stealc | ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 02:48

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General

Target

ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe
Size

1.7MB
MD5

7c6cebc0b67c34551c68561c303a61dd
SHA1

47a98a783ee3a0c9d02e6d621171512888b9c4a6
SHA256

ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b
SHA512

51d949f7ebbcd7e63268c84c248cb43f6e78c025faeca0c48482534f9828f21b1afbf455c6bbf433aec8b027083910a4fb39f05c247ca61b11225dfc2f42d3e4
SSDEEP

49152:MmpA7+7syjBToHlWWJ5fyqkAn9KHRp0Yz9R9lrz:MmlmHoWrqhfRp04t

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:

ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.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:

ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.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:

ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

pid process

3044 ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

pid	process
3044	ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.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:

ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

pid process

3044 ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

pid	process
3044	ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe

C:\Users\Admin\AppData\Local\Temp\ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.exe
"C:\Users\Admin\AppData\Local\Temp\ab1cde35822418fb9a920ac806450588394245dd16669171e01bfa630459355b.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:3044

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/3044-0-0x0000000000340000-0x00000000009E2000-memory.dmp

Filesize
6.6MB

Download
memory/3044-1-0x0000000077460000-0x0000000077462000-memory.dmp

Filesize
8KB

Download
memory/3044-2-0x0000000000341000-0x0000000000358000-memory.dmp

Filesize
92KB

Download
memory/3044-3-0x0000000000340000-0x00000000009E2000-memory.dmp

Filesize
6.6MB

Download
memory/3044-4-0x0000000000340000-0x00000000009E2000-memory.dmp

Filesize
6.6MB

Download