stealc | ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 03:13

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General

Target

ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe
Size

1.7MB
MD5

57bb4cd54071751d43da290c1c22e00d
SHA1

b8877f045e17e3349ee0c169a1beeb667509fd0a
SHA256

ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7
SHA512

cf793ad9b89bbff3565cc028dd5bce0f1581c8ac8c99c1d4b2a09f90741514c06f6524da83414e836db0cbb2de5a3edc512f91e7b9f16dcc191d693a0870fd4d
SSDEEP

24576:K7N6dixcFMHMGg3qpjDc7irOsNfUB4gECHBCyRTh2vJvL8Q222aMR/y7gwDeMyJu:Kc5MsF6w7ivfUBoyBPy75eM1NV+

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:

ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.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:

ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.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:

ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine	ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

pid process

2060 ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

pid	process
2060	ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.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:

ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

pid process

2060 ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

pid	process
2060	ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe

C:\Users\Admin\AppData\Local\Temp\ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.exe
"C:\Users\Admin\AppData\Local\Temp\ab6ca57559ee60d91fe5206b830b0c4ec7e28d032bf9313582aad6c7e84e42e7.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:2060

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/2060-0-0x0000000000FF0000-0x0000000001690000-memory.dmp

Filesize
6.6MB

Download
memory/2060-1-0x0000000077BB0000-0x0000000077BB2000-memory.dmp

Filesize
8KB

Download
memory/2060-2-0x0000000000FF1000-0x0000000001008000-memory.dmp

Filesize
92KB

Download
memory/2060-3-0x0000000000FF0000-0x0000000001690000-memory.dmp

Filesize
6.6MB

Download
memory/2060-4-0x0000000000FF0000-0x0000000001690000-memory.dmp

Filesize
6.6MB

Download