stealc | 225cbc74f957f8831349771de0a88e15bc458090166276d08bad6d304fb7c257

Analysis

max time kernel
110s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
17-02-2024 20:01

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General

Target

38D829E2C9CE1218E43B053FF926AA9B.exe
Size

208KB
MD5

38d829e2c9ce1218e43b053ff926aa9b
SHA1

c5636b967605ab837fa8d4ae6e63c475a0032dea
SHA256

225cbc74f957f8831349771de0a88e15bc458090166276d08bad6d304fb7c257
SHA512

8da851fad5e9d9ac65f684fc565bf95186aa7e101effe425d0d9b6553c4d58403f2b3c126de24c9bfc7523d5b6f949f90163ae215891232aab172c56220ce1bd
SSDEEP

6144:JQagWQptc1lhMIqpwU4ziFaQWleIHmulE1vC1VVIwzR:LQpAEhqWvQVVH

Score

10^/10

stealc discovery spyware stealer

Malware Config

Extracted

Family

stealc

http://193.163.7.160

Attributes

url_path
/f95721327cee196f.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:

38D829E2C9CE1218E43B053FF926AA9B.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	38D829E2C9CE1218E43B053FF926AA9B.exe

Loads dropped DLL 2 IoCs

Processes:

38D829E2C9CE1218E43B053FF926AA9B.exe

pid process

728 38D829E2C9CE1218E43B053FF926AA9B.exe
728 38D829E2C9CE1218E43B053FF926AA9B.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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
728	38D829E2C9CE1218E43B053FF926AA9B.exe
728	38D829E2C9CE1218E43B053FF926AA9B.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:

38D829E2C9CE1218E43B053FF926AA9B.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	38D829E2C9CE1218E43B053FF926AA9B.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	38D829E2C9CE1218E43B053FF926AA9B.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4596 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

38D829E2C9CE1218E43B053FF926AA9B.exe

pid process

728 38D829E2C9CE1218E43B053FF926AA9B.exe
728 38D829E2C9CE1218E43B053FF926AA9B.exe

pid	process
4596	timeout.exe

pid	process
728	38D829E2C9CE1218E43B053FF926AA9B.exe
728	38D829E2C9CE1218E43B053FF926AA9B.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

38D829E2C9CE1218E43B053FF926AA9B.execmd.exe

description	pid	process	target process
PID 728 wrote to memory of 4520	728	38D829E2C9CE1218E43B053FF926AA9B.exe	cmd.exe
PID 728 wrote to memory of 4520	728	38D829E2C9CE1218E43B053FF926AA9B.exe	cmd.exe
PID 728 wrote to memory of 4520	728	38D829E2C9CE1218E43B053FF926AA9B.exe	cmd.exe
PID 4520 wrote to memory of 4596	4520	cmd.exe	timeout.exe
PID 4520 wrote to memory of 4596	4520	cmd.exe	timeout.exe
PID 4520 wrote to memory of 4596	4520	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\38D829E2C9CE1218E43B053FF926AA9B.exe
"C:\Users\Admin\AppData\Local\Temp\38D829E2C9CE1218E43B053FF926AA9B.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:728

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\38D829E2C9CE1218E43B053FF926AA9B.exe" & del "C:\ProgramData\*.dll"" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4520

C:\Windows\SysWOW64\timeout.exe
timeout /t 5
3⤵
- Delays execution with timeout.exe
PID:4596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

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/728-0-0x0000000000C30000-0x0000000000E78000-memory.dmp

Filesize
2.3MB

Download
memory/728-1-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/728-69-0x0000000000C30000-0x0000000000E78000-memory.dmp

Filesize
2.3MB

Download