Malware Analysis Report

2024-11-13 18:57

Sample ID 240217-fef7aabb8s
Target c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe
SHA256 c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b
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

c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b

Threat Level: Known bad

The file c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe was found to be: Known bad.

Malicious Activity Summary

amadey smokeloader pub3 backdoor trojan

SmokeLoader

Amadey

Downloads MZ/PE file

Executes dropped EXE

Loads dropped DLL

Deletes itself

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-17 04:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-17 04:46

Reported

2024-02-17 04:49

Platform

win7-20231215-en

Max time kernel

150s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.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\E560.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\E560.exe

Checks SCSI registry key(s)

Description Indicator Process Target
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1180 wrote to memory of 2092 N/A N/A C:\Users\Admin\AppData\Local\Temp\E560.exe
PID 1180 wrote to memory of 2092 N/A N/A C:\Users\Admin\AppData\Local\Temp\E560.exe
PID 1180 wrote to memory of 2092 N/A N/A C:\Users\Admin\AppData\Local\Temp\E560.exe
PID 1180 wrote to memory of 2092 N/A N/A C:\Users\Admin\AppData\Local\Temp\E560.exe
PID 2092 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\E560.exe C:\Windows\SysWOW64\WerFault.exe
PID 2092 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\E560.exe C:\Windows\SysWOW64\WerFault.exe
PID 2092 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\E560.exe C:\Windows\SysWOW64\WerFault.exe
PID 2092 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\E560.exe C:\Windows\SysWOW64\WerFault.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe

"C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe"

C:\Users\Admin\AppData\Local\Temp\E560.exe

C:\Users\Admin\AppData\Local\Temp\E560.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 256

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
KR 123.140.161.243:80 sjyey.com tcp
KR 123.140.161.243:80 sjyey.com tcp
KR 123.140.161.243:80 sjyey.com tcp
KR 123.140.161.243:80 sjyey.com tcp
US 8.8.8.8:53 emgvod.com udp
KR 211.171.233.129:80 emgvod.com tcp
KR 123.140.161.243:80 emgvod.com tcp
KR 123.140.161.243:80 emgvod.com tcp
KR 123.140.161.243:80 emgvod.com tcp
KR 123.140.161.243:80 emgvod.com tcp
KR 123.140.161.243:80 emgvod.com tcp

Files

memory/2044-1-0x0000000002C60000-0x0000000002D60000-memory.dmp

memory/2044-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2044-3-0x0000000000400000-0x0000000002BE0000-memory.dmp

memory/1180-4-0x0000000002AA0000-0x0000000002AB6000-memory.dmp

memory/2044-5-0x0000000000400000-0x0000000002BE0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\E560.exe

MD5 b6c1df2e721d3088438c06671de3127a
SHA1 2a95143e66673841dc6338bf1f09d9aceedc1bf5
SHA256 5bc9960a7aca2d039602f7d6a4828ae277665396974dd1227e414c1dc3f2cb69
SHA512 602df6897a406fee67957246096f6820e4a79fb8511f644e94ef17c30cb3bfbb124998849145997d10a841c95d409c349c5c81f66c0c73c277c07137ce0d2a4a

memory/2092-18-0x0000000000270000-0x0000000000370000-memory.dmp

memory/2092-19-0x0000000000850000-0x00000000008BF000-memory.dmp

memory/2092-20-0x0000000000400000-0x0000000000850000-memory.dmp

memory/2092-26-0x0000000000400000-0x0000000000850000-memory.dmp

memory/2092-28-0x0000000000270000-0x0000000000370000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-17 04:46

Reported

2024-02-17 04:49

Platform

win10v2004-20231215-en

Max time kernel

151s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

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

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe

"C:\Users\Admin\AppData\Local\Temp\c40fe915433c1a8094a858affe62c6079154c668645f8e17751e7f39ebf4d31b.exe"

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 sjyey.com udp
MX 187.211.34.223:80 sjyey.com tcp
MX 187.211.34.223:80 sjyey.com tcp
MX 187.211.34.223:80 sjyey.com tcp
US 8.8.8.8:53 223.34.211.187.in-addr.arpa udp
MX 187.211.34.223:80 sjyey.com tcp
US 8.8.8.8:53 emgvod.com udp
PE 190.12.87.61:80 emgvod.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 61.87.12.190.in-addr.arpa udp
MX 187.211.34.223:80 sjyey.com tcp
MX 187.211.34.223:80 sjyey.com tcp
MX 187.211.34.223:80 sjyey.com tcp
MX 187.211.34.223:80 sjyey.com tcp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 9.173.189.20.in-addr.arpa udp

Files

memory/3612-1-0x0000000002D50000-0x0000000002E50000-memory.dmp

memory/3612-2-0x0000000004920000-0x000000000492B000-memory.dmp

memory/3612-3-0x0000000000400000-0x0000000002BE0000-memory.dmp

memory/3612-4-0x0000000000400000-0x0000000002BE0000-memory.dmp

memory/3408-5-0x0000000001240000-0x0000000001256000-memory.dmp

memory/3612-6-0x0000000000400000-0x0000000002BE0000-memory.dmp

memory/3612-9-0x0000000004920000-0x000000000492B000-memory.dmp