stealc | 30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd

General

Target

30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.exe
Size

2.8MB
MD5

c4b3e529888b95d857ab1b2e80b1521e
SHA1

766c52d4b3ce0499e1b3741ac7340ef7be269bc5
SHA256

30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd
SHA512

443687c0f80628b719605acf70083587881ad57fdbd82d313ef53d7c207e2bdbbb9a6eaf182f71d80cf2a9c00d0aa71993e2927f3ecc1397404fbe993e13acdc
SSDEEP

49152:H5TyZnSWxefP7/RzxLr5XQfe7CocYIGd7tTO:H5yZnSWxobnLrtYWCzdiN

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__	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.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	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.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-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.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
4244	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1672	4244	WerFault.exe	84

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	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.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	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4244	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.exe
4244	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.exe
4244	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.exe
4244	30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.exe

C:\Users\Admin\AppData\Local\Temp\30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.exe
"C:\Users\Admin\AppData\Local\Temp\30a3df00160feaf60704951884cb3917f4553703e949c449cbcc0bd24cec0ebd.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
PID:4244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4244 -s 1480
  2⤵
  - Program crash
  PID:1672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4244 -ip 4244
1⤵
PID:3300

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/4244-0-0x0000000000DC0000-0x00000000012BE000-memory.dmp

Filesize
5.0MB

Download
memory/4244-1-0x0000000077194000-0x0000000077196000-memory.dmp

Filesize
8KB

Download
memory/4244-2-0x0000000000DC1000-0x0000000000DD8000-memory.dmp

Filesize
92KB

Download
memory/4244-3-0x0000000000DC0000-0x00000000012BE000-memory.dmp

Filesize
5.0MB

Download
memory/4244-4-0x0000000000DC0000-0x00000000012BE000-memory.dmp

Filesize
5.0MB

Download
memory/4244-5-0x0000000000DC0000-0x00000000012BE000-memory.dmp

Filesize
5.0MB

Download
memory/4244-6-0x0000000000DC0000-0x00000000012BE000-memory.dmp

Filesize
5.0MB

Download
memory/4244-7-0x0000000000DC0000-0x00000000012BE000-memory.dmp

Filesize
5.0MB

Download
memory/4244-8-0x0000000000DC0000-0x00000000012BE000-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