Malware Analysis Report

2024-12-08 00:44

Sample ID 240503-ms5v5aeg47
Target 105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118
SHA256 1107b3567b1f1f089ebeb7e3b284983b97219be9da7bc6a19850f8fe67dd56d4
Tags
upx smokeloader 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

1107b3567b1f1f089ebeb7e3b284983b97219be9da7bc6a19850f8fe67dd56d4

Threat Level: Known bad

The file 105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

upx smokeloader backdoor trojan

SmokeLoader

UPX packed file

Maps connected drives based on registry

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-03 10:44

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-03 10:44

Reported

2024-05-03 10:47

Platform

win7-20240221-en

Max time kernel

141s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

UPX packed file

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

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe 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\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2944 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe
PID 2944 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe
PID 2944 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe
PID 2944 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe
PID 2944 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe
PID 2944 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe
PID 2944 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe"

Network

N/A

Files

memory/2944-0-0x0000000000400000-0x0000000000456000-memory.dmp

memory/2944-6-0x0000000000400000-0x0000000000456000-memory.dmp

memory/2164-8-0x0000000000400000-0x000000000040A000-memory.dmp

memory/2944-7-0x0000000000500000-0x0000000000600000-memory.dmp

memory/2164-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2164-9-0x0000000000400000-0x000000000040A000-memory.dmp

memory/1204-10-0x0000000002AF0000-0x0000000002AF1000-memory.dmp

memory/1204-11-0x0000000002E00000-0x0000000002E15000-memory.dmp

memory/2164-12-0x0000000000400000-0x000000000040A000-memory.dmp

memory/1204-14-0x0000000002AF0000-0x0000000002AF1000-memory.dmp

memory/1204-15-0x0000000002E00000-0x0000000002E15000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-03 10:44

Reported

2024-05-03 10:47

Platform

win10v2004-20240419-en

Max time kernel

133s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

UPX packed file

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

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe 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\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\105466dfc9e5ce4c7236c54a5f6ab826_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.171:443 www.bing.com tcp
US 8.8.8.8:53 171.61.62.23.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 51.15.97.104.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/3984-0-0x0000000000400000-0x0000000000456000-memory.dmp

memory/4796-5-0x0000000000400000-0x000000000040A000-memory.dmp

memory/4796-6-0x0000000000410000-0x00000000004D9000-memory.dmp

memory/3984-8-0x0000000000400000-0x0000000000456000-memory.dmp

memory/4796-4-0x0000000000400000-0x000000000040A000-memory.dmp

memory/3984-3-0x0000000000560000-0x0000000000660000-memory.dmp

memory/4796-9-0x0000000000400000-0x000000000040A000-memory.dmp