stealc | 11201f9b216791855365b42659d114cc8c343a61d3239f8390c9d43ecbe7a679

General

Target

random.exe
Size

1.7MB
MD5

fef55d2c719d3b8dba0d89f08455d3c8
SHA1

2b3a14027c9df14cfa1e4776c9cd5cf0bbe73ab2
SHA256

11201f9b216791855365b42659d114cc8c343a61d3239f8390c9d43ecbe7a679
SHA512

4b9352a824c13b90cf9f5876bb0de53f16b2f46a30e5c6997654a487ef64c82d2406186af6fabfe0859ef877bd9dd27ff9a6cd4b980c9747127f689166291ec6
SSDEEP

49152:iWEAYa9z0Ea7+z7quxu+tKj4sLzXPChAFhvlYetfJYw9b:prHwiCuTs4sXfeAFhvlYSfp9

Score

10^/10

stealc kira defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

kira

C2

http://185.215.113.115

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__	random.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\VideoBiosVersion	random.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	random.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	random.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
2680	random.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1908	2680	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	random.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	random.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	random.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2680	random.exe
2680	random.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 1908	2680	random.exe	31
PID 2680 wrote to memory of 1908	2680	random.exe	31
PID 2680 wrote to memory of 1908	2680	random.exe	31
PID 2680 wrote to memory of 1908	2680	random.exe	31

C:\Users\Admin\AppData\Local\Temp\random.exe
"C:\Users\Admin\AppData\Local\Temp\random.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:2680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2680 -s 924
  2⤵
  - Program crash
  PID:1908

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/2680-0-0x0000000000E40000-0x00000000014DB000-memory.dmp

Filesize
6.6MB

Download
memory/2680-1-0x0000000076EE0000-0x0000000076EE2000-memory.dmp

Filesize
8KB

Download
memory/2680-2-0x0000000000E41000-0x0000000000E58000-memory.dmp

Filesize
92KB

Download
memory/2680-3-0x0000000000E40000-0x00000000014DB000-memory.dmp

Filesize
6.6MB

Download
memory/2680-4-0x0000000000E40000-0x00000000014DB000-memory.dmp

Filesize
6.6MB

Download
memory/2680-5-0x0000000000E40000-0x00000000014DB000-memory.dmp

Filesize
6.6MB

Download
memory/2680-6-0x0000000000E40000-0x00000000014DB000-memory.dmp

Filesize
6.6MB

Download
memory/2680-7-0x0000000000E40000-0x00000000014DB000-memory.dmp

Filesize
6.6MB

Download
memory/2680-8-0x0000000000E40000-0x00000000014DB000-memory.dmp

Filesize
6.6MB

Download
memory/2680-9-0x0000000000E40000-0x00000000014DB000-memory.dmp

Filesize
6.6MB

Download
memory/2680-10-0x0000000000E40000-0x00000000014DB000-memory.dmp

Filesize
6.6MB

Download
memory/2680-11-0x0000000000E40000-0x00000000014DB000-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