amadey | 820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665

General

Target

820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe
Size

1.7MB
MD5

aa3e1f95101948c1ce5e19da21439341
SHA1

24beef8aef26ed325adbb015ca099eb258b653ee
SHA256

820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665
SHA512

4f2c3836d3eb06922f2a1b63a31c5e78d6bb8b5d44a49dd1f3a6b0473e662a716667cd0f231d514f6ac07b8f2cd9d081796e2d8b5fb28c61dfef42225333eded
SSDEEP

49152:ze4BwsyQQyTrhwmpcWKPgA3HuvOG6ExoveVdXf:nBsLQwmGWQivOGHVvv

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:

820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.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.exeexplorku.exe820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.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	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

4244 explorku.exe
2736 explorku.exe
3900 explorku.exe

pid	process
4244	explorku.exe
2736	explorku.exe
3900	explorku.exe

Themida packer 36 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/2316-0-0x0000000000970000-0x0000000000EB9000-memory.dmp	themida
behavioral2/memory/2316-1-0x0000000000970000-0x0000000000EB9000-memory.dmp	themida
behavioral2/memory/2316-2-0x0000000000970000-0x0000000000EB9000-memory.dmp	themida
behavioral2/memory/2316-3-0x0000000000970000-0x0000000000EB9000-memory.dmp	themida
behavioral2/memory/2316-6-0x0000000000970000-0x0000000000EB9000-memory.dmp	themida
behavioral2/memory/2316-5-0x0000000000970000-0x0000000000EB9000-memory.dmp	themida
behavioral2/memory/2316-4-0x0000000000970000-0x0000000000EB9000-memory.dmp	themida
behavioral2/memory/2316-7-0x0000000000970000-0x0000000000EB9000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral2/memory/4244-25-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/4244-26-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/4244-28-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/4244-27-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/4244-24-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/4244-22-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/4244-23-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/4244-21-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/2316-20-0x0000000000970000-0x0000000000EB9000-memory.dmp	themida
behavioral2/memory/4244-29-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/2736-34-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/2736-40-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/2736-38-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/2736-39-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/2736-41-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/2736-37-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/2736-36-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/2736-35-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/2736-43-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/3900-51-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/3900-53-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/3900-55-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/3900-56-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/3900-54-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/3900-52-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/3900-57-0x0000000000420000-0x0000000000969000-memory.dmp	themida
behavioral2/memory/3900-58-0x0000000000420000-0x0000000000969000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

explorku.exeexplorku.exeexplorku.exe820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.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	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe

Drops file in Windows directory 1 IoCs

Processes:

820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe

description ioc process

File created C:\Windows\Tasks\explorku.job 820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.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	820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe

description	pid	process	target process
PID 2316 wrote to memory of 4244	2316	820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe	explorku.exe
PID 2316 wrote to memory of 4244	2316	820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe	explorku.exe
PID 2316 wrote to memory of 4244	2316	820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe
"C:\Users\Admin\AppData\Local\Temp\820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in Windows directory
- 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:4244

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:2736

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:3900

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

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Downloads

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

MD5
aa3e1f95101948c1ce5e19da21439341

SHA1
24beef8aef26ed325adbb015ca099eb258b653ee

SHA256
820fd2159d6b58ad17530eada9b75bf49cac5f38d1e5288bb36bce4df99a7665

SHA512
4f2c3836d3eb06922f2a1b63a31c5e78d6bb8b5d44a49dd1f3a6b0473e662a716667cd0f231d514f6ac07b8f2cd9d081796e2d8b5fb28c61dfef42225333eded

Download Submit
memory/2316-6-0x0000000000970000-0x0000000000EB9000-memory.dmp

Filesize
5.3MB

Download
memory/2316-3-0x0000000000970000-0x0000000000EB9000-memory.dmp

Filesize
5.3MB

Download
memory/2316-0-0x0000000000970000-0x0000000000EB9000-memory.dmp

Filesize
5.3MB

Download
memory/2316-20-0x0000000000970000-0x0000000000EB9000-memory.dmp

Filesize
5.3MB

Download
memory/2316-5-0x0000000000970000-0x0000000000EB9000-memory.dmp

Filesize
5.3MB

Download
memory/2316-4-0x0000000000970000-0x0000000000EB9000-memory.dmp

Filesize
5.3MB

Download
memory/2316-7-0x0000000000970000-0x0000000000EB9000-memory.dmp

Filesize
5.3MB

Download
memory/2316-1-0x0000000000970000-0x0000000000EB9000-memory.dmp

Filesize
5.3MB

Download
memory/2316-2-0x0000000000970000-0x0000000000EB9000-memory.dmp

Filesize
5.3MB

Download
memory/2736-40-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/2736-34-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/2736-43-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/2736-37-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/2736-41-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/2736-39-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/2736-38-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/2736-36-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/2736-35-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/3900-52-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/3900-51-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/3900-53-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/3900-55-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/3900-56-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/3900-54-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/3900-57-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/3900-58-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/4244-25-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/4244-29-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/4244-21-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/4244-23-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/4244-22-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/4244-24-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/4244-27-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/4244-28-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download
memory/4244-26-0x0000000000420000-0x0000000000969000-memory.dmp

Filesize
5.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads