arkei | 09ae018ad25a48649ee3824aaa4251b388adc0c5f36c2355e28202adc737d353

Analysis

max time kernel
142s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2023 02:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

fa4a6f5d8a6d50893f37a8dc5b33cf78.exe
Size

244KB
MD5

fa4a6f5d8a6d50893f37a8dc5b33cf78
SHA1

01d3a6b05db6ab86b1d2725efa320a54ad0db2d9
SHA256

09ae018ad25a48649ee3824aaa4251b388adc0c5f36c2355e28202adc737d353
SHA512

479b4d927c21993a623b6fbaf0c044a0563d70a9d7e588086e7a9c4e0bb07d806b39fc77058f9e505230700f71258f2b62361015b7e2e1e6441131985e7ea158
SSDEEP

1536:UYz/E8hW9NdYAygNlvhIoOl9SAKD7PNch1ZmmImh1ADN8blGe5SagvHLNaV8KJ3t:Um/E8k9ZjpIL+zNch12KbAwSaSCJSp8

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\{9BC23924-E2BE-41A0-A4D3-DAA6583905C4}.catalogItem	svchost.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3372 2080 WerFault.exe fa4a6f5d8a6d50893f37a8dc5b33cf78.exe

pid	pid_target	process	target process
3372	2080	WerFault.exe	fa4a6f5d8a6d50893f37a8dc5b33cf78.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:3416

C:\Users\Admin\AppData\Local\Temp\fa4a6f5d8a6d50893f37a8dc5b33cf78.exe
"C:\Users\Admin\AppData\Local\Temp\fa4a6f5d8a6d50893f37a8dc5b33cf78.exe"
1⤵
PID:2080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 216
2⤵
- Program crash
PID:3372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2080 -ip 2080
1⤵
PID:1608

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

Loading Replay Monitor...

Downloads

memory/2080-0-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download