Malware Analysis Report

2024-12-07 14:33

Sample ID 241014-txps2athqb
Target 4317e505645971e98ff23f059052195f_JaffaCakes118
SHA256 a8514161bf586530ec852a7e2dbd7042e19a528a371857f43384fb8c937fd136
Tags
discovery exploit
score
8/10

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
8/10

SHA256

a8514161bf586530ec852a7e2dbd7042e19a528a371857f43384fb8c937fd136

Threat Level: Likely malicious

The file 4317e505645971e98ff23f059052195f_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

discovery exploit

Possible privilege escalation attempt

Loads dropped DLL

Modifies file permissions

Deletes itself

Drops file in System32 directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-14 16:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-14 16:26

Reported

2024-10-14 16:29

Platform

win7-20240903-en

Max time kernel

121s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe"

Signatures

Possible privilege escalation attempt

exploit
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\takeown.exe N/A
N/A N/A C:\Windows\SysWOW64\icacls.exe N/A

Deletes itself

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

Loads dropped DLL

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

Modifies file permissions

discovery
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\takeown.exe N/A
N/A N/A C:\Windows\SysWOW64\icacls.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\imm32.dll C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\ole.dll C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\imm32.dll.log C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\imm32.dll.log C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\takeown.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\icacls.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\SysWOW64\takeown.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2668 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\takeown.exe
PID 2668 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\takeown.exe
PID 2668 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\takeown.exe
PID 2668 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\takeown.exe
PID 2668 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\icacls.exe
PID 2668 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\icacls.exe
PID 2668 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\icacls.exe
PID 2668 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\icacls.exe
PID 2668 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2668 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2668 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2668 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe"

C:\Windows\SysWOW64\takeown.exe

takeown /F C:\Windows\system32\imm32.dll

C:\Windows\SysWOW64\icacls.exe

icacls C:\Windows\system32\imm32.dll /grant administrators:f

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c c:\delf770280.bat

Network

N/A

Files

C:\Windows\SysWOW64\IMM32.DLL

MD5 154652aaa00d9095c2f5da893f6b9400
SHA1 051db9a7c1bcaec5362d0df7e230672ed54e28dd
SHA256 1a248203fc34088ac38b95c68d014565a5899d5cd61f961ffa547d9b82e9deb0
SHA512 238bfa0518db931953a3ccd76d1c12a529ee06855ecd64ce8a61025be0a2d8a60596b794d8a48f8d32943daa0a981dfc728cd5c00e2750f8d4a56feea60e28e9

memory/2880-11-0x0000000074A20000-0x0000000074A90000-memory.dmp

C:\Windows\SysWOW64\ole.dll

MD5 16c1f3a981f4c3744d3fa9d51241f52a
SHA1 909ee550ba923191a6c6feb32b9f5bb67d57db8a
SHA256 715dd800c05b8b7970ceb13d6a7acbd98b19cdada5fdd45669c54a6df94b7eaf
SHA512 8d18e5ce4515d89424727293d584c8032f50a744537411ccfa6642cb55af6097ac33d75cbb2f78f7e3dccc0d61e4226ef67c0758e9e9a6d4879854b76a6a339e

\??\c:\delf770280.bat

MD5 501402fc796f259036ebf97a02f7724c
SHA1 b2006c45f3b3d690cf637b75f8dbed4d187bec17
SHA256 4dd162a736d9175bf3240d76d3bd03844e3aa9a610a1bf64bcc3fc74ebec42ea
SHA512 479f04e2a8169a4bd80244293fed3ed58b170299c71c886d996355d64cd18a604b0172d25527bb34dd111034feb701796222495193e4b9b4cc0aa27afe3b8df3

memory/2880-15-0x0000000074A20000-0x0000000074A90000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-14 16:26

Reported

2024-10-14 16:28

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe"

Signatures

Possible privilege escalation attempt

exploit
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\takeown.exe N/A
N/A N/A C:\Windows\SysWOW64\icacls.exe N/A

Modifies file permissions

discovery
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\takeown.exe N/A
N/A N/A C:\Windows\SysWOW64\icacls.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\imm32.dll.log C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\imm32.dll C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\ole.dll C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\imm32.dll.log C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\takeown.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\icacls.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\SysWOW64\takeown.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4317e505645971e98ff23f059052195f_JaffaCakes118.exe"

C:\Windows\SysWOW64\takeown.exe

takeown /F C:\Windows\system32\imm32.dll

C:\Windows\SysWOW64\icacls.exe

icacls C:\Windows\system32\imm32.dll /grant administrators:f

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c c:\dele57a3a2.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 71.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 68.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

C:\Users\Admin\AppData\Local\Temp\txt.com

MD5 c0c4e6357331bbb7483ef6f540c10c31
SHA1 339e493bee115b6f3188b0df92ebd38b1bacdcf9
SHA256 90769724f86abf152d49d4bff73210cd4d74215666c5ffc408a859ee4c0454bb
SHA512 c248f187fe7c1c301da7d4266d86b24347d9b9aeaed14d1adde92ad55df760397149c0e83a6592be4862b364ff77e092bef05331d1497a62d3206f9bde61e2cf

memory/2732-9-0x0000000076190000-0x00000000761B5000-memory.dmp

\??\c:\dele57a3a2.bat

MD5 07940c22c663cf25cba9054fe6fae83d
SHA1 ee184fff193574a63c1c9bbdeb7725b98a2a8f05
SHA256 291bf0668d825906cb434b8d16c2868625471479a820bb1a873f4fa1de25b4d0
SHA512 258088f88f600088b032a7022514c2c17c77cc15ebb9c49488719e79bc3bd0162939d339a8a683b12c5ceeeb7d6ba0aae1170d7404e220a77e83c4f3c7f51ff2