amadey | 16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c

General

Target

16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe
Size

1.7MB
MD5

9d70e810f650c3449f9c61ff47941c57
SHA1

251bfa2c3b1e99c5f346e759f7cfb7e8b84af5fd
SHA256

16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c
SHA512

82ab71054558f837f6a7104061827a86152c9addaaa682a0300afa5fd22187f60c434d93aa2e90d6a7f6bc298b89667201e1feaf3a5c72aec9f1c7ff5b01e044
SSDEEP

49152:EIY1myiLCGzCLyVSAEt4owekvt+xyHdqT3pK:EB1mnm0CBAEWwQB9qTZK

Score

10^/10

amadey 18befc evasion themida trojan

Malware Config

Extracted

Family

amadey

Version

4.20

Botnet

18befc

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 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

explorku.exe16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe

Executes dropped EXE 1 IoCs

Processes:

explorku.exe

pid process

2084 explorku.exe
Loads dropped DLL 1 IoCs

Processes:

16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

pid process

2316 16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

pid	process
2084	explorku.exe

pid	process
2316	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

Themida packer 19 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2316-0-0x0000000000D60000-0x000000000129F000-memory.dmp	themida
behavioral1/memory/2316-1-0x0000000000D60000-0x000000000129F000-memory.dmp	themida
behavioral1/memory/2316-3-0x0000000000D60000-0x000000000129F000-memory.dmp	themida
behavioral1/memory/2316-2-0x0000000000D60000-0x000000000129F000-memory.dmp	themida
behavioral1/memory/2316-5-0x0000000000D60000-0x000000000129F000-memory.dmp	themida
behavioral1/memory/2316-6-0x0000000000D60000-0x000000000129F000-memory.dmp	themida
behavioral1/memory/2316-4-0x0000000000D60000-0x000000000129F000-memory.dmp	themida
behavioral1/memory/2316-7-0x0000000000D60000-0x000000000129F000-memory.dmp	themida
\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/2084-23-0x0000000000A40000-0x0000000000F7F000-memory.dmp	themida
behavioral1/memory/2084-22-0x0000000000A40000-0x0000000000F7F000-memory.dmp	themida
behavioral1/memory/2084-26-0x0000000000A40000-0x0000000000F7F000-memory.dmp	themida
behavioral1/memory/2084-24-0x0000000000A40000-0x0000000000F7F000-memory.dmp	themida
behavioral1/memory/2084-21-0x0000000000A40000-0x0000000000F7F000-memory.dmp	themida
behavioral1/memory/2084-20-0x0000000000A40000-0x0000000000F7F000-memory.dmp	themida
behavioral1/memory/2084-25-0x0000000000A40000-0x0000000000F7F000-memory.dmp	themida
behavioral1/memory/2316-19-0x0000000000D60000-0x000000000129F000-memory.dmp	themida
behavioral1/memory/2084-27-0x0000000000A40000-0x0000000000F7F000-memory.dmp	themida
behavioral1/memory/2084-29-0x0000000000A40000-0x0000000000F7F000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe

Drops file in Windows directory 1 IoCs

Processes:

16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

description ioc process

File created C:\Windows\Tasks\explorku.job 16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

pid process

2316 16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

pid	process
2316	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe

description	pid	process	target process
PID 2316 wrote to memory of 2084	2316	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe	explorku.exe
PID 2316 wrote to memory of 2084	2316	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe	explorku.exe
PID 2316 wrote to memory of 2084	2316	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe	explorku.exe
PID 2316 wrote to memory of 2084	2316	16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe
"C:\Users\Admin\AppData\Local\Temp\16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2316

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:2084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
Filesize
1.7MB

MD5
9d70e810f650c3449f9c61ff47941c57

SHA1
251bfa2c3b1e99c5f346e759f7cfb7e8b84af5fd

SHA256
16d8b5779b73b471fa2b8044a1ccd29d741400c0da85b2759aec997271c63f0c

SHA512
82ab71054558f837f6a7104061827a86152c9addaaa682a0300afa5fd22187f60c434d93aa2e90d6a7f6bc298b89667201e1feaf3a5c72aec9f1c7ff5b01e044

Download Submit
memory/2084-20-0x0000000000A40000-0x0000000000F7F000-memory.dmp

Filesize
5.2MB

Download
memory/2084-21-0x0000000000A40000-0x0000000000F7F000-memory.dmp

Filesize
5.2MB

Download
memory/2084-23-0x0000000000A40000-0x0000000000F7F000-memory.dmp

Filesize
5.2MB

Download
memory/2084-27-0x0000000000A40000-0x0000000000F7F000-memory.dmp

Filesize
5.2MB

Download
memory/2084-25-0x0000000000A40000-0x0000000000F7F000-memory.dmp

Filesize
5.2MB

Download
memory/2084-24-0x0000000000A40000-0x0000000000F7F000-memory.dmp

Filesize
5.2MB

Download
memory/2084-22-0x0000000000A40000-0x0000000000F7F000-memory.dmp

Filesize
5.2MB

Download
memory/2084-26-0x0000000000A40000-0x0000000000F7F000-memory.dmp

Filesize
5.2MB

Download
memory/2084-29-0x0000000000A40000-0x0000000000F7F000-memory.dmp

Filesize
5.2MB

Download
memory/2316-2-0x0000000000D60000-0x000000000129F000-memory.dmp

Filesize
5.2MB

Download
memory/2316-9-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2316-7-0x0000000000D60000-0x000000000129F000-memory.dmp

Filesize
5.2MB

Download
memory/2316-4-0x0000000000D60000-0x000000000129F000-memory.dmp

Filesize
5.2MB

Download
memory/2316-3-0x0000000000D60000-0x000000000129F000-memory.dmp

Filesize
5.2MB

Download
memory/2316-0-0x0000000000D60000-0x000000000129F000-memory.dmp

Filesize
5.2MB

Download
memory/2316-6-0x0000000000D60000-0x000000000129F000-memory.dmp

Filesize
5.2MB

Download
memory/2316-19-0x0000000000D60000-0x000000000129F000-memory.dmp

Filesize
5.2MB

Download
memory/2316-5-0x0000000000D60000-0x000000000129F000-memory.dmp

Filesize
5.2MB

Download
memory/2316-1-0x0000000000D60000-0x000000000129F000-memory.dmp

Filesize
5.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads