stealc | c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2

General

Target

c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe
Size

5.0MB
MD5

a7f7ab07b8e0883146876349af33e9bf
SHA1

fcf2c651b552472bd92e47f6664ef9077ef4b6cc
SHA256

c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2
SHA512

0d1b44e08ccd97975978bbcca90c5e922e62001b3febcd560ff39100454531333bacec6555e082b90931e787054038943c031b92bf05d0b45551cedcad6d04da
SSDEEP

49152:eP9MZg7VzYZX7ArNiFSbv03arrdmyXNX2lpO+7YoQN:8Yqa17ARiFSQarxrdXcOltN

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__	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.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	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.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	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.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
2536	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2620	2536	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	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.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	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2536	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe
2536	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2620	2536	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe	32
PID 2536 wrote to memory of 2620	2536	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe	32
PID 2536 wrote to memory of 2620	2536	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe	32
PID 2536 wrote to memory of 2620	2536	c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe	32

C:\Users\Admin\AppData\Local\Temp\c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.exe
"C:\Users\Admin\AppData\Local\Temp\c2e1647a27c7ef8dff592d7cc1611828d7020097ce7eecb6c4cc7ca9ab8f36b2.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:2536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2536 -s 932
  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/2536-0-0x0000000000280000-0x000000000077C000-memory.dmp

Filesize
5.0MB

Download
memory/2536-1-0x0000000077510000-0x0000000077512000-memory.dmp

Filesize
8KB

Download
memory/2536-2-0x0000000000281000-0x00000000004CA000-memory.dmp

Filesize
2.3MB

Download
memory/2536-3-0x0000000000280000-0x000000000077C000-memory.dmp

Filesize
5.0MB

Download
memory/2536-4-0x0000000000280000-0x000000000077C000-memory.dmp

Filesize
5.0MB

Download
memory/2536-5-0x0000000000281000-0x00000000004CA000-memory.dmp

Filesize
2.3MB

Download
memory/2536-6-0x0000000000280000-0x000000000077C000-memory.dmp

Filesize
5.0MB

Download
memory/2536-7-0x0000000000280000-0x000000000077C000-memory.dmp

Filesize
5.0MB

Download
memory/2536-8-0x0000000000280000-0x000000000077C000-memory.dmp

Filesize
5.0MB

Download
memory/2536-9-0x0000000000280000-0x000000000077C000-memory.dmp

Filesize
5.0MB

Download
memory/2536-10-0x0000000000280000-0x000000000077C000-memory.dmp

Filesize
5.0MB

Download
memory/2536-11-0x0000000000280000-0x000000000077C000-memory.dmp

Filesize
5.0MB

Download
memory/2536-12-0x0000000000280000-0x000000000077C000-memory.dmp

Filesize
5.0MB

Download
memory/2536-13-0x0000000000281000-0x00000000004CA000-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