MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c3ea92bf0620d3126691eb0d463418170b88034e40dab26e8049ea5ceefd1f1. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8c3ea92bf0620d3126691eb0d463418170b88034e40dab26e8049ea5ceefd1f1
SHA3-384 hash: 9b4400c7b6c094be3399a5a234f9298d4e3d8bf0555f8ba09d1a81557dbb645401150fd9e04f04f6a98f58c6abc5d0c5
SHA1 hash: ce401b7451d8129ff11809613a271ef0b31acafc
MD5 hash: cd50dc012cf01749b236f46d8319151a
humanhash: north-music-blue-summer
File name:BILL OF LANDING DRAFT COMMERCIAL INVOICE & ISO CERTIFICATE PO-RTM54379326.PDF.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:954'880 bytes
First seen:2020-10-08 17:48:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:q5KzuB2eQ4qo+pRM4qJDhTN2I0xPkVQKQ1lp9757fsawlzQud+1/oFs/:Kta4qoyKDhTUIG8VQjfppea6kuIW
Threatray 258 similar samples on MalwareBazaar
TLSH 58152305B6AC5763DD3D4BF9D2FA85094BB4903332A3D3DD4DD52AE306BBB104682A93
Reporter abuse_ch
Tags:exe MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: dhl.com
Sending IP: 45.11.19.149
From: "Amit Matalia" <amatalia@dhl.com>
Reply-To: backoficemarnavalarcelomital.co@bk.ru
Subject: FW: Dhl Shiping Doc 2020-10- (2) - Page 1
Attachment: BILL OF LANDING DRAFT COMMERCIAL INVOICE ISO CERTIFICATE PO-RTM54379326.PDF.r15 (contains "BILL OF LANDING DRAFT COMMERCIAL INVOICE & ISO CERTIFICATE PO-RTM54379326.PDF.exe")

MassLogger SMTP exfil server:
mail.zarkom.rs:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
122
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/69331/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
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
Setting a global event handler for the keyboard
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/485892
Signature
Antivirus / Scanner detection for submitted sample
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Suspicious Double Extension
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 an obfuscated file name to hide its real file extension (double extension)
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8c3ea92bf0620d3126691eb0d463418170b88034e40dab26e8049ea5ceefd1f1/
Threat name:
ByteCode-MSIL.Infostealer.Stelega
Create hunting rule
Status:
Malicious
First seen:
2020-10-08 17:04:52 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rq7ksk7qmigtcjtjd2yniy2bqfylrabu4qg2wjxiaspkltxp2hyq._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
0393a3472d5f00efa4ab91bc086a1908741e10b84925190ff00cb948391a28a8
MassLogger
1535da1a6d1565e52d0ee483302229d387ab7e33d9c9f07f745c6154c7de61e7
MassLogger
2e6b47bbdb9f281c1432dc63d92d67ca891adf87e20edfa456789c8724a4b7b1
MassLogger
3662a3b002337c0da8ad94925e3c183f0a2d35b0932f9d40b89643335f10564d
MassLogger
4d52797ef29c39adff40c2e0e86ed50ba242028a82af1041d8dff12820bf2a5f
MassLogger
6d9aaf59f30c370edf5921da5c9085d00c826c01af55e8dde046b08b2573d8f2
MassLogger
bc0af8fda43937d6a0d717e5be51d3f5a51a67077bc8ca85f031fa5bc08d165a
MassLogger
dd5b3d947daecc91aa36e124a5bdcb1cb6b10fdb2d905a9a1e067bd6bdb4065b
MassLogger
f5d3f20a5e7fc84496267536833b84b4dce1c5cc168014215f396490c1430857
MassLogger
f784d412a56ccd414525c22e6b2e7c9482040e89be20fdb1f2e4db0016812ea7
MassLogger
+ 248 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
spyware stealer family:masslogger
Link:
https://tria.ge/reports/201008-6qxkkwpya2/
Behaviour
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:
f038f6fae82e9f9b83bf2ac354616eb5496502a07e287c8a860483008506e9c1
MD5 hash:
81523c669a11d0201ab9d2af96095e06
SHA1 hash:
358ec0b93a72af1be4066d94dc48e586a17dbc5d
Link:
https://www.unpac.me/results/c6349250-cb02-416b-a3ac-da78070e1b25/
SH256 hash:
607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b
MD5 hash:
a90baadadf904455325f7bc787185c7b
SHA1 hash:
7d833bb819d638008c98be469b05db2feaf201cd
Link:
https://www.unpac.me/results/c6349250-cb02-416b-a3ac-da78070e1b25/
SH256 hash:
94666fbd8865756ef0328f564f2de73515465a11883af85e653962c99b2e6947
MD5 hash:
9ec858857e5c4a267bb34da276524c9d
SHA1 hash:
e4da83101eab35be3447bb025138de461d373651
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/c6349250-cb02-416b-a3ac-da78070e1b25/
Parent samples :
3662a3b002337c0da8ad94925e3c183f0a2d35b0932f9d40b89643335f10564d
8c3ea92bf0620d3126691eb0d463418170b88034e40dab26e8049ea5ceefd1f1
SH256 hash:
8c3ea92bf0620d3126691eb0d463418170b88034e40dab26e8049ea5ceefd1f1
MD5 hash:
cd50dc012cf01749b236f46d8319151a
SHA1 hash:
ce401b7451d8129ff11809613a271ef0b31acafc
Link:
https://www.unpac.me/results/c6349250-cb02-416b-a3ac-da78070e1b25/
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/8c3ea92bf0620d3126691eb0d463418170b88034e40dab26e8049ea5ceefd1f1

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 ddcf5bf2e778c3de80e61f8729606592e37dbe8e90b8b3dc22d61d40f3b12286

MassLogger

Executable exe 8c3ea92bf0620d3126691eb0d463418170b88034e40dab26e8049ea5ceefd1f1

(this sample)

  
Dropped by
MD5 d0dae4e4d450260e5707379593218fe3
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/69331/
  
Dropped by
SHA256 ddcf5bf2e778c3de80e61f8729606592e37dbe8e90b8b3dc22d61d40f3b12286

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