amadey | a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3

General

Target

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe
Size

1.5MB
MD5

3d52bc2279d7b08beedc03af965a7cee
SHA1

a3d18bea62321c56165fee3cf529ce2a49253055
SHA256

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3
SHA512

848ad458513835eb92d3b37512a42e337a3cb16a2241947a0bf726e8128646872bd6e9152a2ec07c25fe444df834318a95c00efa66a1b3ddcce941b24811e8b9
SSDEEP

24576:exMm5TXcZJrV2NdzB/QwaRY3OYNm/zrrFuAhzweIuBTZdt5rVqghvGOXfkIl:exMmdXKJrwowpOemrjNndt5r4ghv1Ma

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.exea4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.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.exea4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.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	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.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:

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

1888 explorku.exe
1796 explorku.exe
3384 explorku.exe

pid	process
1888	explorku.exe
1796	explorku.exe
3384	explorku.exe

Themida packer 36 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3432-0-0x0000000000370000-0x000000000085D000-memory.dmp	themida
behavioral2/memory/3432-1-0x0000000000370000-0x000000000085D000-memory.dmp	themida
behavioral2/memory/3432-3-0x0000000000370000-0x000000000085D000-memory.dmp	themida
behavioral2/memory/3432-6-0x0000000000370000-0x000000000085D000-memory.dmp	themida
behavioral2/memory/3432-7-0x0000000000370000-0x000000000085D000-memory.dmp	themida
behavioral2/memory/3432-5-0x0000000000370000-0x000000000085D000-memory.dmp	themida
behavioral2/memory/3432-4-0x0000000000370000-0x000000000085D000-memory.dmp	themida
behavioral2/memory/3432-2-0x0000000000370000-0x000000000085D000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral2/memory/3432-20-0x0000000000370000-0x000000000085D000-memory.dmp	themida
behavioral2/memory/1888-21-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1888-23-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1888-26-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1888-28-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1888-27-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1888-25-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1888-24-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1888-22-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1888-29-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1796-37-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1796-38-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1796-41-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1796-42-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1796-40-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1796-39-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1796-36-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1796-35-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/1796-44-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/3384-52-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/3384-54-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/3384-53-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/3384-55-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/3384-57-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/3384-56-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/3384-58-0x0000000000130000-0x000000000061D000-memory.dmp	themida
behavioral2/memory/3384-59-0x0000000000130000-0x000000000061D000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.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	explorku.exe

Drops file in Windows directory 1 IoCs

Processes:

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

description ioc process

File created C:\Windows\Tasks\explorku.job a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.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	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

description	pid	process	target process
PID 3432 wrote to memory of 1888	3432	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe	explorku.exe
PID 3432 wrote to memory of 1888	3432	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe	explorku.exe
PID 3432 wrote to memory of 1888	3432	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe
"C:\Users\Admin\AppData\Local\Temp\a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.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:3432

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:1888

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:1796

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:3384

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

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Downloads

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

MD5
3d52bc2279d7b08beedc03af965a7cee

SHA1
a3d18bea62321c56165fee3cf529ce2a49253055

SHA256
a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3

SHA512
848ad458513835eb92d3b37512a42e337a3cb16a2241947a0bf726e8128646872bd6e9152a2ec07c25fe444df834318a95c00efa66a1b3ddcce941b24811e8b9

Download Submit
memory/1796-37-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1796-44-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1796-35-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1796-36-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1796-39-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1796-40-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1796-42-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1796-41-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1796-38-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1888-29-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1888-21-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1888-26-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1888-28-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1888-27-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1888-25-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1888-24-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1888-22-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/1888-23-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/3384-54-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/3384-57-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/3384-59-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/3384-58-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/3384-56-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/3384-55-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/3384-53-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/3384-52-0x0000000000130000-0x000000000061D000-memory.dmp

Filesize
4.9MB

Download
memory/3432-1-0x0000000000370000-0x000000000085D000-memory.dmp

Filesize
4.9MB

Download
memory/3432-3-0x0000000000370000-0x000000000085D000-memory.dmp

Filesize
4.9MB

Download
memory/3432-0-0x0000000000370000-0x000000000085D000-memory.dmp

Filesize
4.9MB

Download
memory/3432-6-0x0000000000370000-0x000000000085D000-memory.dmp

Filesize
4.9MB

Download
memory/3432-7-0x0000000000370000-0x000000000085D000-memory.dmp

Filesize
4.9MB

Download
memory/3432-20-0x0000000000370000-0x000000000085D000-memory.dmp

Filesize
4.9MB

Download
memory/3432-5-0x0000000000370000-0x000000000085D000-memory.dmp

Filesize
4.9MB

Download
memory/3432-4-0x0000000000370000-0x000000000085D000-memory.dmp

Filesize
4.9MB

Download
memory/3432-2-0x0000000000370000-0x000000000085D000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads