amadey | 81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974

General

Target

81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe
Size

3.0MB
MD5

eaf8c350c3e06f8a31894226e24daccf
SHA1

4d2be3a9313ede7cf1028dc3d573f4194b6c05bd
SHA256

81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974
SHA512

df494c2988c59156773df91bfcddd6bece0e1146d3407ab641c8b4be765b3e3918c76acd3d5082deff09bd3902a985327a0f8eebb558ec60a0202a87aa493a46
SSDEEP

49152:2oGsWNnkMSa4qBenO8LJ3/Qh2O7uI7QBSQL29pPW5h7M42sSQ3Yd3vLfc/wnVNDf:jGv7IJHeRhqWFJtBbmne

Score

10^/10

amadey 9c9aa5 defense_evasion discovery trojan

Malware Config

Extracted

Family

amadey

Version

4.42

Botnet

9c9aa5

C2

http://185.215.113.43

Attributes

install_dir
abc3bc1985
install_file
skotes.exe
strings_key
8a35cf2ea38c2817dba29a4b5b25dcf0
url_paths
/Zu7JuNko/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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe

Executes dropped EXE 1 IoCs

pid	Process
2872	skotes.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	skotes.exe

Loads dropped DLL 1 IoCs

pid	Process
2276	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2276	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe
2872	skotes.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.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 2 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	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2276	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe
2872	skotes.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2276	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2872	2276	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe	30
PID 2276 wrote to memory of 2872	2276	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe	30
PID 2276 wrote to memory of 2872	2276	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe	30
PID 2276 wrote to memory of 2872	2276	81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe	30

C:\Users\Admin\AppData\Local\Temp\81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.exe
"C:\Users\Admin\AppData\Local\Temp\81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974.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:2276
- C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
  "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.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
  PID:2872

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

\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe

Filesize
3.0MB

MD5
eaf8c350c3e06f8a31894226e24daccf

SHA1
4d2be3a9313ede7cf1028dc3d573f4194b6c05bd

SHA256
81ac1af2fb04e03376e43045b7834d47a4f763ab8d5b21ab77a5be382b7de974

SHA512
df494c2988c59156773df91bfcddd6bece0e1146d3407ab641c8b4be765b3e3918c76acd3d5082deff09bd3902a985327a0f8eebb558ec60a0202a87aa493a46

Download Submit
memory/2276-15-0x0000000000AB1000-0x0000000000B19000-memory.dmp

Filesize
416KB

Download
memory/2276-1-0x0000000077370000-0x0000000077372000-memory.dmp

Filesize
8KB

Download
memory/2276-2-0x0000000000AB1000-0x0000000000B19000-memory.dmp

Filesize
416KB

Download
memory/2276-3-0x0000000000AB0000-0x0000000000DB8000-memory.dmp

Filesize
3.0MB

Download
memory/2276-4-0x0000000000AB0000-0x0000000000DB8000-memory.dmp

Filesize
3.0MB

Download
memory/2276-14-0x0000000000AB0000-0x0000000000DB8000-memory.dmp

Filesize
3.0MB

Download
memory/2276-0-0x0000000000AB0000-0x0000000000DB8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-24-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-29-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-19-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-21-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-22-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-23-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-17-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-25-0x00000000001D1000-0x0000000000239000-memory.dmp

Filesize
416KB

Download
memory/2872-26-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-27-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-28-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-18-0x00000000001D1000-0x0000000000239000-memory.dmp

Filesize
416KB

Download
memory/2872-30-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-31-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-32-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-33-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-34-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-35-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-36-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-37-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download
memory/2872-38-0x00000000001D0000-0x00000000004D8000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads