stealc | 73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 11:15

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General

Target

73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe
Size

1.7MB
MD5

5bf14ffcdce82bc2bfe3fdac59fe51dd
SHA1

111cbbd1f261eada0f3e1ca97ee345d14b61393a
SHA256

73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881
SHA512

4dd1144fe713e92aefba51504708bab1e88d443d4a7a90a33240e8fe7367db4b6592ab18f05ee950015acf0067b446ef2ca62df78dfc551ad0ee89857630c70e
SSDEEP

24576:M8ZtqtQUeQK5wHm3CZ7IFcLPDornR9QAOnKtmp522vqRqHvIej:9N5py5ImLP0ntOKYD2ijgW

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:

73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.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:

73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.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:

73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe

pid	Process
596	73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.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:

73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe

pid	Process
596	73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe

C:\Users\Admin\AppData\Local\Temp\73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.exe
"C:\Users\Admin\AppData\Local\Temp\73df94098c3acc25abea1efd0d52fb2cbbdd89fb17ec01523aa7afdddcdc5881.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:596

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

Replay Monitor

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Downloads

memory/596-0-0x0000000000D70000-0x0000000001412000-memory.dmp

Filesize
6.6MB

Download
memory/596-1-0x0000000077770000-0x0000000077772000-memory.dmp

Filesize
8KB

Download
memory/596-2-0x0000000000D71000-0x0000000000D88000-memory.dmp

Filesize
92KB

Download
memory/596-3-0x0000000000D70000-0x0000000001412000-memory.dmp

Filesize
6.6MB

Download
memory/596-5-0x0000000000D70000-0x0000000001412000-memory.dmp

Filesize
6.6MB

Download