stealc | ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828

General

Target

ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe
Size

217KB
MD5

5ae60f7a7cafcb69126a7baec93fea40
SHA1

3d0584765c6066994a9b5fe19efc845cb51748c0
SHA256

ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828
SHA512

419641b312fbe1e1ca98b56103e3d47b7c21386d7b9374ab71eeca6eac343631121b8906d50da4df937ae3479a75e68e324710c2c6ab007f8651e753e48207fa
SSDEEP

3072:ohyXgVgr6aRCRCxgrdPH2/6mDOk6vWvTXQAv1sPW5cVqt6Lt:WxV4CYOkccQOwVqMLt

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

C2

http://arthurmaes.top/410b5129171f10ea.php

Signatures

Detects Stealc stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/1012-180-0x0000000000400000-0x0000000000628000-memory.dmp	family_stealc
behavioral1/memory/1012-193-0x0000000000400000-0x0000000000628000-memory.dmp	family_stealc

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Loads dropped DLL 2 IoCs

Processes:

ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe

pid	process
1012	ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe
1012	ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.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

Processes:

ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1192 timeout.exe

pid	process
1192	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe

pid	process
1012	ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe
1012	ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.execmd.exe

description	pid	process	target process
PID 1012 wrote to memory of 4872	1012	ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe	cmd.exe
PID 1012 wrote to memory of 4872	1012	ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe	cmd.exe
PID 1012 wrote to memory of 4872	1012	ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe	cmd.exe
PID 4872 wrote to memory of 1192	4872	cmd.exe	timeout.exe
PID 4872 wrote to memory of 1192	4872	cmd.exe	timeout.exe
PID 4872 wrote to memory of 1192	4872	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe
"C:\Users\Admin\AppData\Local\Temp\ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1012

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\ed6eb7bb956e18f064d2f5d0580471bace87b4c5deb4d26e345b8ef77dc34828.exe" & del "C:\ProgramData\*.dll"" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4872

C:\Windows\SysWOW64\timeout.exe
timeout /t 5
3⤵
- Delays execution with timeout.exe
PID:1192

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\mozglue.dll
Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\mozglue.dll
Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll
Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/1012-122-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/1012-123-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1012-180-0x0000000000400000-0x0000000000628000-memory.dmp

Filesize
2.2MB

Download
memory/1012-193-0x0000000000400000-0x0000000000628000-memory.dmp

Filesize
2.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads