amadey | a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948

General

Target

a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe
Size

1.5MB
MD5

32187c18a470b54095365f8db359a671
SHA1

3ce7f687006e176a5b1554e30decdfed60e35aae
SHA256

a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948
SHA512

a9873b6ac3f480ad881bee4fe52d960127696f816007ee1ed4a2511ff82f7cc10ec98ef16cdc2869b49b716d3453ee6a7d952a1988083d046ba05dd9d579449a
SSDEEP

24576:92vbP2LX8eT+onZIeV1B/0ZGP5Ulz9xw0i0sx9rNqdy5/rwjXUx68BFrgPUv:9kyweTrZIQ8o2z9ST089BqurwLI7vMcv

Score

10^/10

amadey evasion themida trojan

Malware Config

Extracted

Family

amadey

Version

4.20

C2

http://5.42.96.141

Attributes

install_dir
908f070dff
install_file
explorku.exe
strings_key
b25a9385246248a95c600f9a061438e1
url_paths
/go34ko8/index.php

rc4.plain

Signatures

Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
trojan amadey

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe

Checks BIOS information in registry 2 TTPs 8 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

explorku.exeexplorku.exea3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

2608 explorku.exe
4632 explorku.exe
4792 explorku.exe

pid	process
2608	explorku.exe
4632	explorku.exe
4792	explorku.exe

Themida packer 39 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/4000-0-0x0000000000620000-0x0000000000B0C000-memory.dmp	themida
behavioral1/memory/4000-1-0x0000000000620000-0x0000000000B0C000-memory.dmp	themida
behavioral1/memory/4000-3-0x0000000000620000-0x0000000000B0C000-memory.dmp	themida
behavioral1/memory/4000-8-0x0000000000620000-0x0000000000B0C000-memory.dmp	themida
behavioral1/memory/4000-7-0x0000000000620000-0x0000000000B0C000-memory.dmp	themida
behavioral1/memory/4000-5-0x0000000000620000-0x0000000000B0C000-memory.dmp	themida
behavioral1/memory/4000-4-0x0000000000620000-0x0000000000B0C000-memory.dmp	themida
behavioral1/memory/4000-6-0x0000000000620000-0x0000000000B0C000-memory.dmp	themida
behavioral1/memory/4000-2-0x0000000000620000-0x0000000000B0C000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/2608-21-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4000-20-0x0000000000620000-0x0000000000B0C000-memory.dmp	themida
behavioral1/memory/2608-23-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/2608-27-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/2608-30-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/2608-28-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/2608-29-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/2608-26-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/2608-25-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/2608-24-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/2608-31-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4632-36-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4632-38-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4632-42-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4632-41-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4632-40-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4632-39-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4632-37-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4632-43-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4632-45-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4792-53-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4792-55-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4792-59-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4792-60-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4792-58-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4792-57-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4792-56-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4792-54-0x00000000002B0000-0x000000000079C000-memory.dmp	themida
behavioral1/memory/4792-62-0x00000000002B0000-0x000000000079C000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

explorku.exea3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe

Drops file in Windows directory 1 IoCs

Processes:

a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe

description ioc process

File created C:\Windows\Tasks\explorku.job a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe

description	pid	process	target process
PID 4000 wrote to memory of 2608	4000	a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe	explorku.exe
PID 4000 wrote to memory of 2608	4000	a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe	explorku.exe
PID 4000 wrote to memory of 2608	4000	a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe
"C:\Users\Admin\AppData\Local\Temp\a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4000

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:2608

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:4632

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:4792

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

3

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

4

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
Filesize
1.5MB

MD5
32187c18a470b54095365f8db359a671

SHA1
3ce7f687006e176a5b1554e30decdfed60e35aae

SHA256
a3ad43bf945a9448fbeeb1ce1a9eeb86910dd98c25600eb2eea37c665c90f948

SHA512
a9873b6ac3f480ad881bee4fe52d960127696f816007ee1ed4a2511ff82f7cc10ec98ef16cdc2869b49b716d3453ee6a7d952a1988083d046ba05dd9d579449a

Download Submit
memory/2608-25-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/2608-30-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/2608-31-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/2608-26-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/2608-29-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/2608-28-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/2608-27-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/2608-23-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/2608-24-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/2608-21-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4000-20-0x0000000000620000-0x0000000000B0C000-memory.dmp

Filesize
4.9MB

Download
memory/4000-2-0x0000000000620000-0x0000000000B0C000-memory.dmp

Filesize
4.9MB

Download
memory/4000-6-0x0000000000620000-0x0000000000B0C000-memory.dmp

Filesize
4.9MB

Download
memory/4000-3-0x0000000000620000-0x0000000000B0C000-memory.dmp

Filesize
4.9MB

Download
memory/4000-4-0x0000000000620000-0x0000000000B0C000-memory.dmp

Filesize
4.9MB

Download
memory/4000-5-0x0000000000620000-0x0000000000B0C000-memory.dmp

Filesize
4.9MB

Download
memory/4000-7-0x0000000000620000-0x0000000000B0C000-memory.dmp

Filesize
4.9MB

Download
memory/4000-0-0x0000000000620000-0x0000000000B0C000-memory.dmp

Filesize
4.9MB

Download
memory/4000-1-0x0000000000620000-0x0000000000B0C000-memory.dmp

Filesize
4.9MB

Download
memory/4000-8-0x0000000000620000-0x0000000000B0C000-memory.dmp

Filesize
4.9MB

Download
memory/4632-45-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4632-38-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4632-42-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4632-41-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4632-40-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4632-36-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4632-37-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4632-43-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4632-39-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4792-53-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4792-55-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4792-59-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4792-60-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4792-58-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4792-57-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4792-56-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4792-54-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download
memory/4792-62-0x00000000002B0000-0x000000000079C000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads