stealc | d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 03:00

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General

Target

d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe
Size

1.7MB
MD5

405dcfb77eb969d356061f551b1d3a1f
SHA1

28aabbccb4b5f095e4046fbcb5148b9813de756b
SHA256

d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0
SHA512

bb8a4f340a2e3b8b8fe8913da46cf2f7e1887128971ecb94832292f66ca7f00af91d6b1384957788fb11e2d487942a80c1c77515906dba22908627fa20ac0a41
SSDEEP

49152:iHvmWWyXuC7RzSsG4niqDydWu3CIzNIvU4TB:i+hKvvcWu3bIsO

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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

Processes:

d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.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

Processes:

d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.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

Processes:

d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

pid process

1256 d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

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

Processes:

d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

pid	process
1256	d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe
1256	d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe

C:\Users\Admin\AppData\Local\Temp\d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.exe
"C:\Users\Admin\AppData\Local\Temp\d23c929cadf5890a5afadd25b36e9d73fa8328c0fe7d750578cf59fba2cf72e0.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
- Suspicious behavior: EnumeratesProcesses
PID:1256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1256-0-0x00000000007E0000-0x0000000000E7D000-memory.dmp

Filesize
6.6MB

Download
memory/1256-1-0x00000000773E4000-0x00000000773E6000-memory.dmp

Filesize
8KB

Download
memory/1256-2-0x00000000007E1000-0x00000000007F8000-memory.dmp

Filesize
92KB

Download
memory/1256-3-0x00000000007E0000-0x0000000000E7D000-memory.dmp

Filesize
6.6MB

Download
memory/1256-4-0x00000000007E0000-0x0000000000E7D000-memory.dmp

Filesize
6.6MB

Download