stealc | d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2

General

Target

d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.exe
Size

1.7MB
MD5

b765cd081e85c75c29a6383d0e2bd7ab
SHA1

ae0eed46808a8f630834b4b70549403ae92e3296
SHA256

d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2
SHA512

8b47e2b591a2c720342c9d155e98837b591ed56b250c5e75f632369bc61b77169b635cdfd8150148c0493e3107f723882f9a4f674d31fc693c1c7e1b561c998c
SSDEEP

49152:L098HB+5/15umMrKGBPovmlQUKZQkKE/Yvi:o8HB+5N8mMrKGdovKQtZQkk

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__	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.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	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.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
2476	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4924	2476	WerFault.exe	82

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	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.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	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2476	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.exe
2476	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.exe
2476	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.exe
2476	d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.exe

C:\Users\Admin\AppData\Local\Temp\d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.exe
"C:\Users\Admin\AppData\Local\Temp\d23ebafbb5b74c493229aabc4a861255ce380b51e25027e11fb5a9a6304d71e2.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
PID:2476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2476 -s 1492
  2⤵
  - Program crash
  PID:4924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2476 -ip 2476
1⤵
PID:3224

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/2476-0-0x00000000009E0000-0x0000000001072000-memory.dmp

Filesize
6.6MB

Download
memory/2476-1-0x0000000077204000-0x0000000077206000-memory.dmp

Filesize
8KB

Download
memory/2476-2-0x00000000009E1000-0x00000000009F8000-memory.dmp

Filesize
92KB

Download
memory/2476-3-0x00000000009E0000-0x0000000001072000-memory.dmp

Filesize
6.6MB

Download
memory/2476-4-0x00000000009E0000-0x0000000001072000-memory.dmp

Filesize
6.6MB

Download
memory/2476-5-0x00000000009E0000-0x0000000001072000-memory.dmp

Filesize
6.6MB

Download
memory/2476-6-0x00000000009E0000-0x0000000001072000-memory.dmp

Filesize
6.6MB

Download
memory/2476-7-0x00000000009E0000-0x0000000001072000-memory.dmp

Filesize
6.6MB

Download
memory/2476-8-0x00000000009E0000-0x0000000001072000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads