stealc | 89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 20:58

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General

Target

89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.exe
Size

1.7MB
MD5

d29fe9bbf311ddbd5467cf4d545ea0b6
SHA1

7bbbe4bf8a24eaad27948bfe9b69f42973678ea5
SHA256

89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe
SHA512

4f6b34c4e0cd20c2b2f2541df141df037f851b6a23091bfb8adb2366b23b548a47ae9dd62b0178c5249d81f84739d82762ffecb65644ff90b97755766ebe57b6
SSDEEP

49152:8GhMU+Pnkps4vigSVlG9MXPzyzKTO+XBC2:8AimcVlGcy+O+XB9

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__	89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.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	89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3064	89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.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	89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3064	89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.exe
3064	89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.exe

C:\Users\Admin\AppData\Local\Temp\89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.exe
"C:\Users\Admin\AppData\Local\Temp\89855de8b804ede1617efa82b37803fe5b07e96763cb190140164e44942a0ffe.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:3064

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/3064-0-0x0000000000540000-0x0000000000BD5000-memory.dmp

Filesize
6.6MB

Download
memory/3064-1-0x00000000774D4000-0x00000000774D6000-memory.dmp

Filesize
8KB

Download
memory/3064-2-0x0000000000541000-0x0000000000558000-memory.dmp

Filesize
92KB

Download
memory/3064-3-0x0000000000540000-0x0000000000BD5000-memory.dmp

Filesize
6.6MB

Download
memory/3064-5-0x0000000000540000-0x0000000000BD5000-memory.dmp

Filesize
6.6MB

Download