arkei | af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c

General

Target

af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe
Size

1.5MB
MD5

571352cab6f177ac071bfb5a1c76b29c
SHA1

524706f5d4ad20c86a0002d58e01714016c8d759
SHA256

af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c
SHA512

7e380e339021a63f7b163830dc0f5f84dd36d18ff6f91a41e4e42a484d04fb1472b5349060aca65fa3a76f892cf2ed79c992e71ef5f828158b072130a3516630

Score

10^/10

arkei default evasion stealer themida trojan

Malware Config

Extracted

Family

arkei

Botnet

Default

C2

http://86.105.252.194/JlAvGw13CF.php

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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:

af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/980-55-0x00000000013B0000-0x00000000017E9000-memory.dmp	themida
behavioral1/memory/980-57-0x00000000013B0000-0x00000000017E9000-memory.dmp	themida
behavioral1/memory/980-58-0x00000000013B0000-0x00000000017E9000-memory.dmp	themida
behavioral1/memory/980-59-0x00000000013B0000-0x00000000017E9000-memory.dmp	themida
behavioral1/memory/980-60-0x00000000013B0000-0x00000000017E9000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe

pid process

980 af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe

pid process

980 af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe

pid	process
980	af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe

pid	process
980	af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe

C:\Users\Admin\AppData\Local\Temp\af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe
"C:\Users\Admin\AppData\Local\Temp\af0d4a19bc18d9002101530069ff92be605f9d2e782c90c3166d156916a75e8c.exe"
1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/980-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

Filesize
8KB

Download
memory/980-56-0x00000000772A0000-0x00000000772A2000-memory.dmp

Filesize
8KB

Download
memory/980-55-0x00000000013B0000-0x00000000017E9000-memory.dmp

Filesize
4.2MB

Download
memory/980-57-0x00000000013B0000-0x00000000017E9000-memory.dmp

Filesize
4.2MB

Download
memory/980-58-0x00000000013B0000-0x00000000017E9000-memory.dmp

Filesize
4.2MB

Download
memory/980-59-0x00000000013B0000-0x00000000017E9000-memory.dmp

Filesize
4.2MB

Download
memory/980-60-0x00000000013B0000-0x00000000017E9000-memory.dmp

Filesize
4.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads