stealc | ffce7a3896c7e9e8172737d45c1eaed7f62b0a09b65ce22c5eeff9f25b7ace9d

Analysis

max time kernel
149s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
07/10/2026, 01:39

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General

Target
file.exe
Size 2.2MB
Sample261007-b2374szyft
SHA256 ffce7a3896c7e9e8172737d45c1eaed7f62b0a09b65ce22c5eeff9f25b7ace9d
MD5 05f8f93fb8a821aade444de558350595
SHA1 a50e101f97d2b8a3be2e7a70cf1d0861bb7b48c0
SHA512 de0e4c19af46ed56bf376d61c3185af95910a710c5ad70e503c17507b162e8c5a067bf32af4eacfee5b8c666b94831d7ab0ebb766339279867f14044018701ed
SSDEEP 49152:lXNQlj2FwDS72vwURN26b5fyQnzHSqy3QS0Os:VNQle3ARvb5fbnztyH0O
TLSH
T19CA5231227D260B2EDB44BB2D4F74B93C236B4E66E785A8F2788444F1E729C4693171F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

my1 discovery stealc spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

http://91.92.241.109/78297b2fa2ac49ca8eb0.php

Attributes

url_path
/78297b2fa2ac49ca8eb0.php

rc4.traffic_key

rc4.plain

Signatures

Family: Stealc
Stealc is an infostealer written in C++.
stealer stealc

Detects Stealc stealer Version 3 20 IoCs

resource	yara_rule
behavioral1/memory/3856-11-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-26-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-27-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-24-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-23-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-22-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-21-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-20-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-19-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-18-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-17-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-16-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-15-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-14-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-13-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-25-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-34-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-41-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-50-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3
behavioral1/memory/3856-51-0x0000000140000000-0x00000001400D4000-memory.dmp	family_stealc_v3

Executes dropped EXE 2 IoCs

pid	Process
2012	AutoIt3.exe
3856	AutoIt3.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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 2012 set thread context of 3856	2012	AutoIt3.exe	98

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	AutoIt3.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	AutoIt3.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AutoIt3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AutoIt3.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2012	AutoIt3.exe
2012	AutoIt3.exe
2012	AutoIt3.exe
2012	AutoIt3.exe
2012	AutoIt3.exe
2012	AutoIt3.exe
2012	AutoIt3.exe
2012	AutoIt3.exe
3856	AutoIt3.exe
3856	AutoIt3.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2012	AutoIt3.exe
2012	AutoIt3.exe
2012	AutoIt3.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2012	AutoIt3.exe
2012	AutoIt3.exe
2012	AutoIt3.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 4908	5092	file.exe	86
PID 5092 wrote to memory of 2012	5092	file.exe	88
PID 2012 wrote to memory of 3856	2012	AutoIt3.exe	98
PID 2012 wrote to memory of 3856	2012	AutoIt3.exe	98
PID 2012 wrote to memory of 3856	2012	AutoIt3.exe	98
PID 3856 wrote to memory of 980	3856	AutoIt3.exe	101
PID 3856 wrote to memory of 980	3856	AutoIt3.exe	101
PID 3856 wrote to memory of 4556	3856	AutoIt3.exe	104
PID 3856 wrote to memory of 4556	3856	AutoIt3.exe	104
PID 3856 wrote to memory of 2500	3856	AutoIt3.exe	108
PID 3856 wrote to memory of 2500	3856	AutoIt3.exe	108
PID 3856 wrote to memory of 3640	3856	AutoIt3.exe	119
PID 3856 wrote to memory of 3640	3856	AutoIt3.exe	119

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5092
- C:\Windows\SYSTEM32\at.exe
  at.exe /3ZTtoBY3RmyGDox
  2⤵
  PID:4908
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AutoIt3.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AutoIt3.exe Bumper.a3x
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Reads the TCP/IP host and domain name from the registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2012
- - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AutoIt3.exe
    C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AutoIt3.exe
    3⤵
    - Executes dropped EXE
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3856
  - - C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      4⤵
      PID:980
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      4⤵
      PID:4556
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      4⤵
      PID:2500
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      4⤵
      PID:3640

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:4404

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:3956

C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
1⤵
PID:3860

C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
1⤵
PID:4256

C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
1⤵
PID:2536

C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
1⤵
PID:4848

C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
1⤵
PID:3324

C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
1⤵
PID:2212

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

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

3FC84C3F-EE64-74FB-78D7-ECD3C0EFF42B.txt

Path C:\ProgramData\3FC84C3F-EE64-74FB-78D7-ECD3C0EFF42B.txt
Size 64B
SHA256 29b34fdc710a53b7c9495595b7b3f2d44873da3d4556c1b5313c4f49a5d768dc
MD5 ddba47c6a468d8c6007e52e54526700e
SHA1 f5c9aa49a716b178990f86611178107aee1d93d3
SHA512 ce174303bd058e96b95c08ee99bba9e4f829884d7b7dba671e1f7a4e680fe817fe652307f9caa38ef6badcbdb75cc53238a26a68aad7a461126c12c215b2ec23
TLSH
T1D6A022280C8CAAC08C08082E3AC8208B8288228088300C08A008CECC0CA22A8C200088
MD5 SHA1 SHA512 TLSH

Submit Download

AutoIt3.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AutoIt3.exe
Size 1.1MB
SHA256 5d69a932a077fee044b193c28e84564143f5c7e51079ab48e88fef74ab0b77b7
MD5 80cdd5f19d704a001589976bae277bab
SHA1 96bb030389ac938c5ebc6bd2e9fcc86a10e5f2fd
SHA512 03fbfd02d348c2b54af3eeb022ae2f1be4e4f9b30352ceb2c7589233275a914ec4fd81ff8c1544bebf96a87e28c75fd81811e658f092536367395048a82bf8fa
SSDEEP 24576:HsTBc4JYoji1a2gOI6fQJ77jkD1KV3wKct4frNFOB:MTC4a4p+E72SwRcrK
TLSH
T1DA356C0673A4419EFEA7F1329607C60BD6B17C4A07779A6F02646B626F337711A2E331
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Bumper.a3x

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Bumper.a3x
Size 1.5MB
SHA256 69025eeb0b3c02d3d77d001c69bf21645df5d0e995808e9bfe582c98ccec63ef
MD5 1c3062720d95a2a472640b8ccafaf735
SHA1 3d4fd2ad4a63b28c0b83f38f96c179d36c9e1914
SHA512 965effc0f4871ab2950dd701a7b6408624ee84a710c4429444c9d32f9a0ad71b8a22cb69a9e63e3e1f12ef9d2375f647240e0ebe63598f86e4d0e02d1c2afb16
SSDEEP 24576:A6WMWbTaPZAeFifwShlyjSks6Gh/xEbEQp2fm6rAgsqRfaLl52LXwGklh:AXbOixwNSt6GrURp2zrqq1aLPH
TLSH
T1B97533100F837175EFE187A3947EAD52C11A6377ACD4164E6A8A50376EEA8CA0C35D2F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2012-7-0x00007FFFD6B90000-0x00007FFFD6D85000-memory.dmp

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memory/2012-8-0x0000026762F70000-0x0000026762F71000-memory.dmp

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memory/3856-20-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-16-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-27-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-24-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-23-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-22-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-21-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-11-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-19-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-18-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-17-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-26-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-15-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-14-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-13-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-25-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-10-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-34-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-41-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-50-0x0000000140000000-0x00000001400D4000-memory.dmp

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memory/3856-51-0x0000000140000000-0x00000001400D4000-memory.dmp

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