amadey | 8e9ed73e06887f551baaccf5705e6dd5aea7a2e186d92afb0c9655f106408939

General

Target

ama.exe
Size

1.8MB
MD5

077b16532e2f2bc14848b1b90faaa4db
SHA1

4f98a243cb26ad1b2c5c2671ebf16b1c4631837d
SHA256

8e9ed73e06887f551baaccf5705e6dd5aea7a2e186d92afb0c9655f106408939
SHA512

acb531b322efa44390a09a1ff62947ebf009efc9cd591e971deff05d8ef6c8b0afb0b58fe86359e92cd6383481f8a01fea29e2c56b08e7c2b33cf64a4f0705de
SSDEEP

24576:mZEGcEiC2zTbdnwak8LjxWbkqg7o0nFpQYT4AvKxDoBJuZV3jjjvjq6WCPzReF3q:mV2zThX10kvcevRJyx4uv3jjju6reLp

Score

10^/10

amadey 4bee07 discovery evasion trojan

Malware Config

Extracted

Family

amadey

Version

5.04

Botnet

4bee07

C2

http://185.215.113.209

Attributes

install_dir
fc9e0aaab7
install_file
defnur.exe
strings_key
191655f008adc880f91bfc85bc56db54
url_paths
/Fru7Nk9/index.php

rc4.plain

Signatures

Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
trojan amadey
Amadey family
amadey

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ama.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	defnur.exe

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	2696	rundll32.exe

Downloads MZ/PE file

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ama.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ama.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	defnur.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	defnur.exe

Executes dropped EXE 1 IoCs

pid	Process
2796	defnur.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	ama.exe
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	defnur.exe

Loads dropped DLL 5 IoCs

pid	Process
2492	ama.exe
2696	rundll32.exe
2696	rundll32.exe
2696	rundll32.exe
2696	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2492	ama.exe
2796	defnur.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\defnur.job	ama.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ama.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	defnur.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2492	ama.exe
2796	defnur.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2492	ama.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2796	2492	ama.exe	30
PID 2492 wrote to memory of 2796	2492	ama.exe	30
PID 2492 wrote to memory of 2796	2492	ama.exe	30
PID 2492 wrote to memory of 2796	2492	ama.exe	30
PID 2796 wrote to memory of 2696	2796	defnur.exe	32
PID 2796 wrote to memory of 2696	2796	defnur.exe	32
PID 2796 wrote to memory of 2696	2796	defnur.exe	32
PID 2796 wrote to memory of 2696	2796	defnur.exe	32
PID 2796 wrote to memory of 2696	2796	defnur.exe	32
PID 2796 wrote to memory of 2696	2796	defnur.exe	32
PID 2796 wrote to memory of 2696	2796	defnur.exe	32

C:\Users\Admin\AppData\Local\Temp\ama.exe
"C:\Users\Admin\AppData\Local\Temp\ama.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Users\Admin\AppData\Local\Temp\fc9e0aaab7\defnur.exe
  "C:\Users\Admin\AppData\Local\Temp\fc9e0aaab7\defnur.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll, Main
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll

Filesize
124KB

MD5
0d3418372c854ee228b78e16ea7059be

SHA1
c0a29d4e74d39308a50f4fd21d0cca1f98cb02c1

SHA256
885bf0b3b12b77ef3f953fbb48def1b45079faa2a4d574ee16afdbafa1de3ac7

SHA512
e30dced307e04ae664367a998cd1ba36349e99e363f70897b5d90c898de2c69c393182c3afba63a74956b5e6f49f0635468e88ed31dd1e3c86c21e987ddd2c19

Download Submit
\Users\Admin\AppData\Local\Temp\fc9e0aaab7\defnur.exe

Filesize
1.8MB

MD5
077b16532e2f2bc14848b1b90faaa4db

SHA1
4f98a243cb26ad1b2c5c2671ebf16b1c4631837d

SHA256
8e9ed73e06887f551baaccf5705e6dd5aea7a2e186d92afb0c9655f106408939

SHA512
acb531b322efa44390a09a1ff62947ebf009efc9cd591e971deff05d8ef6c8b0afb0b58fe86359e92cd6383481f8a01fea29e2c56b08e7c2b33cf64a4f0705de

Download Submit
memory/2492-0-0x0000000000A90000-0x0000000000F49000-memory.dmp

Filesize
4.7MB

Download
memory/2492-1-0x0000000077E60000-0x0000000077E62000-memory.dmp

Filesize
8KB

Download
memory/2492-2-0x0000000000A91000-0x0000000000ABF000-memory.dmp

Filesize
184KB

Download
memory/2492-3-0x0000000000A90000-0x0000000000F49000-memory.dmp

Filesize
4.7MB

Download
memory/2492-5-0x0000000000A90000-0x0000000000F49000-memory.dmp

Filesize
4.7MB

Download
memory/2492-16-0x00000000067D0000-0x0000000006C89000-memory.dmp

Filesize
4.7MB

Download
memory/2492-15-0x0000000000A90000-0x0000000000F49000-memory.dmp

Filesize
4.7MB

Download
memory/2796-24-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-40-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-21-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-22-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-23-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-18-0x0000000000101000-0x000000000012F000-memory.dmp

Filesize
184KB

Download
memory/2796-25-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-17-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-37-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-38-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-39-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-19-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-41-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-42-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-43-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-44-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-45-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-46-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-47-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-48-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download
memory/2796-49-0x0000000000100000-0x00000000005B9000-memory.dmp

Filesize
4.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads