marsstealer | d269a5c94272ec07cea72bcf2fb277671661bd79f485067c8ba20d91435979e2

Analysis

max time kernel
146s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27-12-2023 02:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

9d15283240ff79899aeb0f2866c51b75d953e5c04a8069397734a3cb6aef87af.exe
Size

5.7MB
MD5

efe42e097392ba07bdbc1b30ed12f46f
SHA1

6e67c0ce64661b8f12c453d182fadcf9b81225b8
SHA256

9d15283240ff79899aeb0f2866c51b75d953e5c04a8069397734a3cb6aef87af
SHA512

87147c5b0a5016d5a6f36e980cf294880a78ca3b3491ca1e90bd5664f3d6405da4259ae486544f7b355cf6e29eeb80273336b9f2fbb5928730eda3584b8a1005
SSDEEP

12288:MPZV/cS4H8+Gc8DWKwJa8JdrBoyvCRH96m2iii2Tc:MRV2iWih

Score

10^/10

marsstealer default spyware stealer

Malware Config

Extracted

Family

marsstealer

Botnet

Default

moscow-post.com/log/loger.php

Signatures

Mars Stealer
An infostealer written in C++ based on other infostealers.
stealer marsstealer

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

9d15283240ff79899aeb0f2866c51b75d953e5c04a8069397734a3cb6aef87af.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	9d15283240ff79899aeb0f2866c51b75d953e5c04a8069397734a3cb6aef87af.exe

Executes dropped EXE 1 IoCs

Processes:

8MGTMMI7.exe

pid process

2116 8MGTMMI7.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1528 2116 WerFault.exe 8MGTMMI7.exe

pid	process
2116	8MGTMMI7.exe

pid	pid_target	process	target process
1528	2116	WerFault.exe	8MGTMMI7.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

9d15283240ff79899aeb0f2866c51b75d953e5c04a8069397734a3cb6aef87af.exe

description	pid	process	target process
PID 396 wrote to memory of 2116	396	9d15283240ff79899aeb0f2866c51b75d953e5c04a8069397734a3cb6aef87af.exe	8MGTMMI7.exe
PID 396 wrote to memory of 2116	396	9d15283240ff79899aeb0f2866c51b75d953e5c04a8069397734a3cb6aef87af.exe	8MGTMMI7.exe
PID 396 wrote to memory of 2116	396	9d15283240ff79899aeb0f2866c51b75d953e5c04a8069397734a3cb6aef87af.exe	8MGTMMI7.exe

C:\Users\Admin\AppData\Local\Temp\9d15283240ff79899aeb0f2866c51b75d953e5c04a8069397734a3cb6aef87af.exe
"C:\Users\Admin\AppData\Local\Temp\9d15283240ff79899aeb0f2866c51b75d953e5c04a8069397734a3cb6aef87af.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:396

C:\Users\Admin\AppData\Roaming\Mozilla\8MGTMMI7.exe
"C:\Users\Admin\AppData\Roaming\Mozilla\8MGTMMI7.exe"
2⤵
- Executes dropped EXE
PID:2116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 1404
3⤵
- Program crash
PID:1528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 2116 -ip 2116
1⤵
PID:4604

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Mozilla\8MGTMMI7.exe
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/396-1-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/396-0-0x0000000000030000-0x00000000000A4000-memory.dmp

Filesize
464KB

Download
memory/396-2-0x0000000004A30000-0x0000000004A40000-memory.dmp

Filesize
64KB

Download
memory/396-13-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/2116-12-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2116-15-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download