arkei | ea1ca5d3d58a4873760f6f96d84b15f638b9a47a1f13ebdf84f3577e407dada7

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2023 21:22

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General

Target

2372-1-0x0000000000400000-0x000000000043D000-memory.exe
Size

244KB
MD5

1775fdce5e3ab5f34f4ec41ca7888188
SHA1

5e8fbeaf64b53fa1c16598fd60cf00303f64e936
SHA256

ea1ca5d3d58a4873760f6f96d84b15f638b9a47a1f13ebdf84f3577e407dada7
SHA512

adf85d0a52b9f4bf03e784a2c9fa30eabcfb3dbe29d97d81fbec8fb7702a1475b6c499074d01783fb9f2214f8ee8563a85f84a359caba129000541bf5505d783
SSDEEP

3072:Um/E8k9ZjpIL+zNch12KbAwSaSVJSp81b8EG:N/E8k91zz6/tq8EG

Score

10^/10

arkei stealer

Malware Config

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei

Drops file in System32 directory 1 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{751C7082-D86F-4CA1-AC3E-C32B89564CA0}.catalogItem	svchost.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1808

C:\Users\Admin\AppData\Local\Temp\2372-1-0x0000000000400000-0x000000000043D000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\2372-1-0x0000000000400000-0x000000000043D000-memory.exe"
1⤵
PID:2260

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2260-0-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

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