stealc | da68eede5f489072a8f0e34579d75ccefa0adefa2363cb6a2923c09f3f3d2b0b

General

Target

file.exe
Size

2.4MB
MD5

1b1117aacb221e675092b3328bdbe8bc
SHA1

8c68aeede370fe98c1d60066e039e7e0f70e0df8
SHA256

da68eede5f489072a8f0e34579d75ccefa0adefa2363cb6a2923c09f3f3d2b0b
SHA512

1ef104a90c7e9eba6f0a3d16ac2f8a31129374f055fee80296d5c8cee24c7ec6aaa949dc2093ba5a10a11a9a5f0fccd0b2eb3c1ed7b60b01ceb37a888255142a
SSDEEP

49152:gvCW+BOth3h/J2rd4Ni8cbFUbooHw/p7OiGvORwkfZQe19o:gazqx/8rdsi8UFUMoQwDeFw

Score

10^/10

stealc hate discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

hate

C2

http://85.28.47.30

Attributes

url_path
/920475a59bac849d.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

file.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation file.exe
Loads dropped DLL 2 IoCs

Processes:

file.exe

pid process

4320 file.exe
4320 file.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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
Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs

Processes:

file.exe

pid process

4320 file.exe
4320 file.exe
4320 file.exe
4320 file.exe
4320 file.exe
4320 file.exe
4320 file.exe
4320 file.exe
4320 file.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	file.exe

pid	process
4320	file.exe
4320	file.exe

pid	process
4320	file.exe
4320	file.exe
4320	file.exe
4320	file.exe
4320	file.exe
4320	file.exe
4320	file.exe
4320	file.exe
4320	file.exe

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:

file.exe

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

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3664 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

file.exe

pid process

4320 file.exe
4320 file.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

file.exe

pid process

4320 file.exe

pid	process
3664	timeout.exe

pid	process
4320	file.exe
4320	file.exe

pid	process
4320	file.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.execmd.exe

description	pid	process	target process
PID 4320 wrote to memory of 1268	4320	file.exe	cmd.exe
PID 4320 wrote to memory of 1268	4320	file.exe	cmd.exe
PID 4320 wrote to memory of 1268	4320	file.exe	cmd.exe
PID 1268 wrote to memory of 3664	1268	cmd.exe	timeout.exe
PID 1268 wrote to memory of 3664	1268	cmd.exe	timeout.exe
PID 1268 wrote to memory of 3664	1268	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4320

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\file.exe" & del "C:\ProgramData\*.dll"" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1268

C:\Windows\SysWOW64\timeout.exe
timeout /t 5
3⤵
- Delays execution with timeout.exe
PID:3664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/4320-6-0x0000000000FC0000-0x0000000001BBA000-memory.dmp

Filesize
12.0MB

Download
memory/4320-3-0x0000000000FC0000-0x0000000001BBA000-memory.dmp

Filesize
12.0MB

Download
memory/4320-4-0x0000000000FC0000-0x0000000001BBA000-memory.dmp

Filesize
12.0MB

Download
memory/4320-5-0x000000007F3C0000-0x000000007F791000-memory.dmp

Filesize
3.8MB

Download
memory/4320-0-0x0000000000FC0000-0x0000000001BBA000-memory.dmp

Filesize
12.0MB

Download
memory/4320-7-0x0000000000FC0000-0x0000000001BBA000-memory.dmp

Filesize
12.0MB

Download
memory/4320-8-0x0000000000FC0000-0x0000000001BBA000-memory.dmp

Filesize
12.0MB

Download
memory/4320-9-0x0000000000FC0000-0x0000000001BBA000-memory.dmp

Filesize
12.0MB

Download
memory/4320-10-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4320-58-0x0000000000FC0000-0x0000000001BBA000-memory.dmp

Filesize
12.0MB

Download
memory/4320-2-0x0000000000FC0000-0x0000000001BBA000-memory.dmp

Filesize
12.0MB

Download
memory/4320-1-0x000000007F3C0000-0x000000007F791000-memory.dmp

Filesize
3.8MB

Download
memory/4320-83-0x0000000000FC0000-0x0000000001BBA000-memory.dmp

Filesize
12.0MB

Download

Analysis

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