54995ce5f1f6d65f7f5a45b9bc5e557aa324b25ade435a80de9a
SHA1 hash: 7c231eb57d89759e2f16e6b2f2b82eb9e4bb575d
MD5 hash: a763663ba47d847c1cf662ed7a0d483e
humanhash: kitten-lithium-nebraska-freddie
File name:AWfxqwWHtpJvgYx.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'084'416 bytes
First seen:2020-10-08 12:28:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:fuTqApu/4xV5jFdSVBO6sXn7icok5YtcqdvVQfI1zT/T:opuGv6sXnrokWtcq9VQgZT
Threatray 276 similar samples on MalwareBazaar
TLSH 043512512779136ED62C0BFB90E88011D7BBAD2A506DF2D9BEF871EB02B77440091B97
Reporter abuse_ch
Tags:exe MassLogger Yahoo


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: sonic308-10.consmr.mail.ne1.yahoo.com
Sending IP: 66.163.187.33
From: sales sale <ssale7257@yahoo.com>
Subject: : Fwd: Wire Transfer Payment
Attachment: DEN9840.rar (contains "AWfxqwWHtpJvgYx.exe")

MassLogger SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
96
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/69210/
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
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/485352
Signature
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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 Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 295135 Sample: AWfxqwWHtpJvgYx.exe Startdate: 08/10/2020 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 7 other signatures 2->41 7 AWfxqwWHtpJvgYx.exe 6 2->7         started        process3 file4 23 C:\Users\user\AppData\Roaming23coJFE.exe, PE32 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmp68AE.tmp, XML 7->25 dropped 27 C:\Users\user\...\AWfxqwWHtpJvgYx.exe.log, ASCII 7->27 dropped 43 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->43 45 Injects a PE file into a foreign processes 7->45 11 AWfxqwWHtpJvgYx.exe 15 2 7->11         started        15 schtasks.exe 1 7->15         started        17 AWfxqwWHtpJvgYx.exe 7->17         started        19 2 other processes 7->19 signatures5 process6 dnsIp7 29 smtp.yandex.ru 77.88.21.158, 49733, 587 YANDEXRU Russian Federation 11->29 31 elb097307-934924932.us-east-1.elb.amazonaws.com 174.129.214.20, 49726, 80 AMAZON-AESUS United States 11->31 33 3 other IPs or domains 11->33 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal browser information (history, passwords, etc) 11->49 21 conhost.exe 15->21         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f5d3f20a5e7fc84496267536833b84b4dce1c5cc168014215f396490c1430857/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-08 05:00:12 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6xj7ecs6p7eejfrgou3igo4ewtoodromc2abiik7hfsjbqkdbblq._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
2e6b47bbdb9f281c1432dc63d92d67ca891adf87e20edfa456789c8724a4b7b1
MassLogger
3662a3b002337c0da8ad94925e3c183f0a2d35b0932f9d40b89643335f10564d
MassLogger
4d52797ef29c39adff40c2e0e86ed50ba242028a82af1041d8dff12820bf2a5f
MassLogger
5ba4d89aa8ee0209d0f91d406ff67bf77ff78b4639264c1248cb2eb25bde1c32
MassLogger
b2e3be816965fa1326deb7c5536efebe3b514b9fd2aab1b9f67e48fb0c1f81cc
MassLogger
bc0af8fda43937d6a0d717e5be51d3f5a51a67077bc8ca85f031fa5bc08d165a
MassLogger
d8cea078199dbdef51ec7189cf03541bbcbd10c49a133b187348e2a24fe1e2eb
MassLogger
dc0087097e433036c00aaf8751d4cd9dc3e309fdba09c2ee1415a4060aa1cced
MassLogger
dd5b3d947daecc91aa36e124a5bdcb1cb6b10fdb2d905a9a1e067bd6bdb4065b
MassLogger
fc8f5c635abe5534833683141ae57470c09a246eb290895ce748d1bede405c25
MassLogger
+ 266 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
spyware
Link:
https://tria.ge/reports/201008-4elf2f3mls/
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
Unpacked files
SH256 hash:
f5d3f20a5e7fc84496267536833b84b4dce1c5cc168014215f396490c1430857
MD5 hash:
a763663ba47d847c1cf662ed7a0d483e
SHA1 hash:
7c231eb57d89759e2f16e6b2f2b82eb9e4bb575d
Link:
https://www.unpac.me/results/6ad9b6e3-4ad1-4862-a3d4-3eaad194385d/
SH256 hash:
3769315b4dc8a3cfe6e04dece90e21287711aa8c0c3f4acba971f035543ac3cd
MD5 hash:
fee79c86df2e533bc3e4444d61fbd65f
SHA1 hash:
351cf85de6bc65709621842a9ff59bd0323dc277
Link:
https://www.unpac.me/results/6ad9b6e3-4ad1-4862-a3d4-3eaad194385d/
SH256 hash:
607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b
MD5 hash:
a90baadadf904455325f7bc787185c7b
SHA1 hash:
7d833bb819d638008c98be469b05db2feaf201cd
Link:
https://www.unpac.me/results/6ad9b6e3-4ad1-4862-a3d4-3eaad194385d/
SH256 hash:
47b3abe130a12f1389e9cbb5a5bd52ff66d83bafde0e9f6d8361426af2bb6187
MD5 hash:
96aa5d24d67e692588233e936b15a8c0
SHA1 hash:
877a276d4b471068e6a35ee5d7fd2b0900a82120
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/6ad9b6e3-4ad1-4862-a3d4-3eaad194385d/
Parent samples :
dd5b3d947daecc91aa36e124a5bdcb1cb6b10fdb2d905a9a1e067bd6bdb4065b
f5d3f20a5e7fc84496267536833b84b4dce1c5cc168014215f396490c1430857
703698c23e6a2e0a7fa23c5868bb97bccdca0389b47b0ea33a013a959a4a83e6
21ada34a203f6a238393d69d9c0aebc680f65e9eb0a9bc472f558709e85c88ee
90485e8e45ddd80ceb63662e5744c7c834627028fa515442f93a332a34f54ba2
96c020d574c159341ab1d2dd8029637423bf01286bf930a34a5c9af605d01532
3a332f06a7eef64772601149bd24283ad905cafc1aac7b20035a719ff30bb257
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/f5d3f20a5e7fc84496267536833b84b4dce1c5cc168014215f396490c1430857

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.

Malspam

MassLogger

rar 97e4d67793e1e037015e211a015eb99237c999c772159e5aa9ab886b8ed31946

MassLogger

Executable exe f5d3f20a5e7fc84496267536833b84b4dce1c5cc168014215f396490c1430857

(this sample)

  
Dropped by
MD5 5652345d1ec5369d534879c3ac3fa5cc
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/69210/
  
Dropped by
SHA256 97e4d67793e1e037015e211a015eb99237c999c772159e5aa9ab886b8ed31946

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