Malware Analysis Report

2025-03-14 22:57

Sample ID 240406-1x27pada22
Target e3629c723403238a0ac3e45314dc4cd0_JaffaCakes118
SHA256 d5bdef98423010f4bdca5d80ee4f598db5f2ebb8fc20b6e596e331f9b6cad06a
Tags
persistence
score
7/10

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
7/10

SHA256

d5bdef98423010f4bdca5d80ee4f598db5f2ebb8fc20b6e596e331f9b6cad06a

Threat Level: Shows suspicious behavior

The file e3629c723403238a0ac3e45314dc4cd0_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-06 22:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 22:02

Reported

2024-04-06 22:05

Platform

win7-20240221-en

Max time kernel

143s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e3629c723403238a0ac3e45314dc4cd0_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe N/A
N/A N/A C:\Windows\www.hmhk.cn.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\e3629c723403238a0ac3e45314dc4cd0_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\www.hmhk.cn.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe N/A
File opened for modification C:\Windows\www.hmhk.cn.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\www.hmhk.cn.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\www.hmhk.cn.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e3629c723403238a0ac3e45314dc4cd0_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e3629c723403238a0ac3e45314dc4cd0_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe

C:\Windows\www.hmhk.cn.exe

C:\Windows\www.hmhk.cn.exe

C:\Program Files\Internet Explorer\IEXPLORE.EXE

"C:\Program Files\Internet Explorer\IEXPLORE.EXE"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pcaa.3322.org udp

Files

memory/3012-1-0x0000000000350000-0x00000000003A0000-memory.dmp

memory/3012-0-0x0000000001000000-0x000000000112C000-memory.dmp

memory/3012-2-0x0000000000410000-0x0000000000411000-memory.dmp

memory/3012-4-0x0000000000300000-0x0000000000301000-memory.dmp

memory/3012-3-0x0000000000310000-0x0000000000311000-memory.dmp

memory/3012-5-0x0000000000340000-0x0000000000341000-memory.dmp

memory/3012-6-0x00000000003A0000-0x00000000003A1000-memory.dmp

memory/3012-7-0x0000000000420000-0x0000000000421000-memory.dmp

memory/3012-10-0x00000000003B0000-0x00000000003B1000-memory.dmp

memory/3012-11-0x0000000000330000-0x0000000000331000-memory.dmp

memory/3012-13-0x0000000000450000-0x0000000000451000-memory.dmp

memory/3012-12-0x00000000009D0000-0x00000000009D1000-memory.dmp

memory/3012-14-0x0000000000440000-0x0000000000441000-memory.dmp

memory/3012-15-0x0000000000990000-0x0000000000991000-memory.dmp

memory/3012-16-0x00000000009A0000-0x00000000009A1000-memory.dmp

memory/3012-17-0x00000000009E0000-0x00000000009E1000-memory.dmp

memory/3012-18-0x00000000009B0000-0x00000000009B1000-memory.dmp

memory/3012-19-0x0000000000460000-0x0000000000461000-memory.dmp

memory/3012-21-0x0000000000A00000-0x0000000000A01000-memory.dmp

memory/3012-20-0x0000000000A10000-0x0000000000A11000-memory.dmp

memory/3012-22-0x0000000000A40000-0x0000000000A41000-memory.dmp

memory/3012-23-0x0000000000A50000-0x0000000000A51000-memory.dmp

memory/3012-24-0x0000000000A60000-0x0000000000A61000-memory.dmp

memory/3012-25-0x0000000000A30000-0x0000000000A31000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe

MD5 382877fe1393c849a0d865a84f76f87e
SHA1 0039e16007054af463b3c191850a1d77a24c4853
SHA256 efbfd5a449f7a4a6bbdd093e12f673fcaafbe4d81c51ec2dbbf0210f57e37c5c
SHA512 f6b43182c21fa84cdb2908b116f7b742ef502f9446ec359925f047079697bbd4fb3bfa47fd3a071912af5669cbdb11ef2b19a39d5ed4b510c425a223579ccdef

memory/2680-33-0x0000000000400000-0x00000000004CF200-memory.dmp

memory/3012-34-0x0000000002AA0000-0x0000000002B70000-memory.dmp

memory/2680-35-0x00000000003D0000-0x00000000003D1000-memory.dmp

memory/1556-40-0x0000000000250000-0x0000000000251000-memory.dmp

memory/2680-42-0x0000000000400000-0x00000000004CF200-memory.dmp

memory/3012-43-0x0000000001000000-0x000000000112C000-memory.dmp

memory/3012-44-0x0000000000350000-0x00000000003A0000-memory.dmp

memory/1556-45-0x0000000000400000-0x00000000004CF200-memory.dmp

memory/1556-47-0x0000000000250000-0x0000000000251000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 22:02

Reported

2024-04-06 22:05

Platform

win10v2004-20240226-en

Max time kernel

126s

Max time network

131s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e3629c723403238a0ac3e45314dc4cd0_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe N/A
N/A N/A C:\Windows\www.hmhk.cn.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\e3629c723403238a0ac3e45314dc4cd0_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\www.hmhk.cn.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe N/A
File created C:\Windows\www.hmhk.cn.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\www.hmhk.cn.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\www.hmhk.cn.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e3629c723403238a0ac3e45314dc4cd0_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e3629c723403238a0ac3e45314dc4cd0_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe

C:\Windows\www.hmhk.cn.exe

C:\Windows\www.hmhk.cn.exe

C:\Program Files\Internet Explorer\IEXPLORE.EXE

"C:\Program Files\Internet Explorer\IEXPLORE.EXE"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 17.83.221.88.in-addr.arpa udp
GB 23.44.234.16:80 tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 pcaa.3322.org udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 150.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 pcaa.3322.org udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 pcaa.3322.org udp
US 8.8.8.8:53 pcaa.3322.org udp

Files

memory/2672-0-0x0000000001000000-0x000000000112C000-memory.dmp

memory/2672-1-0x0000000000660000-0x00000000006B0000-memory.dmp

memory/2672-2-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

memory/2672-3-0x0000000000650000-0x0000000000651000-memory.dmp

memory/2672-4-0x0000000000640000-0x0000000000641000-memory.dmp

memory/2672-5-0x0000000000A60000-0x0000000000A61000-memory.dmp

memory/2672-6-0x0000000000A70000-0x0000000000A71000-memory.dmp

memory/2672-8-0x0000000000A80000-0x0000000000A81000-memory.dmp

memory/2672-7-0x0000000000AB0000-0x0000000000AB1000-memory.dmp

memory/2672-10-0x0000000000A50000-0x0000000000A51000-memory.dmp

memory/2672-9-0x00000000029D0000-0x00000000029D1000-memory.dmp

memory/2672-14-0x0000000000C60000-0x0000000000C61000-memory.dmp

memory/2672-11-0x00000000029C0000-0x00000000029C1000-memory.dmp

memory/2672-15-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

memory/2672-17-0x0000000000C20000-0x0000000000C21000-memory.dmp

memory/2672-16-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

memory/2672-18-0x0000000000C30000-0x0000000000C31000-memory.dmp

memory/2672-19-0x0000000000C70000-0x0000000000C71000-memory.dmp

memory/2672-20-0x0000000000C40000-0x0000000000C41000-memory.dmp

memory/2672-21-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

memory/2672-22-0x0000000000CA0000-0x0000000000CA1000-memory.dmp

memory/2672-23-0x0000000000C90000-0x0000000000C91000-memory.dmp

memory/2672-24-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

memory/2672-25-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

memory/2672-26-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

memory/2672-27-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

memory/2672-28-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe

MD5 382877fe1393c849a0d865a84f76f87e
SHA1 0039e16007054af463b3c191850a1d77a24c4853
SHA256 efbfd5a449f7a4a6bbdd093e12f673fcaafbe4d81c51ec2dbbf0210f57e37c5c
SHA512 f6b43182c21fa84cdb2908b116f7b742ef502f9446ec359925f047079697bbd4fb3bfa47fd3a071912af5669cbdb11ef2b19a39d5ed4b510c425a223579ccdef

memory/1000-32-0x0000000000400000-0x00000000004CF200-memory.dmp

memory/1000-33-0x00000000007A0000-0x00000000007A1000-memory.dmp

memory/2408-37-0x0000000000400000-0x00000000004CF200-memory.dmp

memory/2408-39-0x0000000000630000-0x0000000000631000-memory.dmp

memory/1000-40-0x0000000000400000-0x00000000004CF200-memory.dmp

memory/2672-41-0x0000000001000000-0x000000000112C000-memory.dmp

memory/2672-42-0x0000000000660000-0x00000000006B0000-memory.dmp

memory/2408-43-0x0000000000400000-0x00000000004CF200-memory.dmp

memory/2408-44-0x0000000000630000-0x0000000000631000-memory.dmp