stealc | 9d385acb88418f0b5e28ac0ff023700355d29841efb02e67c47ce96882a87f11

Analysis

max time kernel
92s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2025 18:44

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General

Target

EaseUSDataRecoveryWizardActivator.exe
Size

2.4MB
MD5

5b6a5176c441f4241780d4d3dede7b65
SHA1

02c1d8cc96e2898510737e48f573214355d96c7e
SHA256

9d385acb88418f0b5e28ac0ff023700355d29841efb02e67c47ce96882a87f11
SHA512

2a91d5a83011a739853d6617b50a2354945ea0d59f7679feee088fd6e007448bb423266cedb51efb92203bc39203cb8091d33d95b03fcaf42dc571e9cdb53a00
SSDEEP

49152:MDkUrkydBe7+nHcKlc2mZb5hOQYzpsc9FAXiBlYQQCXizyjW9NUKW+SGf5s8ZPn:M4UF8KlJm15h+lz9qmlY0iuy/7WlGfWO

Score

10^/10

stealc default discovery evasion stealer themida trojan

Malware Config

Extracted

Family

stealc

Botnet

default

http://212.118.37.224

Attributes

url_path
/bad9416e2db99d17.php

rc4.plain

Signatures

Detects Stealc stealer 3 IoCs

stealer

resource	yara_rule
behavioral2/memory/4540-62-0x0000000000400000-0x0000000000629000-memory.dmp	family_stealc
behavioral2/memory/4540-64-0x0000000077400000-0x00000000774F0000-memory.dmp	family_stealc
behavioral2/memory/4540-61-0x0000000000400000-0x0000000000629000-memory.dmp	family_stealc

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	default.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\SystemBiosVersion	default.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	default.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	EaseUSDataRecoveryWizardActivator.exe

Executes dropped EXE 1 IoCs

pid	Process
2184	default.exe

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/files/0x0032000000023b5c-9.dat	themida
behavioral2/memory/2184-22-0x00000000006A0000-0x0000000000D42000-memory.dmp	themida
behavioral2/memory/2184-66-0x00000000006A0000-0x0000000000D42000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2184	default.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2184 set thread context of 4540	2184	default.exe	88

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EaseUSDataRecoveryWizardActivator.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	default.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2184	default.exe
2184	default.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2184	default.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 2864	5032	EaseUSDataRecoveryWizardActivator.exe	83
PID 5032 wrote to memory of 2864	5032	EaseUSDataRecoveryWizardActivator.exe	83
PID 5032 wrote to memory of 2864	5032	EaseUSDataRecoveryWizardActivator.exe	83
PID 2864 wrote to memory of 2184	2864	cmd.exe	86
PID 2864 wrote to memory of 2184	2864	cmd.exe	86
PID 2864 wrote to memory of 2184	2864	cmd.exe	86
PID 2184 wrote to memory of 4540	2184	default.exe	88
PID 2184 wrote to memory of 4540	2184	default.exe	88
PID 2184 wrote to memory of 4540	2184	default.exe	88
PID 2184 wrote to memory of 4540	2184	default.exe	88
PID 2184 wrote to memory of 4540	2184	default.exe	88
PID 2184 wrote to memory of 4540	2184	default.exe	88
PID 2184 wrote to memory of 4540	2184	default.exe	88
PID 2184 wrote to memory of 4540	2184	default.exe	88

C:\Users\Admin\AppData\Local\Temp\EaseUSDataRecoveryWizardActivator.exe
"C:\Users\Admin\AppData\Local\Temp\EaseUSDataRecoveryWizardActivator.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\RUN.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2864
- - C:\Users\Admin\AppData\Local\Temp\RarSFX0\default.exe
    default.exe
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2184
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:4540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RarSFX0\RUN.bat

Filesize
28B

MD5
2564013ea57c20132134007ac8a37dbd

SHA1
5ec26c96779acc98efd4e7797772a86ddde225cb

SHA256
2e3c51c2d2a73917d48a93a5dec7b42535d78f0296ddfe851f2168aa8c757276

SHA512
96b76225b353f812acc3ea8f105b0db07bb9e3bae599781d9fbe8de3c9006beeba9384de365ddaae9189f7f2f3e3aadb99e8cfef56e4c5f8147ed583b5207664

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\default.exe

Filesize
3.4MB

MD5
0fbf7dcfc8f410deb6e8e68d94728da8

SHA1
41d243721b25fdb38704f9340cc232d7c8d62e19

SHA256
b2f78744469379909a0c81f0ecd4a25bd8fc01fd336b7e9d40d3472db6cca2fd

SHA512
67ebd9c6096d305fc4f9e36bb1a1836ea95fbb732bb5449e195f77f71ec41433233203cd07540ff6913822cc69d8f3449234c1fd69337c1a817b628d1374f82c

Download Submit
memory/2184-32-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-18-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-35-0x00000000053E0000-0x00000000053FC000-memory.dmp

Filesize
112KB

Download
memory/2184-14-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-15-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-13-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-17-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-34-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-19-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-16-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-22-0x00000000006A0000-0x0000000000D42000-memory.dmp

Filesize
6.6MB

Download
memory/2184-23-0x00000000054C0000-0x000000000555C000-memory.dmp

Filesize
624KB

Download
memory/2184-10-0x00000000006A0000-0x0000000000D42000-memory.dmp

Filesize
6.6MB

Download
memory/2184-25-0x0000000077420000-0x0000000077421000-memory.dmp

Filesize
4KB

Download
memory/2184-26-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-27-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-28-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-29-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-30-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-31-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-24-0x00000000006A0000-0x0000000000D42000-memory.dmp

Filesize
6.6MB

Download
memory/2184-12-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-11-0x0000000077420000-0x0000000077421000-memory.dmp

Filesize
4KB

Download
memory/2184-36-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-43-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-59-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-57-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-55-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-53-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-51-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-49-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-47-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-45-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-41-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-39-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-37-0x00000000053E0000-0x00000000053F5000-memory.dmp

Filesize
84KB

Download
memory/2184-67-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/2184-66-0x00000000006A0000-0x0000000000D42000-memory.dmp

Filesize
6.6MB

Download
memory/4540-61-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/4540-64-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download
memory/4540-62-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/4540-68-0x0000000077400000-0x00000000774F0000-memory.dmp

Filesize
960KB

Download