stealc | 7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb

Analysis

max time kernel
150s
max time network
159s
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 02:35

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General

Target

7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe
Size

1.7MB
MD5

cbca0ed5dafeb31daabe0a2f092d50d1
SHA1

cab57f59cff06d3f6fd8bcc0fb7d8c950d365fdf
SHA256

7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb
SHA512

c17f507d62c4ed4ca2641b2e0f5e52c55f2f32e046a4f53fa358335158e7bfadc0d5639523f1e3d3cbba1fc0d0e6160b3c0d97801f2e871f5c4d230e7ef35c95
SSDEEP

49152:Hny/mLhM70gIsZeZnb4EsBtXaW7CQ/dxY:HnWmLhM7JIsZeN4E+kUxY

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:

7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.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:

7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.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:

7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe

pid process

4080 7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.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:

7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe

pid	process
4080	7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe
4080	7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe

C:\Users\Admin\AppData\Local\Temp\7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.exe
"C:\Users\Admin\AppData\Local\Temp\7f9f6c1ccb628c0022abd2fe74b54afcb31df6a42b4a6c5257ef0524a495d9cb.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:4080

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/4080-0-0x00000000003E0000-0x0000000000A89000-memory.dmp

Filesize
6.7MB

Download
memory/4080-1-0x0000000077AF4000-0x0000000077AF6000-memory.dmp

Filesize
8KB

Download
memory/4080-2-0x00000000003E1000-0x00000000003F8000-memory.dmp

Filesize
92KB

Download
memory/4080-3-0x00000000003E0000-0x0000000000A89000-memory.dmp

Filesize
6.7MB

Download
memory/4080-4-0x00000000003E0000-0x0000000000A89000-memory.dmp

Filesize
6.7MB

Download