MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 438b22a51b7bf77785d93d3ace1951b5b492e0b12e145178a24c5b80db9fb573. 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 2 File information Comments

SHA256 hash:	438b22a51b7bf77785d93d3ace1951b5b492e0b12e145178a24c5b80db9fb573
SHA3-384 hash:	2547ba4ddb0c0964f52faf142aff79c2be8cade7a4398ae480e8033fe77250d483b411aead273a3eb44e3a97aa8144ee
SHA1 hash:	74fb9c3ce5b0aa195d4558eb72e4e0060f4d0734
MD5 hash:	7dfd9ea59e7c8e9a226f177008c9e3b0
humanhash:	pip-item-indigo-quiet
File name:	W0ozsUH6b6QIpA4.exe
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	1'822'720 bytes
First seen:	2020-07-17 05:30:05 UTC
Last seen:	2020-07-17 06:02:19 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	24576:IS073iv/owcOy32ickmWoERuxiI/iPE+zfqwJLoeIywJTLt0xbMtcu7pipSRZlf3:OwcOy32nNyu/6iwJoD5GGOv0RsAd
Threatray	3'850 similar samples on MalwareBazaar
TLSH	138501D87860B99EC81FCD754958CD3095202C62F6FBD203A3C36E9FB53DA86CA551E2
Reporter	JAMESWT_WT
Tags:	MassLogger

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Gathering data

Detection(s):

SecuriteInfo.com.CAP_HookExKeylogger.11339.6601.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Launching a process

Creating a process with a hidden window

Result

Threat name:

MassLogger RAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/388946

Signature

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Found malware configuration

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 MassLogger RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/438b22a51b7bf77785d93d3ace1951b5b492e0b12e145178a24c5b80db9fb573/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-07-16 22:05:56 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

24 of 29 (82.76%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=iofsfji3pp3xpbozhu5m4gkrww2jfyfrfykfc6fcjrnybw47wvzq._file

Verdict:

malicious

MassLogger

420541ff7ab7f97d2110f9c2f2488087c0d2f9e577fa5e55c73eebf4f5416bbc

MassLogger

8b1417b74ac31f2e60a6a9f5ed507caf06026191354ce0e4b6bf0816fd3f512d

MassLogger

9fc5b3395c0fea9aec9e7c6bfce346acd3271500c1cc085859c4270f91e30a94

MassLogger

abb96fbc3e4b80337204e33d19134498c7eca75ba47390fe4df7939383515e6d

MassLogger

bfc3d6d12ca4a76297cf920edbdfe491c6be14e42e6b9c0722ff5efb5bfb6377

MassLogger

dd0b44aeb504ee47ac61b86d092f14b7f3955b76c4b227458237acc4c9f55663

MassLogger

e91593299dba4d7f9362c8d64e701413af0384f0f7ecca356ab138497f3a8e4d

MassLogger

f56d7d52023e3a3dd1f6b2c2dc31b11a509d6175ca1385459bcc1cf4a67c9c2f

MassLogger

fbb99e9576db212b02fd60fc214d3cd9faa9f2f019103ea8dc1aec8424bd4ba7

MassLogger

+ 3'840 additional samples on MalwareBazaar

Result

Malware family:

masslogger

Score:

10/10

Tags:

ransomware spyware stealer family:masslogger

Link:

https://tria.ge/reports/200717-kpe1h5vz32/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: AddClipboardFormatListener

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetThreadContext

Looks up external IP address via web service

Reads user/profile data of web browsers

MassLogger log file

MassLogger

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Unknown

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/438b22a51b7bf77785d93d3ace1951b5b492e0b12e145178a24c5b80db9fb573

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:	CAP_HookExKeylogger Create hunting rule
Author:	Brian C. Bell -- @biebsmalwareguy
Reference:	https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar