amadey | b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a

General

Target

b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe
Size

1.7MB
MD5

ca226a939109f9882cf09849f733ded2
SHA1

45a5f092aae22e6baf2463d0b567a0a5f579affc
SHA256

b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a
SHA512

57cd0c3bea06ac834acb6c52c664eb67e3cd658152bb46a9d3429bab2de663855649f3731e613fc34a4f9b38bc4065a4793aa646e3aa1feb337a407f9f84688b
SSDEEP

49152:Pt4pYdHetf7U+bAjYsEnLinrtUOnOTcFvMkX:V4p+eq+U8sEnLsdnOPkX

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:

b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.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.exeb8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe

description	ioc	process
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	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.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:

b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

4868 explorku.exe
5096 explorku.exe
1828 explorku.exe

pid	process
4868	explorku.exe
5096	explorku.exe
1828	explorku.exe

Themida packer 36 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2864-1-0x0000000000600000-0x0000000000B3F000-memory.dmp	themida
behavioral1/memory/2864-0-0x0000000000600000-0x0000000000B3F000-memory.dmp	themida
behavioral1/memory/2864-2-0x0000000000600000-0x0000000000B3F000-memory.dmp	themida
behavioral1/memory/2864-5-0x0000000000600000-0x0000000000B3F000-memory.dmp	themida
behavioral1/memory/2864-7-0x0000000000600000-0x0000000000B3F000-memory.dmp	themida
behavioral1/memory/2864-6-0x0000000000600000-0x0000000000B3F000-memory.dmp	themida
behavioral1/memory/2864-4-0x0000000000600000-0x0000000000B3F000-memory.dmp	themida
behavioral1/memory/2864-3-0x0000000000600000-0x0000000000B3F000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/4868-21-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/4868-23-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/4868-27-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/4868-28-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/4868-26-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/4868-25-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/4868-24-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/4868-22-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/2864-20-0x0000000000600000-0x0000000000B3F000-memory.dmp	themida
behavioral1/memory/4868-29-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/5096-33-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/5096-34-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/5096-35-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/5096-38-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/5096-40-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/5096-39-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/5096-37-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/5096-36-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/5096-41-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/1828-49-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/1828-53-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/1828-54-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/1828-55-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/1828-52-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/1828-51-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/1828-56-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida
behavioral1/memory/1828-57-0x00000000006C0000-0x0000000000BFF000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.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:

b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe

description ioc process

File created C:\Windows\Tasks\explorku.job b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.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:

b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe

pid process

2864 b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe

pid	process
2864	b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe

description	pid	process	target process
PID 2864 wrote to memory of 4868	2864	b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe	explorku.exe
PID 2864 wrote to memory of 4868	2864	b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe	explorku.exe
PID 2864 wrote to memory of 4868	2864	b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.exe
"C:\Users\Admin\AppData\Local\Temp\b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a.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 FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2864

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:4868

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:5096

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:1828

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
1.7MB

MD5
ca226a939109f9882cf09849f733ded2

SHA1
45a5f092aae22e6baf2463d0b567a0a5f579affc

SHA256
b8c035878ed34625ed731e140b30250ec59859027aee7883126d202ff9caea7a

SHA512
57cd0c3bea06ac834acb6c52c664eb67e3cd658152bb46a9d3429bab2de663855649f3731e613fc34a4f9b38bc4065a4793aa646e3aa1feb337a407f9f84688b

Download Submit
memory/1828-52-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/1828-55-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/1828-57-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/1828-49-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/1828-56-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/1828-53-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/1828-54-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/1828-51-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/2864-4-0x0000000000600000-0x0000000000B3F000-memory.dmp

Filesize
5.2MB

Download
memory/2864-6-0x0000000000600000-0x0000000000B3F000-memory.dmp

Filesize
5.2MB

Download
memory/2864-0-0x0000000000600000-0x0000000000B3F000-memory.dmp

Filesize
5.2MB

Download
memory/2864-1-0x0000000000600000-0x0000000000B3F000-memory.dmp

Filesize
5.2MB

Download
memory/2864-5-0x0000000000600000-0x0000000000B3F000-memory.dmp

Filesize
5.2MB

Download
memory/2864-3-0x0000000000600000-0x0000000000B3F000-memory.dmp

Filesize
5.2MB

Download
memory/2864-2-0x0000000000600000-0x0000000000B3F000-memory.dmp

Filesize
5.2MB

Download
memory/2864-7-0x0000000000600000-0x0000000000B3F000-memory.dmp

Filesize
5.2MB

Download
memory/2864-20-0x0000000000600000-0x0000000000B3F000-memory.dmp

Filesize
5.2MB

Download
memory/4868-29-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/4868-22-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/4868-21-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/4868-23-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/4868-27-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/4868-28-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/4868-26-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/4868-25-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/4868-24-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/5096-40-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/5096-41-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/5096-36-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/5096-37-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/5096-39-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/5096-33-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/5096-38-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/5096-35-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download
memory/5096-34-0x00000000006C0000-0x0000000000BFF000-memory.dmp

Filesize
5.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads