stealc | 8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260

Analysis

max time kernel
83s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 01:51

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General

Target

8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260N.exe
Size

1.7MB
MD5

f3237f81afa56e6f54369ca2a98beb90
SHA1

718bc313b7b3ba5dffdcf157421582547e4d2c2f
SHA256

8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260
SHA512

f163fc8e8282125b5bf8306edd1029fee0724578d9c5cfd16ca976055bb1f37afd7ed7fbb6be730745ff74c82afef2b071718393e7fff0b41de399a4dd1c9be4
SSDEEP

49152:TWzTqNaHWzakLV/s1aR9Wjn4zREeosVjtvjWTRFGa86C:6z+NQWzD/yjn4zVJa2Vb

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260N.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260N.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2664	8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260N.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2664	8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260N.exe

C:\Users\Admin\AppData\Local\Temp\8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260N.exe
"C:\Users\Admin\AppData\Local\Temp\8797b7e5edfcffb2943103f14e99d32534e3a8d19de4476811cb3de24c834260N.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:2664

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/2664-0-0x0000000000270000-0x00000000008F7000-memory.dmp

Filesize
6.5MB

Download
memory/2664-1-0x00000000772B0000-0x00000000772B2000-memory.dmp

Filesize
8KB

Download
memory/2664-2-0x0000000000271000-0x0000000000288000-memory.dmp

Filesize
92KB

Download
memory/2664-3-0x0000000000270000-0x00000000008F7000-memory.dmp

Filesize
6.5MB

Download
memory/2664-4-0x0000000000270000-0x00000000008F7000-memory.dmp

Filesize
6.5MB

Download
memory/2664-5-0x0000000000270000-0x00000000008F7000-memory.dmp

Filesize
6.5MB

Download
memory/2664-6-0x0000000000270000-0x00000000008F7000-memory.dmp

Filesize
6.5MB

Download
memory/2664-7-0x0000000000270000-0x00000000008F7000-memory.dmp

Filesize
6.5MB

Download