amadey | c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332

General

Target

c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe
Size

1.6MB
MD5

97c05214e6105bb765125f14b2c904f0
SHA1

4ad3aaf23969c1efa14d77fb22cb037ec956ebab
SHA256

c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332
SHA512

7c3960845f65dfaafe5d708ea9f6e351f5dd2ddaf774babf97090665720ca2898039865acbc6248519fcf27593494c1e35fea85ce9f562da5d6e017c6ba8abed
SSDEEP

49152:7bQePRi5+Som3Snq/3W3EEjL8/h28y2w1YiU:oep4SqfMEEH8528E1YiU

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:

c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.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:

c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.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

2296 explorku.exe
Loads dropped DLL 1 IoCs

Processes:

c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe

pid process

1724 c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe

pid	process
2296	explorku.exe

pid	process
1724	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe

Themida packer 20 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1724-0-0x0000000000CB0000-0x00000000011E8000-memory.dmp	themida
behavioral1/memory/1724-1-0x0000000000CB0000-0x00000000011E8000-memory.dmp	themida
behavioral1/memory/1724-3-0x0000000000CB0000-0x00000000011E8000-memory.dmp	themida
behavioral1/memory/1724-2-0x0000000000CB0000-0x00000000011E8000-memory.dmp	themida
behavioral1/memory/1724-6-0x0000000000CB0000-0x00000000011E8000-memory.dmp	themida
behavioral1/memory/1724-5-0x0000000000CB0000-0x00000000011E8000-memory.dmp	themida
behavioral1/memory/1724-4-0x0000000000CB0000-0x00000000011E8000-memory.dmp	themida
behavioral1/memory/1724-7-0x0000000000CB0000-0x00000000011E8000-memory.dmp	themida
\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/1724-17-0x0000000004B90000-0x00000000050C8000-memory.dmp	themida
behavioral1/memory/1724-20-0x0000000000CB0000-0x00000000011E8000-memory.dmp	themida
behavioral1/memory/2296-22-0x0000000000140000-0x0000000000678000-memory.dmp	themida
behavioral1/memory/2296-24-0x0000000000140000-0x0000000000678000-memory.dmp	themida
behavioral1/memory/2296-28-0x0000000000140000-0x0000000000678000-memory.dmp	themida
behavioral1/memory/2296-27-0x0000000000140000-0x0000000000678000-memory.dmp	themida
behavioral1/memory/2296-25-0x0000000000140000-0x0000000000678000-memory.dmp	themida
behavioral1/memory/2296-26-0x0000000000140000-0x0000000000678000-memory.dmp	themida
behavioral1/memory/2296-23-0x0000000000140000-0x0000000000678000-memory.dmp	themida
behavioral1/memory/2296-21-0x0000000000140000-0x0000000000678000-memory.dmp	themida
behavioral1/memory/2296-30-0x0000000000140000-0x0000000000678000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe

Drops file in Windows directory 1 IoCs

Processes:

c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe

description ioc process

File created C:\Windows\Tasks\explorku.job c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.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:

c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe

pid process

1724 c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe

pid	process
1724	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe

description	pid	process	target process
PID 1724 wrote to memory of 2296	1724	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe	explorku.exe
PID 1724 wrote to memory of 2296	1724	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe	explorku.exe
PID 1724 wrote to memory of 2296	1724	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe	explorku.exe
PID 1724 wrote to memory of 2296	1724	c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.exe
"C:\Users\Admin\AppData\Local\Temp\c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332.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:1724

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:2296

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

\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
Filesize
1.6MB

MD5
97c05214e6105bb765125f14b2c904f0

SHA1
4ad3aaf23969c1efa14d77fb22cb037ec956ebab

SHA256
c22d167bf7d2d759794634e428006049754be141e56bec5db3a05a75d1917332

SHA512
7c3960845f65dfaafe5d708ea9f6e351f5dd2ddaf774babf97090665720ca2898039865acbc6248519fcf27593494c1e35fea85ce9f562da5d6e017c6ba8abed

Download Submit
memory/1724-17-0x0000000004B90000-0x00000000050C8000-memory.dmp

Filesize
5.2MB

Download
memory/1724-0-0x0000000000CB0000-0x00000000011E8000-memory.dmp

Filesize
5.2MB

Download
memory/1724-2-0x0000000000CB0000-0x00000000011E8000-memory.dmp

Filesize
5.2MB

Download
memory/1724-6-0x0000000000CB0000-0x00000000011E8000-memory.dmp

Filesize
5.2MB

Download
memory/1724-5-0x0000000000CB0000-0x00000000011E8000-memory.dmp

Filesize
5.2MB

Download
memory/1724-4-0x0000000000CB0000-0x00000000011E8000-memory.dmp

Filesize
5.2MB

Download
memory/1724-7-0x0000000000CB0000-0x00000000011E8000-memory.dmp

Filesize
5.2MB

Download
memory/1724-20-0x0000000000CB0000-0x00000000011E8000-memory.dmp

Filesize
5.2MB

Download
memory/1724-1-0x0000000000CB0000-0x00000000011E8000-memory.dmp

Filesize
5.2MB

Download
memory/1724-3-0x0000000000CB0000-0x00000000011E8000-memory.dmp

Filesize
5.2MB

Download
memory/1724-9-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/2296-23-0x0000000000140000-0x0000000000678000-memory.dmp

Filesize
5.2MB

Download
memory/2296-24-0x0000000000140000-0x0000000000678000-memory.dmp

Filesize
5.2MB

Download
memory/2296-28-0x0000000000140000-0x0000000000678000-memory.dmp

Filesize
5.2MB

Download
memory/2296-27-0x0000000000140000-0x0000000000678000-memory.dmp

Filesize
5.2MB

Download
memory/2296-25-0x0000000000140000-0x0000000000678000-memory.dmp

Filesize
5.2MB

Download
memory/2296-26-0x0000000000140000-0x0000000000678000-memory.dmp

Filesize
5.2MB

Download
memory/2296-22-0x0000000000140000-0x0000000000678000-memory.dmp

Filesize
5.2MB

Download
memory/2296-21-0x0000000000140000-0x0000000000678000-memory.dmp

Filesize
5.2MB

Download
memory/2296-30-0x0000000000140000-0x0000000000678000-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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