stealc | d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2

General

Target

d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe
Size

2.8MB
MD5

bb44422919d44c41ba392b6fad35f9e3
SHA1

0a9332cd23a8cfa6092709bc133d7052d2d43c05
SHA256

d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2
SHA512

2ce8ab147380afd27a12f2f9f325566751ed208ef0529cd6d6a45634914dedf6f1ca2fd4cde579a30ec667873a60909f0540615e37da2c274afc40a02a914d07
SSDEEP

49152:U3A4Bxe3BgfE367T1Jc77X9h7tAUYxnUzGZe9f/p+n:WA4Bxe3Bgf66X1JcFh7hYxn2ue9Qn

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__	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.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	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.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	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.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
2768	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2092	2768	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	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.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	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2768	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe
2768	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2768 wrote to memory of 2092	2768	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe	32
PID 2768 wrote to memory of 2092	2768	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe	32
PID 2768 wrote to memory of 2092	2768	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe	32
PID 2768 wrote to memory of 2092	2768	d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe	32

C:\Users\Admin\AppData\Local\Temp\d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.exe
"C:\Users\Admin\AppData\Local\Temp\d12207e5d2e2668de9c381a14a35a6199a0d6c50cbed1164340ac61bb1eb85d2.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:2768
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2768 -s 932
  2⤵
  - Program crash
  PID:2092

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/2768-0-0x0000000000EE0000-0x00000000013D7000-memory.dmp

Filesize
5.0MB

Download
memory/2768-1-0x0000000077B30000-0x0000000077B32000-memory.dmp

Filesize
8KB

Download
memory/2768-2-0x0000000000EE1000-0x0000000000EF8000-memory.dmp

Filesize
92KB

Download
memory/2768-3-0x0000000000EE0000-0x00000000013D7000-memory.dmp

Filesize
5.0MB

Download
memory/2768-4-0x0000000000EE0000-0x00000000013D7000-memory.dmp

Filesize
5.0MB

Download
memory/2768-5-0x0000000000EE0000-0x00000000013D7000-memory.dmp

Filesize
5.0MB

Download
memory/2768-6-0x0000000000EE0000-0x00000000013D7000-memory.dmp

Filesize
5.0MB

Download
memory/2768-7-0x0000000000EE0000-0x00000000013D7000-memory.dmp

Filesize
5.0MB

Download
memory/2768-8-0x0000000000EE0000-0x00000000013D7000-memory.dmp

Filesize
5.0MB

Download
memory/2768-9-0x0000000000EE0000-0x00000000013D7000-memory.dmp

Filesize
5.0MB

Download
memory/2768-10-0x0000000000EE0000-0x00000000013D7000-memory.dmp

Filesize
5.0MB

Download
memory/2768-11-0x0000000000EE0000-0x00000000013D7000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads