MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d52797ef29c39adff40c2e0e86ed50ba242028a82af1041d8dff12820bf2a5f. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d52797ef29c39adff40c2e0e86ed50ba242028a82af1041d8dff12820bf2a5f
SHA3-384 hash: bca674081eb9f37c51c8f34ae76aacdfe272343d299b0b59492db7a3f5e2841dbd1bb6c570cd05a89b135a85a2e3df26
SHA1 hash: 16ace732ce81c651f88c3e37c96f0d44696ddf60
MD5 hash: 9e7efaf10b1216426d905034afee278b
humanhash: twelve-sierra-berlin-don
File name:MAERSK 12532019.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:972'800 bytes
First seen:2020-10-08 05:40:36 UTC
Last seen:2020-10-08 07:17:20 UTC
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:O49QK+J7e/WmawcMY8U0sNNDoL/SUThbIcz:7eVJ7iWmaV8+6q
Threatray 267 similar samples on MalwareBazaar
TLSH 852523027BBC5BA3EA2C47F9C666141193F7A0B7D173E3894ED871E25BA3B004192D5B
Reporter abuse_ch
Tags:exe Maersk MassLogger


Avatar
abuse_ch
Malspam distributing MassLogger:

HELO: bashan.com.tr
Sending IP: 103.114.106.7
From: NURSAH-BASHAN <nursah@bashan.com.tr>
Subject: RE: new contract - Bushan 1000MT Contract No : 1253/2020
Attachment: MAERSK 12532020.zip (contains "MAERSK 12532019.exe")

Intelligence

File Origin
# of uploads :
3
# of downloads :
124
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/69083/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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:
96 / 100
Link:
https://www.joesandbox.com/analysis/484963
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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)
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4d52797ef29c39adff40c2e0e86ed50ba242028a82af1041d8dff12820bf2a5f/
Threat name:
ByteCode-MSIL.Spyware.Masslogger
Create hunting rule
Status:
Suspicious
First seen:
2020-10-08 05:42:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
37 of 48 (77.08%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jvjhs7xstq42372aylqoq3wvboreeaukqkxraqoy37ysqif7fjpq._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
0ef2593d361644ba25c85b621e05c425fc5c42c272cc5dca619ce29ee19c7fc1
MassLogger
6d9aaf59f30c370edf5921da5c9085d00c826c01af55e8dde046b08b2573d8f2
MassLogger
88d7ccc6752536d44a533c184e24437ec1181dc841ed7c1fa6bcc408add5340e
MassLogger
8bd39d451b99909467edb3df6618762071da426ee580108882e300cf8b21b0cb
MassLogger
9b19c9209b2ae45df8c1d9d9f9b4e00f3d6c9edfb4ff64578d06a5a3f0a099e2
MassLogger
9f999d5b44ff7bd243bc33f8a89f504c95d6b21eef26b7b80a49715471ff43d3
MassLogger
9fb2e0b5f09a7d3d66195fbaa6e7055cba4331ca2563305fc32104c82a978aa9
MassLogger
c0c4c97332bfb8b5254c089e82c05d0a7d171747b72f991f7e3bdb2ed74856d0
MassLogger
ce073fce9de335c288fe205d5bf7fbdd9fd3ecc718821116dbad098f176a69de
MassLogger
d7b0da0e8ccc1474692b0d96320de2254fa2b033bf3c00a9d10dad95aed383ad
MassLogger
+ 257 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware
Link:
https://tria.ge/reports/201008-cxzc16y65x/
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
Unpacked files
SH256 hash:
4d52797ef29c39adff40c2e0e86ed50ba242028a82af1041d8dff12820bf2a5f
MD5 hash:
9e7efaf10b1216426d905034afee278b
SHA1 hash:
16ace732ce81c651f88c3e37c96f0d44696ddf60
Link:
https://www.unpac.me/results/e04a1fd7-12bf-4d1d-bebc-37af8481477a/
SH256 hash:
1868816e7338e2e970ccdec72a146010349f23fd89737be375fe2887d7b111ad
MD5 hash:
c34b34061bcd79312f60ee71c0d182b2
SHA1 hash:
460c7e7621bef54b533c79fa64dacef3a102268d
Link:
https://www.unpac.me/results/e04a1fd7-12bf-4d1d-bebc-37af8481477a/
SH256 hash:
4086f1cea6921f368a92e1adbf42d787a59f0b3971e4124b947191546653ca12
MD5 hash:
6590320ff5c4f7b677eae84cc3840a09
SHA1 hash:
5e3af049b2fc1d3a5026a27d189c13c90ec71c5f
Detections:
win_masslogger_w0
Create hunting rule
Link:
https://www.unpac.me/results/e04a1fd7-12bf-4d1d-bebc-37af8481477a/
Parent samples :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 hash:
607f04646c9f16f7c23fa69d4b8f660fc7c44d40e4f73a0c70a2b315debdaa8b
MD5 hash:
a90baadadf904455325f7bc787185c7b
SHA1 hash:
7d833bb819d638008c98be469b05db2feaf201cd
Link:
https://www.unpac.me/results/e04a1fd7-12bf-4d1d-bebc-37af8481477a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Eldorado
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/4d52797ef29c39adff40c2e0e86ed50ba242028a82af1041d8dff12820bf2a5f

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: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 78234c1c306920c5cd4a7f936e5d7eb92d6d57fed182e3072122d119225a52eb

MassLogger

Executable exe 4d52797ef29c39adff40c2e0e86ed50ba242028a82af1041d8dff12820bf2a5f

(this sample)

  
Dropped by
MD5 4d5340ec2ab5db4bccd6d9bd7f52c591
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/69083/
  
Dropped by
SHA256 78234c1c306920c5cd4a7f936e5d7eb92d6d57fed182e3072122d119225a52eb

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