stealc | 95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa

General

Target

95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe
Size

4.9MB
MD5

f74c5b4d8418b94004a5ac4fdd332634
SHA1

75ec6782eecb9f871af245ffb3368e0700338a21
SHA256

95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa
SHA512

801af86a86f9cc2760c0066ea85f55e6a725286075d5de088d2faa316e676e76a5b6ec67df93d023952657226f9508e11a7c8ada961f866be9d0ba064664312b
SSDEEP

49152:7P6e0WYtsIldD++2F8e5Rfrij2tmz/HB5:7P6UYGAZp2F8lj0mz/h

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__	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.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	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.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
2884	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1860	2884	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	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.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	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2884	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe
2884	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 1860	2884	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe	32
PID 2884 wrote to memory of 1860	2884	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe	32
PID 2884 wrote to memory of 1860	2884	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe	32
PID 2884 wrote to memory of 1860	2884	95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe	32

C:\Users\Admin\AppData\Local\Temp\95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.exe
"C:\Users\Admin\AppData\Local\Temp\95ccf951de59f57474c9d6736facaa64b457ef28260a5d92dd311e2a77b4c3fa.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:2884
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2884 -s 936
  2⤵
  - Program crash
  PID:1860

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/2884-0-0x0000000000110000-0x00000000005F4000-memory.dmp

Filesize
4.9MB

Download
memory/2884-1-0x00000000775F0000-0x00000000775F2000-memory.dmp

Filesize
8KB

Download
memory/2884-2-0x0000000000111000-0x000000000035A000-memory.dmp

Filesize
2.3MB

Download
memory/2884-3-0x0000000000110000-0x00000000005F4000-memory.dmp

Filesize
4.9MB

Download
memory/2884-4-0x0000000000110000-0x00000000005F4000-memory.dmp

Filesize
4.9MB

Download
memory/2884-5-0x0000000000111000-0x000000000035A000-memory.dmp

Filesize
2.3MB

Download
memory/2884-6-0x0000000000110000-0x00000000005F4000-memory.dmp

Filesize
4.9MB

Download
memory/2884-7-0x0000000000110000-0x00000000005F4000-memory.dmp

Filesize
4.9MB

Download
memory/2884-8-0x0000000000110000-0x00000000005F4000-memory.dmp

Filesize
4.9MB

Download
memory/2884-9-0x0000000000110000-0x00000000005F4000-memory.dmp

Filesize
4.9MB

Download
memory/2884-10-0x0000000000110000-0x00000000005F4000-memory.dmp

Filesize
4.9MB

Download
memory/2884-11-0x0000000000110000-0x00000000005F4000-memory.dmp

Filesize
4.9MB

Download
memory/2884-12-0x0000000000110000-0x00000000005F4000-memory.dmp

Filesize
4.9MB

Download
memory/2884-13-0x0000000000111000-0x000000000035A000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads