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 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

explorku.exea4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.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:

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exeexplorku.exe

description	ioc	process
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

Executes dropped EXE 1 IoCs

Processes:

explorku.exe

pid process

2684 explorku.exe
Loads dropped DLL 1 IoCs

Processes:

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

pid process

1964 a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

pid	process
2684	explorku.exe

pid	process
1964	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

Themida packer 21 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1964-0-0x0000000000960000-0x0000000000E4D000-memory.dmp	themida
behavioral1/memory/1964-2-0x0000000000960000-0x0000000000E4D000-memory.dmp	themida
behavioral1/memory/1964-1-0x0000000000960000-0x0000000000E4D000-memory.dmp	themida
behavioral1/memory/1964-3-0x0000000000960000-0x0000000000E4D000-memory.dmp	themida
behavioral1/memory/1964-6-0x0000000000960000-0x0000000000E4D000-memory.dmp	themida
behavioral1/memory/1964-7-0x0000000000960000-0x0000000000E4D000-memory.dmp	themida
behavioral1/memory/1964-5-0x0000000000960000-0x0000000000E4D000-memory.dmp	themida
behavioral1/memory/1964-4-0x0000000000960000-0x0000000000E4D000-memory.dmp	themida
\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/2684-22-0x0000000000A20000-0x0000000000F0D000-memory.dmp	themida
behavioral1/memory/2684-27-0x0000000000A20000-0x0000000000F0D000-memory.dmp	themida
behavioral1/memory/2684-26-0x0000000000A20000-0x0000000000F0D000-memory.dmp	themida
behavioral1/memory/2684-25-0x0000000000A20000-0x0000000000F0D000-memory.dmp	themida
behavioral1/memory/2684-24-0x0000000000A20000-0x0000000000F0D000-memory.dmp	themida
behavioral1/memory/2684-21-0x0000000000A20000-0x0000000000F0D000-memory.dmp	themida
behavioral1/memory/1964-20-0x0000000004B60000-0x000000000504D000-memory.dmp	themida
behavioral1/memory/2684-23-0x0000000000A20000-0x0000000000F0D000-memory.dmp	themida
behavioral1/memory/1964-19-0x0000000000960000-0x0000000000E4D000-memory.dmp	themida
behavioral1/memory/2684-28-0x0000000000A20000-0x0000000000F0D000-memory.dmp	themida
behavioral1/memory/2684-30-0x0000000000A20000-0x0000000000F0D000-memory.dmp	themida
behavioral1/memory/1964-32-0x0000000004B60000-0x000000000504D000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.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

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
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

pid process

1964 a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

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

pid	process
1964	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe

description	pid	process	target process
PID 1964 wrote to memory of 2684	1964	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe	explorku.exe
PID 1964 wrote to memory of 2684	1964	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe	explorku.exe
PID 1964 wrote to memory of 2684	1964	a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3.exe	explorku.exe
PID 1964 wrote to memory of 2684	1964	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
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1964

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:2684

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

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

MD5
3d52bc2279d7b08beedc03af965a7cee

SHA1
a3d18bea62321c56165fee3cf529ce2a49253055

SHA256
a4ac024ca09808c144ef56c10d6009f4ab2225fccf819e050862d7ff776cc8e3

SHA512
848ad458513835eb92d3b37512a42e337a3cb16a2241947a0bf726e8128646872bd6e9152a2ec07c25fe444df834318a95c00efa66a1b3ddcce941b24811e8b9

Download Submit
memory/1964-3-0x0000000000960000-0x0000000000E4D000-memory.dmp

Filesize
4.9MB

Download
memory/1964-1-0x0000000000960000-0x0000000000E4D000-memory.dmp

Filesize
4.9MB

Download
memory/1964-20-0x0000000004B60000-0x000000000504D000-memory.dmp

Filesize
4.9MB

Download
memory/1964-6-0x0000000000960000-0x0000000000E4D000-memory.dmp

Filesize
4.9MB

Download
memory/1964-7-0x0000000000960000-0x0000000000E4D000-memory.dmp

Filesize
4.9MB

Download
memory/1964-5-0x0000000000960000-0x0000000000E4D000-memory.dmp

Filesize
4.9MB

Download
memory/1964-4-0x0000000000960000-0x0000000000E4D000-memory.dmp

Filesize
4.9MB

Download
memory/1964-9-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/1964-2-0x0000000000960000-0x0000000000E4D000-memory.dmp

Filesize
4.9MB

Download
memory/1964-0-0x0000000000960000-0x0000000000E4D000-memory.dmp

Filesize
4.9MB

Download
memory/1964-32-0x0000000004B60000-0x000000000504D000-memory.dmp

Filesize
4.9MB

Download
memory/1964-19-0x0000000000960000-0x0000000000E4D000-memory.dmp

Filesize
4.9MB

Download
memory/2684-22-0x0000000000A20000-0x0000000000F0D000-memory.dmp

Filesize
4.9MB

Download
memory/2684-24-0x0000000000A20000-0x0000000000F0D000-memory.dmp

Filesize
4.9MB

Download
memory/2684-21-0x0000000000A20000-0x0000000000F0D000-memory.dmp

Filesize
4.9MB

Download
memory/2684-25-0x0000000000A20000-0x0000000000F0D000-memory.dmp

Filesize
4.9MB

Download
memory/2684-23-0x0000000000A20000-0x0000000000F0D000-memory.dmp

Filesize
4.9MB

Download
memory/2684-26-0x0000000000A20000-0x0000000000F0D000-memory.dmp

Filesize
4.9MB

Download
memory/2684-28-0x0000000000A20000-0x0000000000F0D000-memory.dmp

Filesize
4.9MB

Download
memory/2684-30-0x0000000000A20000-0x0000000000F0D000-memory.dmp

Filesize
4.9MB

Download
memory/2684-27-0x0000000000A20000-0x0000000000F0D000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads