stealc | 41eaf132932134436e24b49cf634f2633d8e4ee61ab686ae475a1ebaf41e47c0

Analysis

max time kernel
104s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2025, 23:19

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General

Target

Tbfadf.exe
Size

1.2MB
MD5

1271c7d71b5eccab5d0a3d03f54df27e
SHA1

c82699c0a9e8532efd110aa962d256572e155cce
SHA256

41eaf132932134436e24b49cf634f2633d8e4ee61ab686ae475a1ebaf41e47c0
SHA512

0026fd56622088427256c9661dc9d45e0aecb5a5bf38ea96de6723335081c2c98151c00774b8330d1f63636e6f95b507d684dd835e59b36b749e2e09f7526b58
SSDEEP

24576:wzf4VUpERKJfMHEAAQWTGtbRyW3odC/gAeg9e4IWaSP:JNrAGtbRAnr4IW/P

Score

10^/10

stealc miauwonderlandhelp discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

miauwonderlandhelp

miauwonderland.help

Attributes

url_path
/95e2879446ffa8f1.php

rc4.plain

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Downloads MZ/PE file 1 IoCs

flow	pid	Process
29	1132	Tbfadf.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003
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 SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1132 set thread context of 4780	1132	Tbfadf.exe	95

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

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4780	Tbfadf.exe
4780	Tbfadf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1132	Tbfadf.exe
Token: SeDebugPrivilege	1132	Tbfadf.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 4780	1132	Tbfadf.exe	95
PID 1132 wrote to memory of 4780	1132	Tbfadf.exe	95
PID 1132 wrote to memory of 4780	1132	Tbfadf.exe	95
PID 1132 wrote to memory of 4780	1132	Tbfadf.exe	95
PID 1132 wrote to memory of 4780	1132	Tbfadf.exe	95
PID 1132 wrote to memory of 4780	1132	Tbfadf.exe	95
PID 1132 wrote to memory of 4780	1132	Tbfadf.exe	95
PID 1132 wrote to memory of 4780	1132	Tbfadf.exe	95
PID 1132 wrote to memory of 4780	1132	Tbfadf.exe	95
PID 4780 wrote to memory of 1264	4780	Tbfadf.exe	97
PID 4780 wrote to memory of 1264	4780	Tbfadf.exe	97
PID 4780 wrote to memory of 1264	4780	Tbfadf.exe	97

C:\Users\Admin\AppData\Local\Temp\Tbfadf.exe
"C:\Users\Admin\AppData\Local\Temp\Tbfadf.exe"
1⤵
- Downloads MZ/PE file
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Users\Admin\AppData\Local\Temp\Tbfadf.exe
  "C:\Users\Admin\AppData\Local\Temp\Tbfadf.exe"
  2⤵
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4780
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    3⤵
    PID:1264

C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe"
1⤵
PID:3832

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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

memory/1132-0-0x00007FFE44D53000-0x00007FFE44D55000-memory.dmp

Filesize
8KB

Download
memory/1132-1-0x0000022BAADC0000-0x0000022BAAEF8000-memory.dmp

Filesize
1.2MB

Download
memory/1132-2-0x0000022BACCD0000-0x0000022BACDB4000-memory.dmp

Filesize
912KB

Download
memory/1132-3-0x00007FFE44D50000-0x00007FFE45811000-memory.dmp

Filesize
10.8MB

Download
memory/1132-4-0x0000022BC5480000-0x0000022BC5550000-memory.dmp

Filesize
832KB

Download
memory/1132-5-0x0000022BC5650000-0x0000022BC5750000-memory.dmp

Filesize
1024KB

Download
memory/1132-59-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-63-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-69-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-67-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-65-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-61-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-57-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-55-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-53-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-51-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-49-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-45-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-39-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-37-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-35-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-33-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-31-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-29-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-27-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-25-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-23-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-17-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-15-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-13-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-12-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-9-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-47-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-43-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-41-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-7-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-21-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-6-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-19-0x0000022BC5650000-0x0000022BC5749000-memory.dmp

Filesize
996KB

Download
memory/1132-1342-0x00007FFE44D50000-0x00007FFE45811000-memory.dmp

Filesize
10.8MB

Download
memory/1132-1343-0x0000022BACAF0000-0x0000022BACB48000-memory.dmp

Filesize
352KB

Download
memory/1132-1345-0x0000022BC5590000-0x0000022BC55DC000-memory.dmp

Filesize
304KB

Download
memory/1132-1344-0x0000022BACB50000-0x0000022BACBA4000-memory.dmp

Filesize
336KB

Download
memory/1132-1346-0x00007FFE44D50000-0x00007FFE45811000-memory.dmp

Filesize
10.8MB

Download
memory/1132-1347-0x00007FFE44D50000-0x00007FFE45811000-memory.dmp

Filesize
10.8MB

Download
memory/1132-1348-0x00007FFE44D53000-0x00007FFE44D55000-memory.dmp

Filesize
8KB

Download
memory/1132-1349-0x00007FFE44D50000-0x00007FFE45811000-memory.dmp

Filesize
10.8MB

Download
memory/1132-1350-0x00007FFE44D50000-0x00007FFE45811000-memory.dmp

Filesize
10.8MB

Download
memory/1132-1351-0x00007FFE44D50000-0x00007FFE45811000-memory.dmp

Filesize
10.8MB

Download
memory/1132-1352-0x00007FFE44D50000-0x00007FFE45811000-memory.dmp

Filesize
10.8MB

Download
memory/1132-1354-0x0000022BC55E0000-0x0000022BC5634000-memory.dmp

Filesize
336KB

Download
memory/1132-1355-0x00007FFE44D50000-0x00007FFE45811000-memory.dmp

Filesize
10.8MB

Download
memory/1132-1360-0x00007FFE44D50000-0x00007FFE45811000-memory.dmp

Filesize
10.8MB

Download
memory/4780-1359-0x0000000140000000-0x00000001400CB000-memory.dmp

Filesize
812KB

Download
memory/4780-1390-0x0000000140000000-0x00000001400CB000-memory.dmp

Filesize
812KB

Download