amadey | 55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d

Analysis

max time kernel
147s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
02-07-2024 02:02

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General

Target

55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe
Size

1.8MB
MD5

742979a5b57dc70750a54561b3e2dae9
SHA1

fe778afc2bb1a013893729c6adac45caaf6c0c20
SHA256

55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d
SHA512

1e2c0637ed25a18e40947f8b831cfe230bce8a8ac31aa043b25b7ece2c514fc979803cbd20300f68118038a37d53b0d372e18367b9fbdbff1519943df765d54b
SSDEEP

49152:r99RrvECymQR8ZMPwOO+Mi9BvdWOG2UvgCJF:Z7M9dR8ZMPwOOH+BW5NJF

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:

55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exeexplorti.exeexplorti.exeexplorti.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.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:

55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exeexplorti.exeexplorti.exeexplorti.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.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
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	55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe

Executes dropped EXE 3 IoCs

Processes:

explorti.exeexplorti.exeexplorti.exe

pid process

1860 explorti.exe
1780 explorti.exe
4080 explorti.exe

pid	process
1860	explorti.exe
1780	explorti.exe
4080	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:

55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exeexplorti.exeexplorti.exeexplorti.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000\Software\Wine	55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe
Key opened	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-1276817940-128734381-631578427-1000\Software\Wine	explorti.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exeexplorti.exeexplorti.exeexplorti.exe

pid process

3968 55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe
1860 explorti.exe
1780 explorti.exe
4080 explorti.exe
Drops file in Windows directory 1 IoCs

Processes:

55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe

description ioc process

File created C:\Windows\Tasks\explorti.job 55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.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	55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exeexplorti.exeexplorti.exeexplorti.exe

pid	process
3968	55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe
3968	55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe
1860	explorti.exe
1860	explorti.exe
1780	explorti.exe
1780	explorti.exe
4080	explorti.exe
4080	explorti.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe

description	pid	process	target process
PID 3968 wrote to memory of 1860	3968	55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe	explorti.exe
PID 3968 wrote to memory of 1860	3968	55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe	explorti.exe
PID 3968 wrote to memory of 1860	3968	55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe	explorti.exe

C:\Users\Admin\AppData\Local\Temp\55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.exe
"C:\Users\Admin\AppData\Local\Temp\55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d.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:3968

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:1860

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:1780

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:4080

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

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Downloads

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

MD5
742979a5b57dc70750a54561b3e2dae9

SHA1
fe778afc2bb1a013893729c6adac45caaf6c0c20

SHA256
55891e3cd090783d396a5d09b904bcbc0f4e045ff192c3740dd08edc7e3fde4d

SHA512
1e2c0637ed25a18e40947f8b831cfe230bce8a8ac31aa043b25b7ece2c514fc979803cbd20300f68118038a37d53b0d372e18367b9fbdbff1519943df765d54b

Download Submit
memory/1780-34-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1780-32-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1780-31-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1780-30-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-27-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-40-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-18-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-19-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-20-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-21-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-22-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-23-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-24-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-25-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-26-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-47-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-28-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-46-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-45-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-44-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-39-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-35-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-36-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-37-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/1860-38-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/3968-1-0x00000000772D6000-0x00000000772D8000-memory.dmp

Filesize
8KB

Download
memory/3968-17-0x0000000000B70000-0x0000000001032000-memory.dmp

Filesize
4.8MB

Download
memory/3968-2-0x0000000000B71000-0x0000000000B9F000-memory.dmp

Filesize
184KB

Download
memory/3968-3-0x0000000000B70000-0x0000000001032000-memory.dmp

Filesize
4.8MB

Download
memory/3968-5-0x0000000000B70000-0x0000000001032000-memory.dmp

Filesize
4.8MB

Download
memory/3968-0-0x0000000000B70000-0x0000000001032000-memory.dmp

Filesize
4.8MB

Download
memory/4080-42-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download
memory/4080-43-0x0000000000A50000-0x0000000000F12000-memory.dmp

Filesize
4.8MB

Download