stealerium | ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335

General

Target

ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe
Size

1.6MB
MD5

2b295d7ed694fd5f8d154e2809dde5c7
SHA1

8fe4226bfd0795bc92ad62a518e1c5313a1063c2
SHA256

ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335
SHA512

f1cc93b2bd0d56c604dd601dc34a5152382b553e847d08fedc48f08ad1badfdd7dace981e2e1837db2bda22f3b3f1be2269047ddd40a591b29a2fe1b876c8d43
SSDEEP

49152:skTq24GjdGSiqkqXfd+/9AqYanieKds1:s1EjdGSiqkqXf0FLYW

Score

10^/10

stealerium stealer

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1246735852525326437/GcTg3JPGVTvvvYi6IMfM_bflcLd6mmUk7zrqDc3jqVTKiN4-XEedjVbl6jUHpWD6Vdzi

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

2468 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1272 taskkill.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe

pid process

2168 ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe

flow	ioc
4	discord.com
5	discord.com

pid	process
2468	timeout.exe

pid	process
1272	taskkill.exe

pid	process
2168	ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	2168	ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe
Token: SeDebugPrivilege	1272	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.execmd.exe

description	pid	process	target process
PID 2168 wrote to memory of 2292	2168	ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe	cmd.exe
PID 2168 wrote to memory of 2292	2168	ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe	cmd.exe
PID 2168 wrote to memory of 2292	2168	ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe	cmd.exe
PID 2168 wrote to memory of 2292	2168	ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe	cmd.exe
PID 2292 wrote to memory of 828	2292	cmd.exe	chcp.com
PID 2292 wrote to memory of 828	2292	cmd.exe	chcp.com
PID 2292 wrote to memory of 828	2292	cmd.exe	chcp.com
PID 2292 wrote to memory of 828	2292	cmd.exe	chcp.com
PID 2292 wrote to memory of 1272	2292	cmd.exe	taskkill.exe
PID 2292 wrote to memory of 1272	2292	cmd.exe	taskkill.exe
PID 2292 wrote to memory of 1272	2292	cmd.exe	taskkill.exe
PID 2292 wrote to memory of 1272	2292	cmd.exe	taskkill.exe
PID 2292 wrote to memory of 2468	2292	cmd.exe	timeout.exe
PID 2292 wrote to memory of 2468	2292	cmd.exe	timeout.exe
PID 2292 wrote to memory of 2468	2292	cmd.exe	timeout.exe
PID 2292 wrote to memory of 2468	2292	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe
"C:\Users\Admin\AppData\Local\Temp\ccf5a47144d4d2e99d2cb7fa4d620c18422e1a85da05ed46f2f574cd671cc335.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2168

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp4590.tmp.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:2292

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:828

C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 2168
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1272

C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
3⤵
- Delays execution with timeout.exe
PID:2468

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
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar44B5.tmp
Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4590.tmp.bat
Filesize
57B

MD5
fbf155fd8388da190ff16e68cb569ea1

SHA1
8d2add8130d9130d300b42d3e84e5c53a6d180f3

SHA256
412429d108b9e9237cfd68fa1194a3e19e0c9eb4178c9ee437bc58c0f8ae9b07

SHA512
76fbd869e8a0684cc043375ff5c97445f033027311f0e97fb6a5908d4cb66899e04a47fc85123689428c0716d7723da397bae4a9873a5dfc5cadcf12ad6c6b25

Download Submit
memory/2168-0-0x000000007420E000-0x000000007420F000-memory.dmp

Filesize
4KB

Download
memory/2168-1-0x00000000009B0000-0x0000000000B42000-memory.dmp

Filesize
1.6MB

Download
memory/2168-2-0x0000000074200000-0x00000000748EE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-6-0x00000000052A0000-0x0000000005332000-memory.dmp

Filesize
584KB

Download
memory/2168-7-0x00000000008F0000-0x0000000000916000-memory.dmp

Filesize
152KB

Download
memory/2168-8-0x00000000004D0000-0x00000000004D8000-memory.dmp

Filesize
32KB

Download
memory/2168-50-0x0000000074200000-0x00000000748EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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