stealc | 2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65

General

Target

2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe
Size

4.9MB
MD5

86469ee1374eb8662bae36d7dd5de6b1
SHA1

1b5f8571f39a8adee4a9054c8c2fc2f46fbbee27
SHA256

2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65
SHA512

19176b04fde01c9ca018d6eb1906a21c3cd06777d2ef871e040d08241370c84161c8b2e969f4090d142ce671a7bff0489f6e107ba9897d5ddb8b3b566560bc45
SSDEEP

49152:BT5uVicWbkLJ/C2pW+jh+paU27iWeF6sw6gNz2eE7WeMvaYr:/iicWbkLJ/C2pdO7dMvL

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__	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.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	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.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-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.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
1672	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1484	1672	WerFault.exe	27

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	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.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	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1672	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe
1672	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 1484	1672	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe	31
PID 1672 wrote to memory of 1484	1672	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe	31
PID 1672 wrote to memory of 1484	1672	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe	31
PID 1672 wrote to memory of 1484	1672	2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe	31

C:\Users\Admin\AppData\Local\Temp\2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.exe
"C:\Users\Admin\AppData\Local\Temp\2fd9b6f30c14646cb9de4189b522b244ef724dd65d22a7ba6532d61360fddd65.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:1672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1672 -s 932
  2⤵
  - Program crash
  PID:1484

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/1672-0-0x0000000000B80000-0x000000000106B000-memory.dmp

Filesize
4.9MB

Download
memory/1672-1-0x0000000077460000-0x0000000077462000-memory.dmp

Filesize
8KB

Download
memory/1672-2-0x0000000000B81000-0x0000000000DCA000-memory.dmp

Filesize
2.3MB

Download
memory/1672-3-0x0000000000B80000-0x000000000106B000-memory.dmp

Filesize
4.9MB

Download
memory/1672-4-0x0000000000B80000-0x000000000106B000-memory.dmp

Filesize
4.9MB

Download
memory/1672-5-0x0000000000B81000-0x0000000000DCA000-memory.dmp

Filesize
2.3MB

Download
memory/1672-6-0x0000000000B80000-0x000000000106B000-memory.dmp

Filesize
4.9MB

Download
memory/1672-7-0x0000000000B80000-0x000000000106B000-memory.dmp

Filesize
4.9MB

Download
memory/1672-8-0x0000000000B80000-0x000000000106B000-memory.dmp

Filesize
4.9MB

Download
memory/1672-9-0x0000000000B80000-0x000000000106B000-memory.dmp

Filesize
4.9MB

Download
memory/1672-10-0x0000000000B80000-0x000000000106B000-memory.dmp

Filesize
4.9MB

Download
memory/1672-11-0x0000000000B80000-0x000000000106B000-memory.dmp

Filesize
4.9MB

Download
memory/1672-12-0x0000000000B80000-0x000000000106B000-memory.dmp

Filesize
4.9MB

Download
memory/1672-13-0x0000000000B81000-0x0000000000DCA000-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