stealerium | 0651c2d33fe45643e1e6c85297fd9a361dec41567daf035f00c8bfa81e12d122

Resubmissions

Analysis

max time kernel
135s
max time network
136s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
24-05-2024 22:26

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General

Target

build.exe
Size

1.6MB
MD5

0f00ec8acd08f26ef6fcb2ff7792119c
SHA1

aca89906ae8ed315f7bb5ee5764860a431d04589
SHA256

0651c2d33fe45643e1e6c85297fd9a361dec41567daf035f00c8bfa81e12d122
SHA512

652db906239ada46dc959085a7c79598bcf8830e1aac8fc52f64ca4d1e5c094ae864ea078e4cac816fc1f4aa71004afdc41230574f1bec8b1d89c97d1983777f
SSDEEP

24576:3ei2Q9NXw2/wPOjdGxY2rqkqjVnlqud+/2P+A+ZecdyFoBkkAnexMrdgLmG:3JTq24GjdGSiqkqXfd+/9AqYanieKd9

Score

10^/10

stealerium stealer

Malware Config

Signatures

Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer stealerium
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

1 discord.com
2 discord.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

212 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2176 taskkill.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

build.exe

pid process

4772 build.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

build.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 4772 build.exe
Token: SeDebugPrivilege 2176 taskkill.exe

flow	ioc
1	discord.com
2	discord.com

pid	process
212	timeout.exe

pid	process
2176	taskkill.exe

pid	process
4772	build.exe

description	pid	process
Token: SeDebugPrivilege	4772	build.exe
Token: SeDebugPrivilege	2176	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

cmd.exebuild.execmd.exe

description	pid	process	target process
PID 4880 wrote to memory of 4772	4880	cmd.exe	build.exe
PID 4880 wrote to memory of 4772	4880	cmd.exe	build.exe
PID 4880 wrote to memory of 4772	4880	cmd.exe	build.exe
PID 4772 wrote to memory of 2308	4772	build.exe	cmd.exe
PID 4772 wrote to memory of 2308	4772	build.exe	cmd.exe
PID 4772 wrote to memory of 2308	4772	build.exe	cmd.exe
PID 2308 wrote to memory of 3260	2308	cmd.exe	chcp.com
PID 2308 wrote to memory of 3260	2308	cmd.exe	chcp.com
PID 2308 wrote to memory of 3260	2308	cmd.exe	chcp.com
PID 2308 wrote to memory of 2176	2308	cmd.exe	taskkill.exe
PID 2308 wrote to memory of 2176	2308	cmd.exe	taskkill.exe
PID 2308 wrote to memory of 2176	2308	cmd.exe	taskkill.exe
PID 2308 wrote to memory of 212	2308	cmd.exe	timeout.exe
PID 2308 wrote to memory of 212	2308	cmd.exe	timeout.exe
PID 2308 wrote to memory of 212	2308	cmd.exe	timeout.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\build.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:4880

C:\Users\Admin\AppData\Local\Temp\build.exe
C:\Users\Admin\AppData\Local\Temp\build.exe
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4772

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp760B.tmp.bat
3⤵
- Suspicious use of WriteProcessMemory
PID:2308

C:\Windows\SysWOW64\chcp.com
chcp 65001
4⤵
PID:3260

C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 4772
4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2176

C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
4⤵
- Delays execution with timeout.exe
PID:212

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:796

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

T1102

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp760B.tmp.bat
Filesize
57B

MD5
f522e9bea46a0724a916c7203e526276

SHA1
c29cfbdb4d291191c52b6933ca2ca70b66066afe

SHA256
8a02f5165b6b302d4993a41b3177d9c81d9fbdf6650c266b789aed612afe67a9

SHA512
b498cdeafc6f382ef994a49e176a630073ad86d7a4b9eea8763eb6e6eaa58e638c253a6cb63732332355ae2101290fc42beb3dafdfffbdc0d42e748f92c09a15

Download Submit
memory/4772-0-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

Filesize
4KB

Download
memory/4772-1-0x0000000000BE0000-0x0000000000D72000-memory.dmp

Filesize
1.6MB

Download
memory/4772-2-0x0000000003130000-0x0000000003196000-memory.dmp

Filesize
408KB

Download
memory/4772-3-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download
memory/4772-6-0x0000000005B40000-0x0000000005BD2000-memory.dmp

Filesize
584KB

Download
memory/4772-7-0x0000000005770000-0x0000000005796000-memory.dmp

Filesize
152KB

Download
memory/4772-8-0x00000000057A0000-0x00000000057A8000-memory.dmp

Filesize
32KB

Download
memory/4772-13-0x0000000073F80000-0x000000007466E000-memory.dmp

Filesize
6.9MB

Download