stealc | 084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e

General

Target

084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.exe
Size

1.7MB
MD5

a5c8e1cb34e0966e67658d1a5dcbf151
SHA1

4ad23a922c4e68f9031064d25291797ab0cc6130
SHA256

084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e
SHA512

8fed13a4eb1039486e88c8d5c9413d1f9ce0a0c4d0540610346e3894adda822d0cc88568ab9e1286d7d25ea710273318e1b5d3d3f476c1123963985ecee0b7ce
SSDEEP

49152:nj+ZGhHNbp/nZhU8SdpB/Ka4aRm/xXYJFGdbO07GqP3e:KgZv/ZhAdphKa46KxXuwdZN3e

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__	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.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	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.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-1-5-21-940901362-3608833189-1915618603-1000\Software\Wine	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.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
3192	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4200	3192	WerFault.exe	82

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	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.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	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3192	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.exe
3192	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.exe
3192	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.exe
3192	084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.exe

C:\Users\Admin\AppData\Local\Temp\084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.exe
"C:\Users\Admin\AppData\Local\Temp\084dd0f273398d8c6558dec0c8ab58f48c1655e91a1526cdba23e925c1e38b0e.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:3192
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 1492
  2⤵
  - Program crash
  PID:4200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3192 -ip 3192
1⤵
PID:2332

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/3192-0-0x0000000000F60000-0x00000000015FD000-memory.dmp

Filesize
6.6MB

Download
memory/3192-1-0x0000000077164000-0x0000000077166000-memory.dmp

Filesize
8KB

Download
memory/3192-2-0x0000000000F61000-0x0000000000F78000-memory.dmp

Filesize
92KB

Download
memory/3192-3-0x0000000000F60000-0x00000000015FD000-memory.dmp

Filesize
6.6MB

Download
memory/3192-4-0x0000000000F60000-0x00000000015FD000-memory.dmp

Filesize
6.6MB

Download
memory/3192-5-0x0000000000F60000-0x00000000015FD000-memory.dmp

Filesize
6.6MB

Download
memory/3192-6-0x0000000000F60000-0x00000000015FD000-memory.dmp

Filesize
6.6MB

Download
memory/3192-7-0x0000000000F60000-0x00000000015FD000-memory.dmp

Filesize
6.6MB

Download
memory/3192-8-0x0000000000F60000-0x00000000015FD000-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