stealc | 5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34

General

Target

5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe
Size

2.7MB
MD5

7ca51dd886ec90836bbab5df592b69fd
SHA1

d11c96f20c08daf15a347b77e7ec9c3ac1d12066
SHA256

5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34
SHA512

4c4708572818d8297297f4e58d90971d0a1058e3e5cf13d41cc768637cc4b3089ffc7d901342fdef4ac77f2801b935d0003620b4ae68150bed449c1a7743d693
SSDEEP

49152:CF16B+XZ5VafH22vOHJn3351/xScQ8J42nbqopk:bsXVMH22vOHJn3a8JNm7

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__	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.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	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.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
2488	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1748	2488	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	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.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	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2488	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe
2488	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 1748	2488	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe	31
PID 2488 wrote to memory of 1748	2488	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe	31
PID 2488 wrote to memory of 1748	2488	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe	31
PID 2488 wrote to memory of 1748	2488	5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe	31

C:\Users\Admin\AppData\Local\Temp\5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.exe
"C:\Users\Admin\AppData\Local\Temp\5679209abbd756493f76f5ce42abe2fe5762a1142390d6216f1d92fcb7986d34.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:2488
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 924
  2⤵
  - Program crash
  PID:1748

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2488-0-0x0000000000A40000-0x0000000000F35000-memory.dmp

Filesize
5.0MB

Download
memory/2488-1-0x00000000771C0000-0x00000000771C2000-memory.dmp

Filesize
8KB

Download
memory/2488-2-0x0000000000A41000-0x0000000000A58000-memory.dmp

Filesize
92KB

Download
memory/2488-3-0x0000000000A40000-0x0000000000F35000-memory.dmp

Filesize
5.0MB

Download
memory/2488-4-0x0000000000A40000-0x0000000000F35000-memory.dmp

Filesize
5.0MB

Download
memory/2488-5-0x0000000000A40000-0x0000000000F35000-memory.dmp

Filesize
5.0MB

Download
memory/2488-6-0x0000000000A40000-0x0000000000F35000-memory.dmp

Filesize
5.0MB

Download
memory/2488-7-0x0000000000A40000-0x0000000000F35000-memory.dmp

Filesize
5.0MB

Download
memory/2488-8-0x0000000000A40000-0x0000000000F35000-memory.dmp

Filesize
5.0MB

Download
memory/2488-9-0x0000000000A40000-0x0000000000F35000-memory.dmp

Filesize
5.0MB

Download
memory/2488-10-0x0000000000A40000-0x0000000000F35000-memory.dmp

Filesize
5.0MB

Download
memory/2488-11-0x0000000000A40000-0x0000000000F35000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads