amadey | d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a

General

Target

d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe
Size

1.6MB
MD5

d1a37ef7372a373f76001237039c535f
SHA1

760e42485a4a851fe49c7ece47c2d5066fa45171
SHA256

d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a
SHA512

b16b864fad5308eb52602a7513888e328cd80e6abcdd2849435b0bc341dbd60a51250b204cbd4907c13ffb1fbcd2ea92e729bb8157793f84ed9ecdb9ecd8975d
SSDEEP

24576:pmI6mvtkjMye9YzN1ggdoDN13fDOQLb0ZwN8uuKeq2Li1OvAxLtfvrcqWnc0N:pmYvtkMyeGkga73fqQLaA8tNYd3kcQ

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 4 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

explorku.exeexplorku.exeexplorku.exed0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe

description	ioc	process
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
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.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.exed0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exeexplorku.exe

description	ioc	process
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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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:

d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

1680 explorku.exe
4640 explorku.exe
4876 explorku.exe

pid	process
1680	explorku.exe
4640	explorku.exe
4876	explorku.exe

Themida packer 34 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2404-0-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/2404-2-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/2404-3-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/2404-1-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/2404-4-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/2404-5-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/2404-7-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/2404-6-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/1680-25-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/1680-26-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/1680-27-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/1680-24-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/1680-23-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/1680-21-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/2404-20-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/1680-22-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/1680-28-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4640-38-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4640-37-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4640-36-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4640-39-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4640-34-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4640-35-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4640-33-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4640-41-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4876-51-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4876-55-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4876-54-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4876-52-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4876-49-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4876-53-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4876-50-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida
behavioral1/memory/4876-57-0x00000000005A0000-0x0000000000A9F000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

explorku.exeexplorku.exed0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.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	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe

Drops file in Windows directory 1 IoCs

Processes:

d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe

description ioc process

File created C:\Windows\Tasks\explorku.job d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.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	d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe

description	pid	process	target process
PID 2404 wrote to memory of 1680	2404	d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe	explorku.exe
PID 2404 wrote to memory of 1680	2404	d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe	explorku.exe
PID 2404 wrote to memory of 1680	2404	d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.exe
"C:\Users\Admin\AppData\Local\Temp\d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a.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:2404

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:1680

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:4640

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:4876

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

3

T1012

System Information Discovery

4

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
Filesize
1.6MB

MD5
d1a37ef7372a373f76001237039c535f

SHA1
760e42485a4a851fe49c7ece47c2d5066fa45171

SHA256
d0838f4826577eff799b0850af6eb211009f855d7d739007cdc12aa10b308a5a

SHA512
b16b864fad5308eb52602a7513888e328cd80e6abcdd2849435b0bc341dbd60a51250b204cbd4907c13ffb1fbcd2ea92e729bb8157793f84ed9ecdb9ecd8975d

Download Submit
memory/1680-22-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/1680-25-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/1680-21-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/1680-28-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/1680-23-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/1680-24-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/1680-27-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/1680-26-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/2404-2-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/2404-3-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/2404-6-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/2404-7-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/2404-5-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/2404-1-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/2404-20-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/2404-0-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/2404-4-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4640-34-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4640-41-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4640-36-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4640-39-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4640-38-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4640-35-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4640-33-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4640-37-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4876-51-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4876-55-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4876-54-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4876-52-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4876-49-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4876-53-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4876-50-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download
memory/4876-57-0x00000000005A0000-0x0000000000A9F000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads