Malware Analysis Report

2024-11-13 18:56

Sample ID 240217-fvyq9sca74
Target a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0
SHA256 a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0
Tags
amadey smokeloader pub3 backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0

Threat Level: Known bad

The file a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0 was found to be: Known bad.

Malicious Activity Summary

amadey smokeloader pub3 backdoor trojan

Amadey

SmokeLoader

Downloads MZ/PE file

Deletes itself

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Program crash

Unsigned PE

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Suspicious use of FindShellTrayWindow

Suspicious behavior: MapViewOfSection

Checks SCSI registry key(s)

Uses Task Scheduler COM API

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-17 05:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-17 05:12

Reported

2024-02-17 05:14

Platform

win7-20231215-en

Max time kernel

150s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe"

Signatures

Amadey

trojan amadey

SmokeLoader

trojan backdoor smokeloader

Downloads MZ/PE file

Deletes itself

Description Indicator Process Target
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Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\EC0.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\EC0.exe

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A N/A N/A
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Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A N/A N/A
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Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1216 wrote to memory of 2668 N/A N/A C:\Users\Admin\AppData\Local\Temp\EC0.exe
PID 1216 wrote to memory of 2668 N/A N/A C:\Users\Admin\AppData\Local\Temp\EC0.exe
PID 1216 wrote to memory of 2668 N/A N/A C:\Users\Admin\AppData\Local\Temp\EC0.exe
PID 1216 wrote to memory of 2668 N/A N/A C:\Users\Admin\AppData\Local\Temp\EC0.exe
PID 2668 wrote to memory of 2560 N/A C:\Users\Admin\AppData\Local\Temp\EC0.exe C:\Windows\SysWOW64\WerFault.exe
PID 2668 wrote to memory of 2560 N/A C:\Users\Admin\AppData\Local\Temp\EC0.exe C:\Windows\SysWOW64\WerFault.exe
PID 2668 wrote to memory of 2560 N/A C:\Users\Admin\AppData\Local\Temp\EC0.exe C:\Windows\SysWOW64\WerFault.exe
PID 2668 wrote to memory of 2560 N/A C:\Users\Admin\AppData\Local\Temp\EC0.exe C:\Windows\SysWOW64\WerFault.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe

"C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe"

C:\Users\Admin\AppData\Local\Temp\EC0.exe

C:\Users\Admin\AppData\Local\Temp\EC0.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2668 -s 256

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp
US 8.8.8.8:53 emgvod.com udp
KR 211.53.230.67:80 emgvod.com tcp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp

Files

memory/928-1-0x00000000008C0000-0x00000000009C0000-memory.dmp

memory/928-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/928-3-0x0000000000400000-0x000000000082A000-memory.dmp

memory/1216-4-0x0000000002A60000-0x0000000002A76000-memory.dmp

memory/928-5-0x0000000000400000-0x000000000082A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\EC0.exe

MD5 b6c1df2e721d3088438c06671de3127a
SHA1 2a95143e66673841dc6338bf1f09d9aceedc1bf5
SHA256 5bc9960a7aca2d039602f7d6a4828ae277665396974dd1227e414c1dc3f2cb69
SHA512 602df6897a406fee67957246096f6820e4a79fb8511f644e94ef17c30cb3bfbb124998849145997d10a841c95d409c349c5c81f66c0c73c277c07137ce0d2a4a

memory/2668-18-0x0000000000950000-0x0000000000A50000-memory.dmp

memory/2668-19-0x0000000000220000-0x000000000028F000-memory.dmp

memory/2668-20-0x0000000000400000-0x0000000000850000-memory.dmp

memory/2668-28-0x0000000000950000-0x0000000000A50000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-17 05:12

Reported

2024-02-17 05:14

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe"

Signatures

Amadey

trojan amadey

SmokeLoader

trojan backdoor smokeloader

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\E213.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe N/A

Deletes itself

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

Enumerates physical storage devices

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe

"C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe"

C:\Users\Admin\AppData\Local\Temp\E213.exe

C:\Users\Admin\AppData\Local\Temp\E213.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2272 -ip 2272

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 600

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2272 -ip 2272

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2272 -ip 2272

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 696

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2272 -ip 2272

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 748

C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe

"C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2272 -ip 2272

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 1240

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4828 -ip 4828

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 616

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4828 -ip 4828

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 760

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4828 -ip 4828

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 828

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN Utsysc.exe /TR "C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe" /F

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4828 -ip 4828

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 956

C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe

C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1660 -ip 1660

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1660 -s 444

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 sjyey.com udp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp
US 8.8.8.8:53 90.12.232.189.in-addr.arpa udp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp
US 8.8.8.8:53 emgvod.com udp
KR 210.182.29.70:80 emgvod.com tcp
US 8.8.8.8:53 70.29.182.210.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
MX 189.232.12.90:80 sjyey.com tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
MX 189.232.12.90:80 sjyey.com tcp
MX 189.232.12.90:80 sjyey.com tcp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp

Files

memory/2532-1-0x00000000009C0000-0x0000000000AC0000-memory.dmp

memory/2532-2-0x0000000000990000-0x000000000099B000-memory.dmp

memory/2532-3-0x0000000000400000-0x000000000082A000-memory.dmp

memory/3428-4-0x00000000027D0000-0x00000000027E6000-memory.dmp

memory/2532-5-0x0000000000400000-0x000000000082A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\E213.exe

MD5 b6c1df2e721d3088438c06671de3127a
SHA1 2a95143e66673841dc6338bf1f09d9aceedc1bf5
SHA256 5bc9960a7aca2d039602f7d6a4828ae277665396974dd1227e414c1dc3f2cb69
SHA512 602df6897a406fee67957246096f6820e4a79fb8511f644e94ef17c30cb3bfbb124998849145997d10a841c95d409c349c5c81f66c0c73c277c07137ce0d2a4a

memory/2272-16-0x0000000000A00000-0x0000000000B00000-memory.dmp

memory/2272-17-0x00000000024D0000-0x000000000253F000-memory.dmp

memory/2272-18-0x0000000000400000-0x0000000000850000-memory.dmp

memory/2272-27-0x00000000024D0000-0x000000000253F000-memory.dmp

memory/2272-26-0x0000000000400000-0x0000000000850000-memory.dmp

memory/4828-29-0x0000000000910000-0x0000000000A10000-memory.dmp

memory/4828-30-0x0000000000400000-0x0000000000850000-memory.dmp

memory/4828-31-0x0000000000400000-0x0000000000850000-memory.dmp

memory/4828-33-0x0000000000910000-0x0000000000A10000-memory.dmp

memory/1660-40-0x0000000000860000-0x0000000000960000-memory.dmp

memory/1660-41-0x0000000000400000-0x0000000000850000-memory.dmp