stealc | 000c2f7718a23707cef9d7a0bea1587cfebbf5f7c866a2c4cd1c800df376f7bc

Analysis

max time kernel
149s
max time network
131s
platform
windows11-21h2_x64
resource
win11-20251015-en
resource tags

arch:x64arch:x86image:win11-20251015-enlocale:en-usos:windows11-21h2-x64system
submitted
06/11/2025, 07:13

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General

Target
file.exe
Size 3.3MB
Sample251106-h161yaylez
SHA256 000c2f7718a23707cef9d7a0bea1587cfebbf5f7c866a2c4cd1c800df376f7bc
MD5 8cf103c306718acf96a1e66d2e788ddf
SHA1 c301df1f90ce11924520a5a757021fc9bcf434be
SHA512 d07474c3dedf9eee84fdb05ff915dc5e5db1b3fff77690762865c038bbddcbd591483549acc027b66f7f1ff12e11e045d95d0f72144eb7ec4bc600a67be65e71
SSDEEP 98304:xziwSmNK5MxhA67sTnkzruQN/vZGVQVYszd:tiwHNDxm67sTnQXZxOY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tr1pernn defense_evasion discovery stealc spyware stealer themida trojan

Malware Config

Extracted

Family

stealc

Botnet

tr1pernn

http://178.16.54.175

Attributes

url_path
/fc98bed393364b52.php

rc4.plain

Signatures

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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.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

Themida packer 11 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/3304-2-0x0000000140000000-0x00000001408E0000-memory.dmp	themida
behavioral2/memory/3304-1-0x0000000140000000-0x00000001408E0000-memory.dmp	themida
behavioral2/memory/3304-0-0x0000000140000000-0x00000001408E0000-memory.dmp	themida
behavioral2/memory/3304-3-0x0000000140000000-0x00000001408E0000-memory.dmp	themida
behavioral2/memory/3304-4-0x0000000140000000-0x00000001408E0000-memory.dmp	themida
behavioral2/memory/3304-6-0x0000000140000000-0x00000001408E0000-memory.dmp	themida
behavioral2/memory/3304-8-0x0000000140000000-0x00000001408E0000-memory.dmp	themida
behavioral2/memory/3304-12-0x0000000140000000-0x00000001408E0000-memory.dmp	themida
behavioral2/memory/3304-16-0x0000000140000000-0x00000001408E0000-memory.dmp	themida
behavioral2/memory/3304-20-0x0000000140000000-0x00000001408E0000-memory.dmp	themida
behavioral2/memory/3304-24-0x0000000140000000-0x00000001408E0000-memory.dmp	themida

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

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	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

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3304	file.exe
3304	file.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3304 wrote to memory of 4596	3304	file.exe	78
PID 3304 wrote to memory of 4596	3304	file.exe	78
PID 3304 wrote to memory of 4596	3304	file.exe	78

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3304
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe"
  2⤵
  PID:4596

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:6012

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

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

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

6C0A1608-9507-66FC-8350-1F04DB18B78C.txt

Path C:\ProgramData\6C0A1608-9507-66FC-8350-1F04DB18B78C.txt
Size 64B
SHA256 0e9f6faab29b79c7bbc4f9cf6a44c7b19a1e699d87b2a6118b2760305bfa6f11
MD5 bf40b9d36317c76a6f3eecfb20daf2fd
SHA1 01cd963765d22ed29858a442423ceff200a3a1d2
SHA512 2b82de209eb73283bcf794ca82c50e2e623a4e1057f51ca7aa4d31f9d32642a2ec6e37a3e2215841d1c015d9bdba8224435788e72b73f10cd633f64dca7204d4
MD5 SHA1 SHA512

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memory/3304-2-0x0000000140000000-0x00000001408E0000-memory.dmp

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memory/3304-1-0x0000000140000000-0x00000001408E0000-memory.dmp

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memory/3304-0-0x0000000140000000-0x00000001408E0000-memory.dmp

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memory/3304-3-0x0000000140000000-0x00000001408E0000-memory.dmp

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memory/3304-4-0x0000000140000000-0x00000001408E0000-memory.dmp

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memory/3304-6-0x0000000140000000-0x00000001408E0000-memory.dmp

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memory/3304-8-0x0000000140000000-0x00000001408E0000-memory.dmp

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memory/3304-12-0x0000000140000000-0x00000001408E0000-memory.dmp

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memory/3304-16-0x0000000140000000-0x00000001408E0000-memory.dmp

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memory/3304-20-0x0000000140000000-0x00000001408E0000-memory.dmp

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memory/3304-24-0x0000000140000000-0x00000001408E0000-memory.dmp

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