amadey | 81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0

General

Target

81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exe
Size

1.7MB
MD5

87f9e3213ba24a2d1bf116bf1809b0d1
SHA1

9bad8e8e0aa5815b757635bc57f10436c613f828
SHA256

81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0
SHA512

aba6367558b59f9afe8ff3db3b912f11a8a1ec070287af637564c4135e5cd15e385c2be9d9a2db7135542c87214c77fb7002cc39b74bb002068710adad85bb52
SSDEEP

24576:LVh8r8XEPQELU3bEPwTuEYY5h8Hkb5fHbXxd77rytSoPm+YXnCs4jQbmMf/9:JHXP/3bCEjGKtUsoPm+YTUQbRf1

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 7 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.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
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 14 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

explorku.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exe81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.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	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	81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.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\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe

Executes dropped EXE 6 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exe

pid process

2124 explorku.exe
4644 explorku.exe
3240 explorku.exe
2748 explorku.exe
3928 explorku.exe
3220 explorku.exe

pid	process
2124	explorku.exe
4644	explorku.exe
3240	explorku.exe
2748	explorku.exe
3928	explorku.exe
3220	explorku.exe

Themida packer 54 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3012-1-0x0000000001380000-0x00000000018C3000-memory.dmp	themida
behavioral2/memory/3012-6-0x0000000001380000-0x00000000018C3000-memory.dmp	themida
behavioral2/memory/3012-8-0x0000000001380000-0x00000000018C3000-memory.dmp	themida
behavioral2/memory/3012-5-0x0000000001380000-0x00000000018C3000-memory.dmp	themida
behavioral2/memory/3012-7-0x0000000001380000-0x00000000018C3000-memory.dmp	themida
behavioral2/memory/3012-4-0x0000000001380000-0x00000000018C3000-memory.dmp	themida
behavioral2/memory/3012-3-0x0000000001380000-0x00000000018C3000-memory.dmp	themida
behavioral2/memory/3012-2-0x0000000001380000-0x00000000018C3000-memory.dmp	themida
behavioral2/memory/3012-0-0x0000000001380000-0x00000000018C3000-memory.dmp	themida
behavioral2/memory/2124-22-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2124-27-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2124-25-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2124-23-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2124-26-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2124-24-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2124-21-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2124-19-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3012-18-0x0000000001380000-0x00000000018C3000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral2/memory/2124-20-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2124-28-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/4644-30-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/4644-33-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/4644-32-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/4644-36-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/4644-35-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/4644-31-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/4644-34-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/4644-37-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/4644-38-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3240-46-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3240-47-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3240-49-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3240-52-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3240-50-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3240-51-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3240-48-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3240-53-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3240-54-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2748-62-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2748-63-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2748-64-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2748-69-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2748-67-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2748-65-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2748-68-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2748-66-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/2748-71-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3928-80-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3928-82-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3928-81-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3928-79-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3928-87-0x0000000000140000-0x0000000000683000-memory.dmp	themida
behavioral2/memory/3220-103-0x0000000000140000-0x0000000000683000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 7 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.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
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:

81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exe

description ioc process

File created C:\Windows\Tasks\explorku.job 81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.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	81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exe

description	pid	process	target process
PID 3012 wrote to memory of 2124	3012	81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exe	explorku.exe
PID 3012 wrote to memory of 2124	3012	81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exe	explorku.exe
PID 3012 wrote to memory of 2124	3012	81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.exe
"C:\Users\Admin\AppData\Local\Temp\81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0.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:3012

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:2124

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:4644

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:3240

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:2748

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:3928

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:3220

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

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

3

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
87f9e3213ba24a2d1bf116bf1809b0d1

SHA1
9bad8e8e0aa5815b757635bc57f10436c613f828

SHA256
81e6935cbe42a1ddb75406e4c2b34659cc17c43f36f9899f23e9d5066f8348f0

SHA512
aba6367558b59f9afe8ff3db3b912f11a8a1ec070287af637564c4135e5cd15e385c2be9d9a2db7135542c87214c77fb7002cc39b74bb002068710adad85bb52

Download Submit
memory/2124-25-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2124-28-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2124-20-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2124-19-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2124-21-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2124-24-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2124-26-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2124-23-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2124-22-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2124-27-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2748-63-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2748-71-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2748-62-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2748-64-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2748-69-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2748-67-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2748-65-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2748-68-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/2748-66-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3012-7-0x0000000001380000-0x00000000018C3000-memory.dmp

Filesize
5.3MB

Download
memory/3012-6-0x0000000001380000-0x00000000018C3000-memory.dmp

Filesize
5.3MB

Download
memory/3012-8-0x0000000001380000-0x00000000018C3000-memory.dmp

Filesize
5.3MB

Download
memory/3012-5-0x0000000001380000-0x00000000018C3000-memory.dmp

Filesize
5.3MB

Download
memory/3012-18-0x0000000001380000-0x00000000018C3000-memory.dmp

Filesize
5.3MB

Download
memory/3012-0-0x0000000001380000-0x00000000018C3000-memory.dmp

Filesize
5.3MB

Download
memory/3012-4-0x0000000001380000-0x00000000018C3000-memory.dmp

Filesize
5.3MB

Download
memory/3012-3-0x0000000001380000-0x00000000018C3000-memory.dmp

Filesize
5.3MB

Download
memory/3012-1-0x0000000001380000-0x00000000018C3000-memory.dmp

Filesize
5.3MB

Download
memory/3012-2-0x0000000001380000-0x00000000018C3000-memory.dmp

Filesize
5.3MB

Download
memory/3220-103-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3240-49-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3240-54-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3240-52-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3240-50-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3240-51-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3240-48-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3240-53-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3240-47-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3240-46-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3928-87-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3928-79-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3928-80-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3928-81-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/3928-82-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/4644-34-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/4644-32-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/4644-33-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/4644-36-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/4644-35-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/4644-31-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/4644-37-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/4644-38-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download
memory/4644-30-0x0000000000140000-0x0000000000683000-memory.dmp

Filesize
5.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads