stealc | ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee

General

Target

ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe
Size

1.8MB
MD5

7c3e03e3adfa97817e1b184b4bdfe68e
SHA1

ddbac3163d9aad2a4f4313cab1e3d5e93afe2458
SHA256

ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee
SHA512

efc853f2524e2a4604411d8ae08ccf1f03e42e17537d8ef17f881954d192f6a6e806ea5cf145bb33b62c29d71a0043a70dd2076eb3a3b98c82cb49f9ae518c9b
SSDEEP

49152:r162nbpm0VEjrZ6LuAMOF/L8XKy2TdjSrKl14L1J:h62nb00Vgl6LuAMOh5y2ZjVl1U1

Score

10^/10

stealc brat defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

brat

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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.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	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.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
1496	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2108	1496	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	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1496	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe
1496	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 2108	1496	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe	31
PID 1496 wrote to memory of 2108	1496	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe	31
PID 1496 wrote to memory of 2108	1496	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe	31
PID 1496 wrote to memory of 2108	1496	ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe	31

C:\Users\Admin\AppData\Local\Temp\ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.exe
"C:\Users\Admin\AppData\Local\Temp\ab01285ddc93dc762aba3a1330473a84f132733432438baa21f2b26cefe275ee.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:1496
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 920
  2⤵
  - Program crash
  PID:2108

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/1496-0-0x00000000009D0000-0x000000000107C000-memory.dmp

Filesize
6.7MB

Download
memory/1496-1-0x0000000077890000-0x0000000077892000-memory.dmp

Filesize
8KB

Download
memory/1496-2-0x00000000009D1000-0x00000000009E8000-memory.dmp

Filesize
92KB

Download
memory/1496-3-0x00000000009D0000-0x000000000107C000-memory.dmp

Filesize
6.7MB

Download
memory/1496-4-0x00000000009D0000-0x000000000107C000-memory.dmp

Filesize
6.7MB

Download
memory/1496-5-0x00000000009D0000-0x000000000107C000-memory.dmp

Filesize
6.7MB

Download
memory/1496-6-0x00000000009D0000-0x000000000107C000-memory.dmp

Filesize
6.7MB

Download
memory/1496-7-0x00000000009D0000-0x000000000107C000-memory.dmp

Filesize
6.7MB

Download
memory/1496-8-0x00000000009D0000-0x000000000107C000-memory.dmp

Filesize
6.7MB

Download
memory/1496-9-0x00000000009D0000-0x000000000107C000-memory.dmp

Filesize
6.7MB

Download
memory/1496-10-0x00000000009D0000-0x000000000107C000-memory.dmp

Filesize
6.7MB

Download
memory/1496-11-0x00000000009D0000-0x000000000107C000-memory.dmp

Filesize
6.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads