Malware Analysis Report

2024-11-13 13:35

Sample ID 240613-kytzpswcjk
Target a4c00d11cbfe3f6f845a5390ead98c54_JaffaCakes118
SHA256 87502441a98fcd1f75955a7b9c1e2e63876f1030e30469cf10a74f44dcceabef
Tags
upx
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

87502441a98fcd1f75955a7b9c1e2e63876f1030e30469cf10a74f44dcceabef

Threat Level: Shows suspicious behavior

The file a4c00d11cbfe3f6f845a5390ead98c54_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx

ACProtect 1.3x - 1.4x DLL software

UPX packed file

Unsigned PE

Program crash

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-13 09:01

Signatures

ACProtect 1.3x - 1.4x DLL software

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

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 09:00

Reported

2024-06-13 09:03

Platform

win7-20240508-en

Max time kernel

140s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\幸运28数据采集器免费版\SkinH_EL.dll,#1

Signatures

UPX packed file

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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\幸运28数据采集器免费版\SkinH_EL.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\幸运28数据采集器免费版\SkinH_EL.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3040 -s 248

Network

N/A

Files

memory/3040-4-0x0000000010009000-0x000000001000A000-memory.dmp

memory/3040-5-0x0000000010000000-0x000000001003D000-memory.dmp

memory/3040-3-0x0000000010000000-0x000000001003D000-memory.dmp

memory/3040-2-0x0000000010000000-0x000000001003D000-memory.dmp

memory/3040-1-0x0000000010000000-0x000000001003D000-memory.dmp

memory/3040-0-0x0000000010000000-0x000000001003D000-memory.dmp

memory/3040-6-0x0000000010000000-0x000000001003D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 09:00

Reported

2024-06-13 09:03

Platform

win10v2004-20240508-en

Max time kernel

145s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\幸运28数据采集器免费版\SkinH_EL.dll,#1

Signatures

UPX packed file

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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 232 wrote to memory of 3080 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 232 wrote to memory of 3080 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 232 wrote to memory of 3080 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\幸运28数据采集器免费版\SkinH_EL.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\幸运28数据采集器免费版\SkinH_EL.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 3080 -ip 3080

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3080 -s 644

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4040,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4104 /prefetch:8

Network

Files

memory/3080-1-0x0000000010009000-0x000000001000A000-memory.dmp

memory/3080-0-0x0000000010000000-0x000000001003D000-memory.dmp

memory/3080-3-0x0000000010000000-0x000000001003D000-memory.dmp

memory/3080-2-0x0000000010000000-0x000000001003D000-memory.dmp

memory/3080-4-0x0000000010000000-0x000000001003D000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-13 09:00

Reported

2024-06-13 09:03

Platform

win7-20240611-en

Max time kernel

119s

Max time network

124s

Command Line

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\幸运28数据采集器免费版\官方网站www.2022k.com.url

Signatures

N/A

Processes

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\幸运28数据采集器免费版\官方网站www.2022k.com.url

Network

N/A

Files

memory/2232-0-0x0000000001CC0000-0x0000000001CC1000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-06-13 09:00

Reported

2024-06-13 09:03

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\幸运28数据采集器免费版\官方网站www.2022k.com.url

Signatures

N/A

Processes

C:\Windows\System32\rundll32.exe

"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\幸运28数据采集器免费版\官方网站www.2022k.com.url

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

N/A