amadey | 49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e

General

Target

49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe
Size

1.6MB
MD5

18b01b395414f9e1108aa08e0c12fc21
SHA1

b96c252cfff68e7a8af09b02770b44010584eb78
SHA256

49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e
SHA512

61a7855cc9cb9ecba8435d9c73d676ccbc6d3fb828c7b73fd7c696bf0d06f7fc8fe64188d54d87ffb35b16393b39ecf1f85596c811eb717e4b49aae8fbae0963
SSDEEP

49152:XlErwK1a3W4u1+ZA/WbBPlB8huaDa2nv+4PEknY:SrwKo3lu+yujIuaDaYPP3Y

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

Detects executables packed with Themida 21 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2148-0-0x0000000000B50000-0x0000000001082000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2148-1-0x0000000000B50000-0x0000000001082000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2148-2-0x0000000000B50000-0x0000000001082000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2148-3-0x0000000000B50000-0x0000000001082000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2148-6-0x0000000000B50000-0x0000000001082000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2148-7-0x0000000000B50000-0x0000000001082000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2148-8-0x0000000000B50000-0x0000000001082000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2148-5-0x0000000000B50000-0x0000000001082000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2148-4-0x0000000000B50000-0x0000000001082000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2852-24-0x00000000013D0000-0x0000000001902000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2852-25-0x00000000013D0000-0x0000000001902000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2852-30-0x00000000013D0000-0x0000000001902000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2852-29-0x00000000013D0000-0x0000000001902000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2852-28-0x00000000013D0000-0x0000000001902000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2852-26-0x00000000013D0000-0x0000000001902000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2852-27-0x00000000013D0000-0x0000000001902000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2852-23-0x00000000013D0000-0x0000000001902000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2852-22-0x00000000013D0000-0x0000000001902000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2148-20-0x0000000000B50000-0x0000000001082000-memory.dmp	INDICATOR_EXE_Packed_Themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2852-32-0x00000000013D0000-0x0000000001902000-memory.dmp	INDICATOR_EXE_Packed_Themida

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.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:

explorku.exe49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe

Executes dropped EXE 1 IoCs

Processes:

explorku.exe

pid process

2852 explorku.exe
Loads dropped DLL 1 IoCs

Processes:

49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

pid process

2148 49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

pid	process
2852	explorku.exe

pid	process
2148	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

Themida packer 21 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2148-0-0x0000000000B50000-0x0000000001082000-memory.dmp	themida
behavioral1/memory/2148-1-0x0000000000B50000-0x0000000001082000-memory.dmp	themida
behavioral1/memory/2148-2-0x0000000000B50000-0x0000000001082000-memory.dmp	themida
behavioral1/memory/2148-3-0x0000000000B50000-0x0000000001082000-memory.dmp	themida
behavioral1/memory/2148-6-0x0000000000B50000-0x0000000001082000-memory.dmp	themida
behavioral1/memory/2148-7-0x0000000000B50000-0x0000000001082000-memory.dmp	themida
behavioral1/memory/2148-8-0x0000000000B50000-0x0000000001082000-memory.dmp	themida
behavioral1/memory/2148-5-0x0000000000B50000-0x0000000001082000-memory.dmp	themida
behavioral1/memory/2148-4-0x0000000000B50000-0x0000000001082000-memory.dmp	themida
behavioral1/memory/2852-24-0x00000000013D0000-0x0000000001902000-memory.dmp	themida
behavioral1/memory/2852-25-0x00000000013D0000-0x0000000001902000-memory.dmp	themida
behavioral1/memory/2852-30-0x00000000013D0000-0x0000000001902000-memory.dmp	themida
behavioral1/memory/2852-29-0x00000000013D0000-0x0000000001902000-memory.dmp	themida
behavioral1/memory/2852-28-0x00000000013D0000-0x0000000001902000-memory.dmp	themida
behavioral1/memory/2852-26-0x00000000013D0000-0x0000000001902000-memory.dmp	themida
behavioral1/memory/2852-27-0x00000000013D0000-0x0000000001902000-memory.dmp	themida
behavioral1/memory/2852-23-0x00000000013D0000-0x0000000001902000-memory.dmp	themida
behavioral1/memory/2852-22-0x00000000013D0000-0x0000000001902000-memory.dmp	themida
behavioral1/memory/2148-20-0x0000000000B50000-0x0000000001082000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/2852-32-0x00000000013D0000-0x0000000001902000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe

Drops file in Windows directory 1 IoCs

Processes:

49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

description ioc process

File created C:\Windows\Tasks\explorku.job 49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.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:

49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

pid process

2148 49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

pid	process
2148	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe

description	pid	process	target process
PID 2148 wrote to memory of 2852	2148	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe	explorku.exe
PID 2148 wrote to memory of 2852	2148	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe	explorku.exe
PID 2148 wrote to memory of 2852	2148	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe	explorku.exe
PID 2148 wrote to memory of 2852	2148	49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.exe
"C:\Users\Admin\AppData\Local\Temp\49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e.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:2148
- 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:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
1.6MB

MD5
18b01b395414f9e1108aa08e0c12fc21

SHA1
b96c252cfff68e7a8af09b02770b44010584eb78

SHA256
49b2e70aea9d43c385348559c535402849cc2d17f777491318e984a803952d9e

SHA512
61a7855cc9cb9ecba8435d9c73d676ccbc6d3fb828c7b73fd7c696bf0d06f7fc8fe64188d54d87ffb35b16393b39ecf1f85596c811eb717e4b49aae8fbae0963

Download Submit
memory/2148-8-0x0000000000B50000-0x0000000001082000-memory.dmp

Filesize
5.2MB

Download
memory/2148-2-0x0000000000B50000-0x0000000001082000-memory.dmp

Filesize
5.2MB

Download
memory/2148-3-0x0000000000B50000-0x0000000001082000-memory.dmp

Filesize
5.2MB

Download
memory/2148-6-0x0000000000B50000-0x0000000001082000-memory.dmp

Filesize
5.2MB

Download
memory/2148-7-0x0000000000B50000-0x0000000001082000-memory.dmp

Filesize
5.2MB

Download
memory/2148-21-0x0000000004AB0000-0x0000000004FE2000-memory.dmp

Filesize
5.2MB

Download
memory/2148-5-0x0000000000B50000-0x0000000001082000-memory.dmp

Filesize
5.2MB

Download
memory/2148-4-0x0000000000B50000-0x0000000001082000-memory.dmp

Filesize
5.2MB

Download
memory/2148-10-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download
memory/2148-34-0x0000000004AB0000-0x0000000004FE2000-memory.dmp

Filesize
5.2MB

Download
memory/2148-1-0x0000000000B50000-0x0000000001082000-memory.dmp

Filesize
5.2MB

Download
memory/2148-0-0x0000000000B50000-0x0000000001082000-memory.dmp

Filesize
5.2MB

Download
memory/2148-20-0x0000000000B50000-0x0000000001082000-memory.dmp

Filesize
5.2MB

Download
memory/2852-30-0x00000000013D0000-0x0000000001902000-memory.dmp

Filesize
5.2MB

Download
memory/2852-26-0x00000000013D0000-0x0000000001902000-memory.dmp

Filesize
5.2MB

Download
memory/2852-27-0x00000000013D0000-0x0000000001902000-memory.dmp

Filesize
5.2MB

Download
memory/2852-23-0x00000000013D0000-0x0000000001902000-memory.dmp

Filesize
5.2MB

Download
memory/2852-22-0x00000000013D0000-0x0000000001902000-memory.dmp

Filesize
5.2MB

Download
memory/2852-28-0x00000000013D0000-0x0000000001902000-memory.dmp

Filesize
5.2MB

Download
memory/2852-29-0x00000000013D0000-0x0000000001902000-memory.dmp

Filesize
5.2MB

Download
memory/2852-25-0x00000000013D0000-0x0000000001902000-memory.dmp

Filesize
5.2MB

Download
memory/2852-32-0x00000000013D0000-0x0000000001902000-memory.dmp

Filesize
5.2MB

Download
memory/2852-24-0x00000000013D0000-0x0000000001902000-memory.dmp

Filesize
5.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads