amadey | d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc

Analysis

max time kernel
144s
max time network
99s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
01-07-2024 05:25

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General

Target

d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe
Size

1.8MB
MD5

c1a3e9be7b0e451c3dc2bea3994d462c
SHA1

d857e703cea2d430983cab8634bfff2df62e8608
SHA256

d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc
SHA512

516453f64da6fe2824491230cb6cd21370e8200ba5948436375d729378b87b6117a50793bea8f60226e5cd6b0b487bb66c339645bb33f10e55e7f19de2be3bce
SSDEEP

49152:6lbzDW2LFFlWMys8Mgl84sLBfGUdyKJmXke:6ldF7zIMjBLBfGUdyUu3

Score

10^/10

amadey 4dd39d evasion trojan

Malware Config

Extracted

Family

amadey

Version

4.30

Botnet

4dd39d

http://77.91.77.82

Attributes

install_dir
ad40971b6b
install_file
explorti.exe
strings_key
a434973ad22def7137dbb5e059b7081e
url_paths
/Hun4Ko/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:

d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exeexplorti.exeexplorti.exeexplorti.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.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:

explorti.exeexplorti.exed91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exeexplorti.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe

Executes dropped EXE 3 IoCs

Processes:

explorti.exeexplorti.exeexplorti.exe

pid process

1032 explorti.exe
3220 explorti.exe
2844 explorti.exe

pid	process
1032	explorti.exe
3220	explorti.exe
2844	explorti.exe

Identifies Wine through registry keys 2 TTPs 4 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

Processes:

d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exeexplorti.exeexplorti.exeexplorti.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine	d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe
Key opened	\REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Wine	explorti.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exeexplorti.exeexplorti.exeexplorti.exe

pid process

4952 d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe
1032 explorti.exe
3220 explorti.exe
2844 explorti.exe
Drops file in Windows directory 1 IoCs

Processes:

d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe

description ioc process

File created C:\Windows\Tasks\explorti.job d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.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\explorti.job	d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exeexplorti.exeexplorti.exeexplorti.exe

pid	process
4952	d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe
4952	d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe
1032	explorti.exe
1032	explorti.exe
3220	explorti.exe
3220	explorti.exe
2844	explorti.exe
2844	explorti.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe

description	pid	process	target process
PID 4952 wrote to memory of 1032	4952	d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe	explorti.exe
PID 4952 wrote to memory of 1032	4952	d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe	explorti.exe
PID 4952 wrote to memory of 1032	4952	d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe	explorti.exe

C:\Users\Admin\AppData\Local\Temp\d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe
"C:\Users\Admin\AppData\Local\Temp\d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4952

C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
"C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.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
- Suspicious behavior: EnumeratesProcesses
PID:1032

C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
1⤵
- 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
- Suspicious behavior: EnumeratesProcesses
PID:3220

C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
1⤵
- 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
- Suspicious behavior: EnumeratesProcesses
PID:2844

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
Filesize
1.8MB

MD5
c1a3e9be7b0e451c3dc2bea3994d462c

SHA1
d857e703cea2d430983cab8634bfff2df62e8608

SHA256
d91e98278d21b8c40cb7f75d5fd8615143e146de810cbd0821de559f453ef0fc

SHA512
516453f64da6fe2824491230cb6cd21370e8200ba5948436375d729378b87b6117a50793bea8f60226e5cd6b0b487bb66c339645bb33f10e55e7f19de2be3bce

Download Submit
memory/1032-27-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-19-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-46-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-45-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-44-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-18-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-43-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-42-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-20-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-21-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-22-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-23-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-24-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-38-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-26-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-37-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-36-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-35-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-25-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-34-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/1032-33-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/2844-40-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/2844-41-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/3220-32-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/3220-31-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/3220-30-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/3220-29-0x0000000000540000-0x0000000000A05000-memory.dmp

Filesize
4.8MB

Download
memory/4952-2-0x00000000005D1000-0x00000000005FF000-memory.dmp

Filesize
184KB

Download
memory/4952-5-0x00000000005D0000-0x0000000000A95000-memory.dmp

Filesize
4.8MB

Download
memory/4952-0-0x00000000005D0000-0x0000000000A95000-memory.dmp

Filesize
4.8MB

Download
memory/4952-17-0x00000000005D0000-0x0000000000A95000-memory.dmp

Filesize
4.8MB

Download
memory/4952-1-0x0000000077176000-0x0000000077178000-memory.dmp

Filesize
8KB

Download
memory/4952-3-0x00000000005D0000-0x0000000000A95000-memory.dmp

Filesize
4.8MB

Download