stealc | 2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589

General

Target

2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe
Size

1.7MB
MD5

026de52964103c3f11b72d6e321d5971
SHA1

33c73f71ef01e964ef44a778d0c76f6aadedc1b2
SHA256

2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589
SHA512

32528baaf8472978bb2cda82b5988103fb94555baf22e2c9044ca46e2b193b6e8eb37aeb77f9a2a8557c581767746705d318ea8fb378786ad56b7c33442e55f8
SSDEEP

49152:tUAG/BeGcy0GOOusWV2N6YYH+BEUqfj2uGkW:tUfe5y9Bfs/+BEUwW

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__	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.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	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.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-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.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
680	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4756	680	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	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.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	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
680	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe
680	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe
680	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe
680	2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe

C:\Users\Admin\AppData\Local\Temp\2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe
"C:\Users\Admin\AppData\Local\Temp\2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.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:680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 680 -s 1480
  2⤵
  - Program crash
  PID:4756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 680 -ip 680
1⤵
PID:728

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/680-0-0x00000000002F0000-0x000000000098C000-memory.dmp

Filesize
6.6MB

Download
memory/680-1-0x0000000077194000-0x0000000077196000-memory.dmp

Filesize
8KB

Download
memory/680-2-0x00000000002F1000-0x0000000000308000-memory.dmp

Filesize
92KB

Download
memory/680-3-0x00000000002F0000-0x000000000098C000-memory.dmp

Filesize
6.6MB

Download
memory/680-4-0x00000000002F0000-0x000000000098C000-memory.dmp

Filesize
6.6MB

Download
memory/680-5-0x00000000002F0000-0x000000000098C000-memory.dmp

Filesize
6.6MB

Download
memory/680-6-0x00000000002F0000-0x000000000098C000-memory.dmp

Filesize
6.6MB

Download
memory/680-7-0x00000000002F0000-0x000000000098C000-memory.dmp

Filesize
6.6MB

Download
memory/680-8-0x00000000002F0000-0x000000000098C000-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