marsstealer | 5e1aba37fd2ab19677b7a59505924bf18d8809037cbbf50b7b22c4a74b421396

General

Target

deeplsetup64.exe
Size

14.5MB
MD5

1dba954b14bc941c13917462e368c560
SHA1

ab9eaf52b10a9d270ba0776087456f55ca10c447
SHA256

5e1aba37fd2ab19677b7a59505924bf18d8809037cbbf50b7b22c4a74b421396
SHA512

e952f7d9fdfc63233ed2592251c68d6bb631b80d586a8349731f858e8c4dca266a91c4db2a042df2accdab30044d3f4b5a3517d0ec1f130080609007ef268167
SSDEEP

12288:Mi2f75WQGH5Tua5O7g8+V9rI0djHf1lwNfUNq71j8/37vXu:V8YZO2j3I0dP7P

Score

10^/10

marsstealer default spyware stealer

Malware Config

Extracted

Family

marsstealer

Botnet

Default

Signatures

Mars Stealer
An infostealer written in C++ based on other infostealers.
stealer marsstealer
Executes dropped EXE 1 IoCs

Processes:

9WVJBOK8.exe

pid process

2832 9WVJBOK8.exe
Loads dropped DLL 8 IoCs

Processes:

deeplsetup64.exe9WVJBOK8.exeWerFault.exe

pid process

588 deeplsetup64.exe
588 deeplsetup64.exe
2832 9WVJBOK8.exe
2832 9WVJBOK8.exe
2832 9WVJBOK8.exe
2252 WerFault.exe
2252 WerFault.exe
2252 WerFault.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

2252 2832 WerFault.exe 9WVJBOK8.exe

pid	process
2832	9WVJBOK8.exe

pid	process
588	deeplsetup64.exe
588	deeplsetup64.exe
2832	9WVJBOK8.exe
2832	9WVJBOK8.exe
2832	9WVJBOK8.exe
2252	WerFault.exe
2252	WerFault.exe
2252	WerFault.exe

pid	pid_target	process	target process
2252	2832	WerFault.exe	9WVJBOK8.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

Processes:

9WVJBOK8.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	9WVJBOK8.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	9WVJBOK8.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

deeplsetup64.exe9WVJBOK8.exe

description	pid	process	target process
PID 588 wrote to memory of 2832	588	deeplsetup64.exe	9WVJBOK8.exe
PID 588 wrote to memory of 2832	588	deeplsetup64.exe	9WVJBOK8.exe
PID 588 wrote to memory of 2832	588	deeplsetup64.exe	9WVJBOK8.exe
PID 588 wrote to memory of 2832	588	deeplsetup64.exe	9WVJBOK8.exe
PID 588 wrote to memory of 2832	588	deeplsetup64.exe	9WVJBOK8.exe
PID 588 wrote to memory of 2832	588	deeplsetup64.exe	9WVJBOK8.exe
PID 588 wrote to memory of 2832	588	deeplsetup64.exe	9WVJBOK8.exe
PID 2832 wrote to memory of 2252	2832	9WVJBOK8.exe	WerFault.exe
PID 2832 wrote to memory of 2252	2832	9WVJBOK8.exe	WerFault.exe
PID 2832 wrote to memory of 2252	2832	9WVJBOK8.exe	WerFault.exe
PID 2832 wrote to memory of 2252	2832	9WVJBOK8.exe	WerFault.exe
PID 2832 wrote to memory of 2252	2832	9WVJBOK8.exe	WerFault.exe
PID 2832 wrote to memory of 2252	2832	9WVJBOK8.exe	WerFault.exe
PID 2832 wrote to memory of 2252	2832	9WVJBOK8.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\deeplsetup64.exe
"C:\Users\Admin\AppData\Local\Temp\deeplsetup64.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:588
- C:\ProgramData\9WVJBOK8.exe
  "C:\ProgramData\9WVJBOK8.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Modifies system certificate store
  - Suspicious use of WriteProcessMemory
  PID:2832
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2832 -s 724
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\9WVJBOK8.exe

Filesize
159KB

MD5
1a9fa43be1579005d913413d18f047b7

SHA1
a92faa80014713989cd2c527d0bc7dd0991d90a4

SHA256
30a9559298fd9d27a75bd6b5a73b762ac997992f677a0081d7fb87b74c00eff1

SHA512
e52d2f06d9a424e0ded2943e43d07e8ac40ee85f8cb10c90d88abf7482046f38c2d8580055cf211094f1274c930061c889480ffade363cf1b6eee57def259dbd

Download Submit
memory/588-0-0x0000000000830000-0x00000000008CC000-memory.dmp

Filesize
624KB

Download
memory/588-10-0x0000000002350000-0x000000000238D000-memory.dmp

Filesize
244KB

Download
memory/588-15-0x0000000002350000-0x000000000238D000-memory.dmp

Filesize
244KB

Download
memory/2832-16-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2832-17-0x0000000000230000-0x000000000026D000-memory.dmp

Filesize
244KB

Download
memory/2832-18-0x0000000000230000-0x000000000026D000-memory.dmp

Filesize
244KB

Download

Analysis

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