stealc | 0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709

General

Target

0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe
Size

1.7MB
MD5

2253fe8a45eeeb110df97f22b414c678
SHA1

1aeb545fce680e0cc8879729963dece7be2528ed
SHA256

0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709
SHA512

1e3d91f240747c92887d3122adcb232ac4493700ab666c0f0ac446090a1fddd4028cda79956bd6bae1c2d36ebb952c894a7255a4ebee4e9d4b3ff8d0d1258fce
SSDEEP

24576:bdcoRsJQmZCcOAAKrHL7FY2uzaWHCPByHhhgQpFNL+jcKYO70MsPfdsXqhFan:bdsOmZCarHkdZ1pFNlO70MQdsaf

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__	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.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	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.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-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.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
1664	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2656	1664	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	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.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	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1664	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe
1664	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 2656	1664	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe	32
PID 1664 wrote to memory of 2656	1664	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe	32
PID 1664 wrote to memory of 2656	1664	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe	32
PID 1664 wrote to memory of 2656	1664	0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe	32

C:\Users\Admin\AppData\Local\Temp\0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.exe
"C:\Users\Admin\AppData\Local\Temp\0412585671517c0505b9d15dc3bc007944fc1303342553d0b1d35ab586a99709.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:1664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1664 -s 932
  2⤵
  - Program crash
  PID:2656

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/1664-0-0x00000000013D0000-0x0000000001A67000-memory.dmp

Filesize
6.6MB

Download
memory/1664-1-0x0000000077040000-0x0000000077042000-memory.dmp

Filesize
8KB

Download
memory/1664-2-0x00000000013D1000-0x00000000013E8000-memory.dmp

Filesize
92KB

Download
memory/1664-3-0x00000000013D0000-0x0000000001A67000-memory.dmp

Filesize
6.6MB

Download
memory/1664-4-0x00000000013D0000-0x0000000001A67000-memory.dmp

Filesize
6.6MB

Download
memory/1664-5-0x00000000013D0000-0x0000000001A67000-memory.dmp

Filesize
6.6MB

Download
memory/1664-6-0x00000000013D0000-0x0000000001A67000-memory.dmp

Filesize
6.6MB

Download
memory/1664-7-0x00000000013D0000-0x0000000001A67000-memory.dmp

Filesize
6.6MB

Download
memory/1664-8-0x00000000013D0000-0x0000000001A67000-memory.dmp

Filesize
6.6MB

Download
memory/1664-9-0x00000000013D0000-0x0000000001A67000-memory.dmp

Filesize
6.6MB

Download
memory/1664-10-0x00000000013D0000-0x0000000001A67000-memory.dmp

Filesize
6.6MB

Download
memory/1664-11-0x00000000013D0000-0x0000000001A67000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads