stealc | 9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344

General

Target

9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe
Size

2.7MB
MD5

332a4162dbeaa01b903e2cfb935c981e
SHA1

3af6fd07c1873fc064d2df8c432ac6c1d8751f6d
SHA256

9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344
SHA512

2454a1b88b7e66f0407a9a9781ea7a104325efc51cedebf1508c2e2b06438be5c37cc12c4692109d676428f9887768e17a14dfeccacad646827f9649a22ca3e4
SSDEEP

49152:kODta1az5/eiQxcu6HQvA4Mfgv+JrQCx2xgOY0OU:bg1az5/eiQxyHQI42gv+J4x5Y0O

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.php

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.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	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe

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 NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2848	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2124	2848	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.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	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2848	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe
2848	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2124	2848	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe	32
PID 2848 wrote to memory of 2124	2848	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe	32
PID 2848 wrote to memory of 2124	2848	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe	32
PID 2848 wrote to memory of 2124	2848	9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe	32

C:\Users\Admin\AppData\Local\Temp\9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe
"C:\Users\Admin\AppData\Local\Temp\9175feef2943b05dc196eca70af03b87b5a00af8bd0f88b87929561c68663344.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 928
  2⤵
  - Program crash
  PID:2124

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2848-0-0x0000000000A90000-0x0000000000F7B000-memory.dmp

Filesize
4.9MB

Download
memory/2848-1-0x00000000773E0000-0x00000000773E2000-memory.dmp

Filesize
8KB

Download
memory/2848-2-0x0000000000A91000-0x0000000000AA8000-memory.dmp

Filesize
92KB

Download
memory/2848-3-0x0000000000A90000-0x0000000000F7B000-memory.dmp

Filesize
4.9MB

Download
memory/2848-4-0x0000000000A90000-0x0000000000F7B000-memory.dmp

Filesize
4.9MB

Download
memory/2848-5-0x0000000000A90000-0x0000000000F7B000-memory.dmp

Filesize
4.9MB

Download
memory/2848-6-0x0000000000A90000-0x0000000000F7B000-memory.dmp

Filesize
4.9MB

Download
memory/2848-7-0x0000000000A90000-0x0000000000F7B000-memory.dmp

Filesize
4.9MB

Download
memory/2848-8-0x0000000000A90000-0x0000000000F7B000-memory.dmp

Filesize
4.9MB

Download
memory/2848-9-0x0000000000A90000-0x0000000000F7B000-memory.dmp

Filesize
4.9MB

Download
memory/2848-10-0x0000000000A90000-0x0000000000F7B000-memory.dmp

Filesize
4.9MB

Download
memory/2848-11-0x0000000000A90000-0x0000000000F7B000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads