stealc | 1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7

General

Target

1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe
Size

4.9MB
MD5

b0afc3be5ca9e3209b844f2cf69f0625
SHA1

1ed980c5573f8397f73abc0fe9c59d542763d826
SHA256

1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7
SHA512

c5980efcd27a04609f4c370e2adc2f64288d30542ade063d57442524b63738833f96c6c860fe5a7c4defae95ccdaab77c9afa52d305eaf00aded3cbc7bc49dec
SSDEEP

49152:uvrT7xNhLptuSMGCr5rqAQzyaS2bAMNmnF9IAP:OfNbltuSMGI5rq/7XbjNGfIA

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__	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.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	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.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
2140	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2616	2140	WerFault.exe	30

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	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.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	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2140	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe
2140	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2616	2140	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe	32
PID 2140 wrote to memory of 2616	2140	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe	32
PID 2140 wrote to memory of 2616	2140	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe	32
PID 2140 wrote to memory of 2616	2140	1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe	32

C:\Users\Admin\AppData\Local\Temp\1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.exe
"C:\Users\Admin\AppData\Local\Temp\1adbf12a222894fef2869b84725cf2671311cc73246ca7476a6e0807e46b5ec7.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:2140
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2140 -s 932
  2⤵
  - Program crash
  PID:2616

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/2140-0-0x0000000000B90000-0x0000000001084000-memory.dmp

Filesize
5.0MB

Download
memory/2140-1-0x0000000077590000-0x0000000077592000-memory.dmp

Filesize
8KB

Download
memory/2140-2-0x0000000000B91000-0x0000000000DDA000-memory.dmp

Filesize
2.3MB

Download
memory/2140-3-0x0000000000B90000-0x0000000001084000-memory.dmp

Filesize
5.0MB

Download
memory/2140-4-0x0000000000B90000-0x0000000001084000-memory.dmp

Filesize
5.0MB

Download
memory/2140-5-0x0000000000B91000-0x0000000000DDA000-memory.dmp

Filesize
2.3MB

Download
memory/2140-6-0x0000000000B90000-0x0000000001084000-memory.dmp

Filesize
5.0MB

Download
memory/2140-7-0x0000000000B90000-0x0000000001084000-memory.dmp

Filesize
5.0MB

Download
memory/2140-8-0x0000000000B90000-0x0000000001084000-memory.dmp

Filesize
5.0MB

Download
memory/2140-9-0x0000000000B90000-0x0000000001084000-memory.dmp

Filesize
5.0MB

Download
memory/2140-10-0x0000000000B90000-0x0000000001084000-memory.dmp

Filesize
5.0MB

Download
memory/2140-11-0x0000000000B90000-0x0000000001084000-memory.dmp

Filesize
5.0MB

Download
memory/2140-12-0x0000000000B90000-0x0000000001084000-memory.dmp

Filesize
5.0MB

Download
memory/2140-13-0x0000000000B91000-0x0000000000DDA000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads