marsstealer | 7ffb1aa685c2c01dff9ccf00d7fcec0be8699e79a55837ad6d8d1997afe9f22a

Analysis

max time kernel
29s
max time network
31s
platform
windows10-1703_x64
resource
win10-20220812-en
submitted
19-08-2022 17:49

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General

Target

svshosts.exe
Size

159KB
MD5

0468aeb5cdadca0da63cb44b88ec4ca4
SHA1

90649e464438b5519683253bce862b576a61a67e
SHA256

7ffb1aa685c2c01dff9ccf00d7fcec0be8699e79a55837ad6d8d1997afe9f22a
SHA512

d6339860a625cef9d8702e6ad8e196d6d96574c61f2192b083a313da9ca6060c690de381ffe1fc2877dac89be6320b758aa792814a67c572d8990d200c5549be
SSDEEP

3072:UpxUyGSzNlhedcQlM9DxxyvRhFBnSrbHRXdZczYXhVcsd4fxEvLJSp8Bb8EG:CSSz3qAyvRh3nSrbH1wzijcUOxkH8EG

Score

10^/10

marsstealer default discovery spyware stealer

Malware Config

Extracted

Family

marsstealer

Botnet

Default

mars1877.duckdns.org/gate.php

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
1768	svshosts.exe
1768	svshosts.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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svshosts.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	svshosts.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3000	timeout.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 4612	1768	svshosts.exe	68
PID 1768 wrote to memory of 4612	1768	svshosts.exe	68
PID 1768 wrote to memory of 4612	1768	svshosts.exe	68
PID 4612 wrote to memory of 3000	4612	cmd.exe	70
PID 4612 wrote to memory of 3000	4612	cmd.exe	70
PID 4612 wrote to memory of 3000	4612	cmd.exe	70

C:\Users\Admin\AppData\Local\Temp\svshosts.exe
"C:\Users\Admin\AppData\Local\Temp\svshosts.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\svshosts.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4612
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 5
    3⤵
    - Delays execution with timeout.exe
    PID:3000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\ProgramData\mozglue.dll

Filesize
133KB

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
\ProgramData\nss3.dll

Filesize
1.2MB

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/1768-120-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-122-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-121-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-123-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-124-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-125-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-126-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-127-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-128-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-129-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1768-131-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-132-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-133-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-134-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-130-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-137-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-136-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-135-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-138-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-139-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-140-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-141-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-142-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-143-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-144-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-145-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-146-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-147-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-149-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-148-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-150-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-151-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-152-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-153-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-154-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-155-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-156-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-158-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-159-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-157-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-160-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-162-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-161-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-163-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-164-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-165-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-166-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-167-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-168-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-169-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-170-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-171-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-172-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-173-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-174-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-175-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-176-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-177-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-178-0x0000000077A30000-0x0000000077BBE000-memory.dmp

Filesize
1.6MB

Download
memory/1768-179-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1768-230-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download