Malware Analysis Report

2024-12-08 01:40

Sample ID 240427-vvfysadg4x
Target c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12
SHA256 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12
Tags
amadey evasion trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12

Threat Level: Known bad

The file c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12 was found to be: Known bad.

Malicious Activity Summary

amadey evasion trojan

Amadey

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

Downloads MZ/PE file

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Identifies Wine through registry keys

Checks BIOS information in registry

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-27 17:18

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-27 17:18

Reported

2024-04-27 17:18

Platform

win10v2004-20240419-en

Max time kernel

25s

Max time network

28s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe"

Signatures

Amadey

trojan amadey

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

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Tasks\explorta.job C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A

Enumerates physical storage devices

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 C:\Windows\system32\taskmgr.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A C:\Windows\system32\taskmgr.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName C:\Windows\system32\taskmgr.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\system32\taskmgr.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\system32\taskmgr.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\system32\taskmgr.exe N/A
Token: 33 N/A C:\Windows\system32\taskmgr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\taskmgr.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe

"C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe"

C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe

"C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe"

C:\Windows\system32\taskmgr.exe

"C:\Windows\system32\taskmgr.exe" /0

Network

Country Destination Domain Proto
RU 193.233.132.139:80 tcp
RU 193.233.132.139:80 tcp

Files

memory/4904-0-0x0000000000CF0000-0x00000000011A9000-memory.dmp

memory/4904-1-0x0000000077B84000-0x0000000077B86000-memory.dmp

memory/4904-2-0x0000000005620000-0x0000000005621000-memory.dmp

memory/4904-6-0x0000000005600000-0x0000000005601000-memory.dmp

memory/4904-5-0x00000000055F0000-0x00000000055F1000-memory.dmp

memory/4904-4-0x0000000005650000-0x0000000005651000-memory.dmp

memory/4904-3-0x0000000005610000-0x0000000005611000-memory.dmp

memory/4904-8-0x0000000005660000-0x0000000005661000-memory.dmp

memory/4904-7-0x0000000005670000-0x0000000005671000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe

MD5 00d2b75c4c3e234c8576a67d24849596
SHA1 d5badbb62b2adbcef7e01b3b5bd342d11c09cdb5
SHA256 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12
SHA512 0fa5377df174c92130fea3352e60a9571e6724c39fb5397a94d93d84fec3b044ad3935a1ba5ab9243a66d2b5dc02756aeb087118e6a7097b810c01da6813cd7d

memory/3088-21-0x0000000000340000-0x00000000007F9000-memory.dmp

memory/4904-22-0x0000000000CF0000-0x00000000011A9000-memory.dmp

memory/3088-24-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

memory/3088-25-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

memory/3088-23-0x0000000004EE0000-0x0000000004EE1000-memory.dmp

memory/3088-28-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

memory/3088-27-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

memory/3088-26-0x0000000004F10000-0x0000000004F11000-memory.dmp

memory/3088-30-0x0000000004F30000-0x0000000004F31000-memory.dmp

memory/3088-29-0x0000000004F40000-0x0000000004F41000-memory.dmp

memory/3088-31-0x0000000000340000-0x00000000007F9000-memory.dmp

memory/5008-32-0x0000014A19F80000-0x0000014A19F81000-memory.dmp

memory/5008-34-0x0000014A19F80000-0x0000014A19F81000-memory.dmp

memory/5008-33-0x0000014A19F80000-0x0000014A19F81000-memory.dmp

memory/5008-40-0x0000014A19F80000-0x0000014A19F81000-memory.dmp

memory/5008-44-0x0000014A19F80000-0x0000014A19F81000-memory.dmp

memory/5008-43-0x0000014A19F80000-0x0000014A19F81000-memory.dmp

memory/5008-42-0x0000014A19F80000-0x0000014A19F81000-memory.dmp

memory/5008-41-0x0000014A19F80000-0x0000014A19F81000-memory.dmp

memory/5008-38-0x0000014A19F80000-0x0000014A19F81000-memory.dmp

memory/5008-39-0x0000014A19F80000-0x0000014A19F81000-memory.dmp

memory/3088-45-0x0000000000340000-0x00000000007F9000-memory.dmp

memory/3088-46-0x0000000000340000-0x00000000007F9000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-27 17:18

Reported

2024-04-27 17:18

Platform

win7-20231129-en

Max time kernel

3s

Max time network

5s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe"

Signatures

Amadey

trojan amadey

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

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A

Downloads MZ/PE file

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Tasks\explorta.job C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe

"C:\Users\Admin\AppData\Local\Temp\c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12.exe"

C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe

"C:\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe"

Network

Country Destination Domain Proto
RU 193.233.132.139:80 193.233.132.139 tcp
RU 193.233.132.167:80 193.233.132.167 tcp

Files

memory/3040-0-0x00000000009E0000-0x0000000000E99000-memory.dmp

memory/3040-1-0x0000000077E00000-0x0000000077E02000-memory.dmp

memory/3040-2-0x0000000002640000-0x0000000002641000-memory.dmp

memory/3040-4-0x0000000002620000-0x0000000002621000-memory.dmp

memory/3040-3-0x0000000002760000-0x0000000002761000-memory.dmp

memory/3040-5-0x0000000002910000-0x0000000002911000-memory.dmp

memory/3040-12-0x0000000002560000-0x0000000002561000-memory.dmp

memory/3040-11-0x0000000002380000-0x0000000002381000-memory.dmp

memory/3040-10-0x00000000025D0000-0x00000000025D1000-memory.dmp

memory/3040-9-0x00000000025C0000-0x00000000025C1000-memory.dmp

memory/3040-8-0x00000000024D0000-0x00000000024D1000-memory.dmp

memory/3040-6-0x0000000000950000-0x0000000000951000-memory.dmp

memory/3040-7-0x0000000002630000-0x0000000002631000-memory.dmp

memory/3040-15-0x0000000002970000-0x0000000002971000-memory.dmp

memory/3040-14-0x00000000025B0000-0x00000000025B1000-memory.dmp

memory/3040-16-0x0000000002360000-0x0000000002361000-memory.dmp

memory/3040-17-0x0000000002B50000-0x0000000002B51000-memory.dmp

\Users\Admin\AppData\Local\Temp\5454e6f062\explorta.exe

MD5 00d2b75c4c3e234c8576a67d24849596
SHA1 d5badbb62b2adbcef7e01b3b5bd342d11c09cdb5
SHA256 c81600b4e9f10f09529b539f4440225522777ad2d6b58400e4081f3117af7b12
SHA512 0fa5377df174c92130fea3352e60a9571e6724c39fb5397a94d93d84fec3b044ad3935a1ba5ab9243a66d2b5dc02756aeb087118e6a7097b810c01da6813cd7d

memory/2536-29-0x0000000000F30000-0x00000000013E9000-memory.dmp

memory/3040-28-0x00000000009E0000-0x0000000000E99000-memory.dmp

memory/3040-25-0x0000000007040000-0x00000000074F9000-memory.dmp

memory/2536-31-0x0000000000E20000-0x0000000000E21000-memory.dmp

memory/2536-32-0x0000000000BA0000-0x0000000000BA1000-memory.dmp

memory/2536-30-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

memory/2536-33-0x0000000002860000-0x0000000002861000-memory.dmp

memory/2536-34-0x0000000000320000-0x0000000000321000-memory.dmp

memory/2536-36-0x00000000004B0000-0x00000000004B1000-memory.dmp

memory/2536-35-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

memory/2536-38-0x0000000000B50000-0x0000000000B51000-memory.dmp

memory/2536-39-0x0000000002850000-0x0000000002851000-memory.dmp

memory/2536-37-0x0000000000A40000-0x0000000000A41000-memory.dmp

memory/2536-40-0x0000000000460000-0x0000000000461000-memory.dmp

memory/2536-41-0x00000000006D0000-0x00000000006D1000-memory.dmp

memory/2536-46-0x0000000000330000-0x0000000000331000-memory.dmp

memory/2536-45-0x0000000002A00000-0x0000000002A01000-memory.dmp

memory/2536-44-0x0000000002870000-0x0000000002871000-memory.dmp

memory/2536-43-0x0000000000970000-0x0000000000971000-memory.dmp