amadey | 7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60

General

Target

7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exe
Size

1.7MB
MD5

558f79e0fee42f7bbba6041cdca0a879
SHA1

86a57912e7d62e07e5281c1aeb900d08775c63c1
SHA256

7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60
SHA512

0497bbcb900630713c89236beee0919c080fddeffed3c5a5a5bc14b242a0d0a5b631a8b56b6a96df2d541a6ec4c07d767f970169fed1edc99dee33e6f73793a6
SSDEEP

49152:5UTNaUJAB9LJVlJSOkrjsfdC59HV9k1DLwNjrFi:5UTEg+zO4CvHV61DL6M

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.exeexplorku.exe7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exeexplorku.exe

description	ioc	process
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__	7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.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.exe7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exeexplorku.exeexplorku.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	7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.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

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

3836 explorku.exe
4236 explorku.exe
4452 explorku.exe

pid	process
3836	explorku.exe
4236	explorku.exe
4452	explorku.exe

Themida packer 40 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/4540-0-0x0000000000E50000-0x0000000001395000-memory.dmp	themida
behavioral2/memory/4540-1-0x0000000000E50000-0x0000000001395000-memory.dmp	themida
behavioral2/memory/4540-2-0x0000000000E50000-0x0000000001395000-memory.dmp	themida
behavioral2/memory/4540-3-0x0000000000E50000-0x0000000001395000-memory.dmp	themida
behavioral2/memory/4540-6-0x0000000000E50000-0x0000000001395000-memory.dmp	themida
behavioral2/memory/4540-8-0x0000000000E50000-0x0000000001395000-memory.dmp	themida
behavioral2/memory/4540-7-0x0000000000E50000-0x0000000001395000-memory.dmp	themida
behavioral2/memory/4540-5-0x0000000000E50000-0x0000000001395000-memory.dmp	themida
behavioral2/memory/4540-4-0x0000000000E50000-0x0000000001395000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral2/memory/4540-21-0x0000000000E50000-0x0000000001395000-memory.dmp	themida
behavioral2/memory/3836-28-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/3836-29-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/3836-26-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/3836-25-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/3836-23-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/3836-27-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/3836-24-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/3836-22-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/3836-30-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/3836-31-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4236-36-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4236-39-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4236-41-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4236-44-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4236-43-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4236-42-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4236-38-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4236-40-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4236-45-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4236-47-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4452-58-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4452-59-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4452-61-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4452-60-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4452-57-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4452-55-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4452-56-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4452-62-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida
behavioral2/memory/4452-64-0x0000000000AC0000-0x0000000001005000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

explorku.exe7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.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	7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.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:

7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exe

description ioc process

File created C:\Windows\Tasks\explorku.job 7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.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	7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exe

description	pid	process	target process
PID 4540 wrote to memory of 3836	4540	7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exe	explorku.exe
PID 4540 wrote to memory of 3836	4540	7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exe	explorku.exe
PID 4540 wrote to memory of 3836	4540	7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.exe
"C:\Users\Admin\AppData\Local\Temp\7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60.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:4540

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:3836

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:4236

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:4452

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

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Downloads

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

MD5
558f79e0fee42f7bbba6041cdca0a879

SHA1
86a57912e7d62e07e5281c1aeb900d08775c63c1

SHA256
7bcb6c91621a4a3484d0d305b5c4791fef8bd5af656da440d2c48671d2dbab60

SHA512
0497bbcb900630713c89236beee0919c080fddeffed3c5a5a5bc14b242a0d0a5b631a8b56b6a96df2d541a6ec4c07d767f970169fed1edc99dee33e6f73793a6

Download Submit
memory/3836-28-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/3836-31-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/3836-30-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/3836-22-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/3836-24-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/3836-27-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/3836-23-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/3836-25-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/3836-26-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/3836-29-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4236-47-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4236-36-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4236-45-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4236-40-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4236-38-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4236-42-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4236-43-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4236-44-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4236-41-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4236-39-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4452-61-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4452-58-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4452-64-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4452-62-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4452-56-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4452-55-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4452-57-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4452-60-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4452-59-0x0000000000AC0000-0x0000000001005000-memory.dmp

Filesize
5.3MB

Download
memory/4540-8-0x0000000000E50000-0x0000000001395000-memory.dmp

Filesize
5.3MB

Download
memory/4540-0-0x0000000000E50000-0x0000000001395000-memory.dmp

Filesize
5.3MB

Download
memory/4540-4-0x0000000000E50000-0x0000000001395000-memory.dmp

Filesize
5.3MB

Download
memory/4540-21-0x0000000000E50000-0x0000000001395000-memory.dmp

Filesize
5.3MB

Download
memory/4540-5-0x0000000000E50000-0x0000000001395000-memory.dmp

Filesize
5.3MB

Download
memory/4540-7-0x0000000000E50000-0x0000000001395000-memory.dmp

Filesize
5.3MB

Download
memory/4540-1-0x0000000000E50000-0x0000000001395000-memory.dmp

Filesize
5.3MB

Download
memory/4540-6-0x0000000000E50000-0x0000000001395000-memory.dmp

Filesize
5.3MB

Download
memory/4540-3-0x0000000000E50000-0x0000000001395000-memory.dmp

Filesize
5.3MB

Download
memory/4540-2-0x0000000000E50000-0x0000000001395000-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