amadey | fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3

Analysis

max time kernel
143s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
15-05-2024 03:10

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General

Target

fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe
Size

1.7MB
MD5

eee78c7a48b5de33d2253e4874c57e89
SHA1

9ac2bf925546e623b4453232b96de8e40c992c2c
SHA256

fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3
SHA512

b60a25acf513de45e6d0f60d01902cba93afad39adaecab8fbd38cea0cac2cfc866f1179a135186e2df5d496afbea3ee2cfe5f9d3ba1584e083c1c9d41074916
SSDEEP

49152:cY3amfNQFSoZ/yf6RJB8ImDuFsxg5QQU+Q5s:cijNoSoRyf+JB8HD2szgQ+

Score

10^/10

amadey evasion themida trojan

Malware Config

Extracted

Family

amadey

Version

4.20

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 5 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.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
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe

Checks BIOS information in registry 2 TTPs 10 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

explorku.exeexplorku.exeexplorku.exeexplorku.exefb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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\SystemBiosVersion	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	fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.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:

fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe

Executes dropped EXE 4 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exeexplorku.exe

pid process

4984 explorku.exe
3464 explorku.exe
4416 explorku.exe
4660 explorku.exe

pid	process
4984	explorku.exe
3464	explorku.exe
4416	explorku.exe
4660	explorku.exe

Themida packer 45 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1644-0-0x0000000000050000-0x000000000059D000-memory.dmp	themida
behavioral1/memory/1644-2-0x0000000000050000-0x000000000059D000-memory.dmp	themida
behavioral1/memory/1644-1-0x0000000000050000-0x000000000059D000-memory.dmp	themida
behavioral1/memory/1644-6-0x0000000000050000-0x000000000059D000-memory.dmp	themida
behavioral1/memory/1644-7-0x0000000000050000-0x000000000059D000-memory.dmp	themida
behavioral1/memory/1644-5-0x0000000000050000-0x000000000059D000-memory.dmp	themida
behavioral1/memory/1644-3-0x0000000000050000-0x000000000059D000-memory.dmp	themida
behavioral1/memory/1644-4-0x0000000000050000-0x000000000059D000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/4984-23-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4984-25-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4984-28-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4984-27-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4984-26-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4984-22-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4984-21-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/1644-20-0x0000000000050000-0x000000000059D000-memory.dmp	themida
behavioral1/memory/4984-24-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/3464-30-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/3464-35-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/3464-37-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/3464-36-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/3464-34-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/3464-32-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/3464-33-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/3464-31-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/3464-39-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4984-40-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4416-47-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4416-52-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4416-53-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4416-51-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4416-50-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4416-48-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4416-54-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4416-56-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4660-64-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4660-67-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4660-66-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4660-65-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4660-69-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4660-71-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4660-70-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4660-68-0x0000000000140000-0x000000000068D000-memory.dmp	themida
behavioral1/memory/4660-72-0x0000000000140000-0x000000000068D000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 5 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

explorku.exeexplorku.exefb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exeexplorku.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	fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.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:

fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe

description ioc process

File created C:\Windows\Tasks\explorku.job fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.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	fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe

description	pid	process	target process
PID 1644 wrote to memory of 4984	1644	fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe	explorku.exe
PID 1644 wrote to memory of 4984	1644	fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe	explorku.exe
PID 1644 wrote to memory of 4984	1644	fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.exe
"C:\Users\Admin\AppData\Local\Temp\fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3.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:1644

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:4984

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:3464

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:4416

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:4660

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

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

MD5
eee78c7a48b5de33d2253e4874c57e89

SHA1
9ac2bf925546e623b4453232b96de8e40c992c2c

SHA256
fb5d4c4bdf0345dc729d6799d7a44ab42bf43f7461b96c8c804a265e2c706ae3

SHA512
b60a25acf513de45e6d0f60d01902cba93afad39adaecab8fbd38cea0cac2cfc866f1179a135186e2df5d496afbea3ee2cfe5f9d3ba1584e083c1c9d41074916

Download Submit
memory/1644-7-0x0000000000050000-0x000000000059D000-memory.dmp

Filesize
5.3MB

Download
memory/1644-6-0x0000000000050000-0x000000000059D000-memory.dmp

Filesize
5.3MB

Download
memory/1644-0-0x0000000000050000-0x000000000059D000-memory.dmp

Filesize
5.3MB

Download
memory/1644-20-0x0000000000050000-0x000000000059D000-memory.dmp

Filesize
5.3MB

Download
memory/1644-5-0x0000000000050000-0x000000000059D000-memory.dmp

Filesize
5.3MB

Download
memory/1644-3-0x0000000000050000-0x000000000059D000-memory.dmp

Filesize
5.3MB

Download
memory/1644-4-0x0000000000050000-0x000000000059D000-memory.dmp

Filesize
5.3MB

Download
memory/1644-2-0x0000000000050000-0x000000000059D000-memory.dmp

Filesize
5.3MB

Download
memory/1644-1-0x0000000000050000-0x000000000059D000-memory.dmp

Filesize
5.3MB

Download
memory/3464-30-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/3464-35-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/3464-33-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/3464-32-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/3464-34-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/3464-36-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/3464-31-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/3464-37-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/3464-39-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4416-48-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4416-47-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4416-56-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4416-54-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4416-50-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4416-51-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4416-53-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4416-52-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4660-66-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4660-69-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4660-72-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4660-68-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4660-70-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4660-71-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4660-65-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4660-67-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4660-64-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4984-21-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4984-22-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4984-24-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4984-23-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4984-40-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4984-26-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4984-27-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4984-28-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download
memory/4984-25-0x0000000000140000-0x000000000068D000-memory.dmp

Filesize
5.3MB

Download