stealc | 7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779

General

Target

7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe
Size

2.8MB
MD5

6ad8c80adf22544fa38534491968ee1f
SHA1

10630c3020fcafd52ea2d67385fdee4278a65121
SHA256

7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779
SHA512

ad73321f2698d344832e991310d3c3e6f8ea494094c81f949b229f6e76b0a259dc364d958afd2562f5d2b0166cc0795ce297af20e072e46899a66a1332787a65
SSDEEP

49152:DOUWOwj+j90BI2+UVCKQz4WHvCRqHcmttDQ:DOnOug90BI2+UkKQzJOq8mTs

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.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	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.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.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.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
1304	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2132	1304	WerFault.exe	29

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	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.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	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1304	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe
1304	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 2132	1304	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe	32
PID 1304 wrote to memory of 2132	1304	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe	32
PID 1304 wrote to memory of 2132	1304	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe	32
PID 1304 wrote to memory of 2132	1304	7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe	32

C:\Users\Admin\AppData\Local\Temp\7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.exe
"C:\Users\Admin\AppData\Local\Temp\7bd38004d31037e2310abca4378bdc296a0a35bd3a5b4cc892d44bdbf5a89779.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:1304
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1304 -s 928
  2⤵
  - Program crash
  PID:2132

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/1304-0-0x0000000001090000-0x0000000001590000-memory.dmp

Filesize
5.0MB

Download
memory/1304-1-0x0000000077DC0000-0x0000000077DC2000-memory.dmp

Filesize
8KB

Download
memory/1304-2-0x0000000001091000-0x00000000010A8000-memory.dmp

Filesize
92KB

Download
memory/1304-3-0x0000000001090000-0x0000000001590000-memory.dmp

Filesize
5.0MB

Download
memory/1304-4-0x0000000001090000-0x0000000001590000-memory.dmp

Filesize
5.0MB

Download
memory/1304-5-0x0000000001090000-0x0000000001590000-memory.dmp

Filesize
5.0MB

Download
memory/1304-6-0x0000000001090000-0x0000000001590000-memory.dmp

Filesize
5.0MB

Download
memory/1304-7-0x0000000001090000-0x0000000001590000-memory.dmp

Filesize
5.0MB

Download
memory/1304-8-0x0000000001090000-0x0000000001590000-memory.dmp

Filesize
5.0MB

Download
memory/1304-9-0x0000000001090000-0x0000000001590000-memory.dmp

Filesize
5.0MB

Download
memory/1304-10-0x0000000001090000-0x0000000001590000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads