stealc | 7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a

General

Target

7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.exe
Size

1.7MB
MD5

a06666cc80c0d01dfb3bca7f6265b517
SHA1

ccd5ae131c913a73f69371d8f4cb0ca10d2bdf7a
SHA256

7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a
SHA512

b8bc1a867ee4e34d8df785297fdf2d62c364cf4b9ce73a7a4e9c6d47502c5bf4062fea21aee6db9de2804aa41585a4c00cdab59090ef4e2cbc0de404488b5b7f
SSDEEP

49152:cCd5cYrQPocYOp8OG6Hrr3GIowEf0/FAV5cKGqAa9V5:F5dOpxLLWw4MKlAaT

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__	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.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	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.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
4188	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
752	4188	WerFault.exe	84

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	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.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	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4188	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.exe
4188	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.exe
4188	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.exe
4188	7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.exe

C:\Users\Admin\AppData\Local\Temp\7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.exe
"C:\Users\Admin\AppData\Local\Temp\7d8425a278d2da6dd9013a4de97448b561f13feed49f04ed71c5727a38f9153a.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:4188
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4188 -s 1484
  2⤵
  - Program crash
  PID:752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4188 -ip 4188
1⤵
PID:3120

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/4188-0-0x0000000000AE0000-0x0000000001183000-memory.dmp

Filesize
6.6MB

Download
memory/4188-1-0x00000000770C4000-0x00000000770C6000-memory.dmp

Filesize
8KB

Download
memory/4188-2-0x0000000000AE1000-0x0000000000AF8000-memory.dmp

Filesize
92KB

Download
memory/4188-3-0x0000000000AE0000-0x0000000001183000-memory.dmp

Filesize
6.6MB

Download
memory/4188-4-0x0000000000AE0000-0x0000000001183000-memory.dmp

Filesize
6.6MB

Download
memory/4188-5-0x0000000000AE0000-0x0000000001183000-memory.dmp

Filesize
6.6MB

Download
memory/4188-6-0x0000000000AE0000-0x0000000001183000-memory.dmp

Filesize
6.6MB

Download
memory/4188-7-0x0000000000AE0000-0x0000000001183000-memory.dmp

Filesize
6.6MB

Download
memory/4188-8-0x0000000000AE0000-0x0000000001183000-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