marsstealer | 7c8a3fee6af3b2addadd83c7fa2a12fb47df73b9b54de07c4c56835edf74e344

Analysis

max time kernel
123s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18-04-2024 01:30

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General

Target

8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe
Size

3.4MB
MD5

82132dee9a07a607146d757091782517
SHA1

6b74a77a35f5e60d94541fdc49b63716d0224e46
SHA256

8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3
SHA512

4814c9e8a1c536c05abf72e0c83e58e2632a9b5a0248b295bb7752810634549d7191d152949bf7e433221b87c40858679c14cdaacb1f75b38ca4b97ff1a833b4
SSDEEP

12288:hFyN37FMCwa/5zCoehaSiNM5JWFnOVyVI:jqADNqPC

Score

10^/10

marsstealer default stealer

Malware Config

Extracted

Family

marsstealer

Botnet

Default

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:

8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe

Executes dropped EXE 1 IoCs

Processes:

3BWRID4E.exe

pid process

1208 3BWRID4E.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1208	3BWRID4E.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe

description	pid	process	target process
PID 5112 wrote to memory of 1208	5112	8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe	3BWRID4E.exe
PID 5112 wrote to memory of 1208	5112	8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe	3BWRID4E.exe
PID 5112 wrote to memory of 1208	5112	8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe	3BWRID4E.exe

C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe
"C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5112
- C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\3BWRID4E.exe
  "C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\3BWRID4E.exe"
  2⤵
  - Executes dropped EXE
  PID:1208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\3BWRID4E.exe

Filesize
159KB

MD5
e4cb1bcdc60f4f2fcdaa6a68c8493a5f

SHA1
bfd7d3a86c2c99c0954f9091efc406d11c98131b

SHA256
757398277a44e255c9fc26eb7ebb77aa4b3997a4894ac785e74bea591c053979

SHA512
86581c1886d555350241a7cdd30a726700f1d8d65a852a3cc4fde332aad3f33361dbb93e570f7ae724501ff46fd5c8447852ba4bb707a74993025e1cfabf6219

Download Submit
memory/1208-11-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/5112-0-0x0000000000530000-0x00000000005A6000-memory.dmp

Filesize
472KB

Download
memory/5112-1-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/5112-2-0x00000000054F0000-0x0000000005A94000-memory.dmp

Filesize
5.6MB

Download
memory/5112-12-0x0000000005EE0000-0x0000000005F72000-memory.dmp

Filesize
584KB

Download
memory/5112-14-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download