stealc | fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4c

General

Target

fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe
Size

2.7MB
MD5

9e1a015a00b2699812aedac1ea4e6060
SHA1

d3236de3ec97a7cbe724aa5de47ab27ac72f5bdc
SHA256

fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4c
SHA512

086add1bcf765419313e1aaf57fe5fd117bff6295e662da04803ea0ed50756aaada1ffa529a818ff4fdcf07c3c4801d5608143a3c5b48135fa3a670704c9a079
SSDEEP

49152:iZ2AarpaRerHQNceyqv8WbEOU/bbmnyLnURNuRbr:iZ2lrkRezQNcedUP8du

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__	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.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	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.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
2364	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2620	2364	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	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.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	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2364	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe
2364	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2620	2364	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe	32
PID 2364 wrote to memory of 2620	2364	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe	32
PID 2364 wrote to memory of 2620	2364	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe	32
PID 2364 wrote to memory of 2620	2364	fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe	32

C:\Users\Admin\AppData\Local\Temp\fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.exe
"C:\Users\Admin\AppData\Local\Temp\fad1e054eb8f33990d2a36b413323688a60c36eeb7cd1c6816de7160d827ff4cN.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:2364
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 928
  2⤵
  - Program crash
  PID:2620

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/2364-0-0x0000000000860000-0x0000000000D53000-memory.dmp

Filesize
4.9MB

Download
memory/2364-1-0x0000000077110000-0x0000000077112000-memory.dmp

Filesize
8KB

Download
memory/2364-2-0x0000000000861000-0x0000000000878000-memory.dmp

Filesize
92KB

Download
memory/2364-3-0x0000000000860000-0x0000000000D53000-memory.dmp

Filesize
4.9MB

Download
memory/2364-4-0x0000000000860000-0x0000000000D53000-memory.dmp

Filesize
4.9MB

Download
memory/2364-5-0x0000000000860000-0x0000000000D53000-memory.dmp

Filesize
4.9MB

Download
memory/2364-6-0x0000000000860000-0x0000000000D53000-memory.dmp

Filesize
4.9MB

Download
memory/2364-7-0x0000000000860000-0x0000000000D53000-memory.dmp

Filesize
4.9MB

Download
memory/2364-8-0x0000000000860000-0x0000000000D53000-memory.dmp

Filesize
4.9MB

Download
memory/2364-9-0x0000000000860000-0x0000000000D53000-memory.dmp

Filesize
4.9MB

Download
memory/2364-10-0x0000000000860000-0x0000000000D53000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads