stealerium | ffa7f0b955e42bdcc07730ba6468a6605cd4614e9a1f2a0e8ff5c23b00a2d0ae

General

Target

5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe
Size

1.6MB
MD5

5e35f5434e9cdfd4a827bbe241fbf520
SHA1

402ae470d4bcbbcb36dd62ec0468477c35c400b3
SHA256

ffa7f0b955e42bdcc07730ba6468a6605cd4614e9a1f2a0e8ff5c23b00a2d0ae
SHA512

b59d1645a31c8d94ee833fe5a1e540e68c0757912bfdda65038632cecb993ace03ef400e2abec3410b00000beb1cd57f24f75107b0db39ffa96922396ebd54f6
SSDEEP

49152:7kTq24GjdGSiqkqXfd+/9AqYanieKdsI:71EjdGSiqkqXf0FLYW

Score

10^/10

stealerium stealer

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1236766417727262752/FZOV11M1fjoLR4WnczxZKrX-g_v-VDKt6qaLWx656lTKl91yaMPLXY68g9mDH1EKLOrD

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

4 discord.com
5 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

348 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2472 taskkill.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe

pid process

2100 5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 2100 5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe
Token: SeDebugPrivilege 2472 taskkill.exe

flow	ioc
4	discord.com
5	discord.com

pid	process
348	timeout.exe

pid	process
2472	taskkill.exe

pid	process
2100	5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe

description	pid	process
Token: SeDebugPrivilege	2100	5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe
Token: SeDebugPrivilege	2472	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.execmd.exe

description	pid	process	target process
PID 2100 wrote to memory of 1940	2100	5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe	cmd.exe
PID 2100 wrote to memory of 1940	2100	5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe	cmd.exe
PID 2100 wrote to memory of 1940	2100	5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe	cmd.exe
PID 2100 wrote to memory of 1940	2100	5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe	cmd.exe
PID 1940 wrote to memory of 2660	1940	cmd.exe	chcp.com
PID 1940 wrote to memory of 2660	1940	cmd.exe	chcp.com
PID 1940 wrote to memory of 2660	1940	cmd.exe	chcp.com
PID 1940 wrote to memory of 2660	1940	cmd.exe	chcp.com
PID 1940 wrote to memory of 2472	1940	cmd.exe	taskkill.exe
PID 1940 wrote to memory of 2472	1940	cmd.exe	taskkill.exe
PID 1940 wrote to memory of 2472	1940	cmd.exe	taskkill.exe
PID 1940 wrote to memory of 2472	1940	cmd.exe	taskkill.exe
PID 1940 wrote to memory of 348	1940	cmd.exe	timeout.exe
PID 1940 wrote to memory of 348	1940	cmd.exe	timeout.exe
PID 1940 wrote to memory of 348	1940	cmd.exe	timeout.exe
PID 1940 wrote to memory of 348	1940	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\5e35f5434e9cdfd4a827bbe241fbf520_NEIKI.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2100

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp2FCF.tmp.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1940

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:2660

C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 2100
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2472

C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
3⤵
- Delays execution with timeout.exe
PID:348

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar2F51.tmp
Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2FCF.tmp.bat
Filesize
57B

MD5
90b15efbbb7b73f426a0a592229f7a14

SHA1
f8c026eb23491dfdfafef83264ad0499376224cd

SHA256
ea870e0dbecd4485a0d3d5701c11aafd55c41b5cdd9852d3433d1df0bab9362f

SHA512
aefc59290201d99abc1d0ae88da201f23751e5b1f77243440c75a9e483b9327ede1a6142f27ede498b4e8b17bbc5f08ea90719ef21c503fbbf545b80ddd0ab61

Download Submit
memory/2100-0-0x0000000074A2E000-0x0000000074A2F000-memory.dmp

Filesize
4KB

Download
memory/2100-1-0x00000000008D0000-0x0000000000A62000-memory.dmp

Filesize
1.6MB

Download
memory/2100-2-0x0000000074A20000-0x000000007510E000-memory.dmp

Filesize
6.9MB

Download
memory/2100-5-0x0000000004AA0000-0x0000000004B32000-memory.dmp

Filesize
584KB

Download
memory/2100-6-0x0000000000570000-0x0000000000596000-memory.dmp

Filesize
152KB

Download
memory/2100-7-0x0000000000490000-0x0000000000498000-memory.dmp

Filesize
32KB

Download
memory/2100-49-0x0000000074A20000-0x000000007510E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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