stealc | ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3

General

Target

ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe
Size

1.7MB
MD5

618e8c56ee1d0eb4452ddc958c122ccd
SHA1

fbcf0e3d11cba2db46aee470accb6b24982d8979
SHA256

ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3
SHA512

b6d7c2a5b9f8ead2dcf072471c2a5124f14c94d20af6620b72080a73d14d2ba0239b26b934151c760696a5ec9df18792c907b8a5e016a181151cec42c052bba1
SSDEEP

49152:aPO/wC1efy92CIkA3VgVfUmYu1hA15HC:aPZjcQVgVMmYuf41C

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__	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.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	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.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
2784	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2812	2784	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	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.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	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2784	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe
2784	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 2812	2784	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe	32
PID 2784 wrote to memory of 2812	2784	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe	32
PID 2784 wrote to memory of 2812	2784	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe	32
PID 2784 wrote to memory of 2812	2784	ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe	32

C:\Users\Admin\AppData\Local\Temp\ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.exe
"C:\Users\Admin\AppData\Local\Temp\ae09c1ef298ba97b3b0a6315682647c7b6f30e69c7b2ecb23f585fb559e1e6b3.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:2784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2784 -s 924
  2⤵
  - Program crash
  PID:2812

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/2784-0-0x0000000000870000-0x0000000000EF9000-memory.dmp

Filesize
6.5MB

Download
memory/2784-1-0x0000000077850000-0x0000000077852000-memory.dmp

Filesize
8KB

Download
memory/2784-2-0x0000000000871000-0x0000000000888000-memory.dmp

Filesize
92KB

Download
memory/2784-3-0x0000000000870000-0x0000000000EF9000-memory.dmp

Filesize
6.5MB

Download
memory/2784-4-0x0000000000870000-0x0000000000EF9000-memory.dmp

Filesize
6.5MB

Download
memory/2784-5-0x0000000000870000-0x0000000000EF9000-memory.dmp

Filesize
6.5MB

Download
memory/2784-6-0x0000000000870000-0x0000000000EF9000-memory.dmp

Filesize
6.5MB

Download
memory/2784-7-0x0000000000870000-0x0000000000EF9000-memory.dmp

Filesize
6.5MB

Download
memory/2784-8-0x0000000000870000-0x0000000000EF9000-memory.dmp

Filesize
6.5MB

Download
memory/2784-9-0x0000000000870000-0x0000000000EF9000-memory.dmp

Filesize
6.5MB

Download
memory/2784-10-0x0000000000870000-0x0000000000EF9000-memory.dmp

Filesize
6.5MB

Download
memory/2784-11-0x0000000000870000-0x0000000000EF9000-memory.dmp

Filesize
6.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads