Malware Analysis Report

2024-11-16 12:51

Sample ID 240810-spf1gsveqq
Target 8693681e0edb6961533182bef842efb1_JaffaCakes118
SHA256 ddaaa78bf62d0820d8f269045241c5abfab4f7d1f37c74f2716676546ad8afe0
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

ddaaa78bf62d0820d8f269045241c5abfab4f7d1f37c74f2716676546ad8afe0

Threat Level: Likely malicious

The file 8693681e0edb6961533182bef842efb1_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

discovery exploit

Possible privilege escalation attempt

Deletes itself

Loads dropped DLL

Modifies file permissions

Drops file in System32 directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-10 15:17

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-10 15:17

Reported

2024-08-10 15:20

Platform

win7-20240705-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_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\ole.dll C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\imm32.dll.log C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\imm32.dll.log C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\imm32.dll C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_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\8693681e0edb6961533182bef842efb1_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 behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\SysWOW64\takeown.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2056 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\takeown.exe
PID 2056 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\takeown.exe
PID 2056 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\takeown.exe
PID 2056 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\takeown.exe
PID 2056 wrote to memory of 884 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\icacls.exe
PID 2056 wrote to memory of 884 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\icacls.exe
PID 2056 wrote to memory of 884 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\icacls.exe
PID 2056 wrote to memory of 884 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\icacls.exe
PID 2056 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2056 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2056 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2056 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_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:\delf76c429.bat

Network

N/A

Files

memory/2056-8-0x0000000075190000-0x00000000751F0000-memory.dmp

C:\Windows\SysWOW64\IMM32.DLL

MD5 ba1e3e46a814431574db7af6f7890f75
SHA1 efb01c82a17adb9fa2df8097383e9d76d13016fe
SHA256 1e27b0e86226a39b1ee61fa78c4bca265a36aeed06058bf80e01e2a9a114b970
SHA512 bc78ad8101910e7a112a158e4931f935e8156e1a373fc7f9b3da936478c8f5741d7d447ccb17c8e05c38932064922c2217a1c2bb08e23815373279299a32b812

C:\Windows\SysWOW64\ole.dll

MD5 6d8635c338443690becc3802dd43ceb2
SHA1 d0017bef16b924688546620146312da511f5d957
SHA256 824e29016a4cbb495eb6f7a7e238fe3453b445367f8277f54c1b836904397e0d
SHA512 5de461a86710674bc2d3fc3124d29de0683bfa1c11b3038e127531663f88f7f737afa33de7bbd830539072fd4475d21810793579d28248abcf47a02529b2dbea

memory/2700-13-0x0000000074DB0000-0x0000000074E20000-memory.dmp

\??\c:\delf76c429.bat

MD5 4f21215eef59d7d95dbeed8e92e57a62
SHA1 ccad8f636a4cfc0a0acd3c1df336f362701f28cc
SHA256 0483289f878cf384a06ceed7a9b4d9c3db8aede4c82dcba7cfd63c39ee076b04
SHA512 cbe757c671e429297b8dd7c25fad43e7090fe048f96636cf261e83dc873509a2efbe8ff17900c8154d864fe7bcb340ea1a7c750e8c58fd90f2bae34b9ad33d8b

memory/2700-15-0x0000000074DB0000-0x0000000074E20000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-10 15:17

Reported

2024-08-10 15:20

Platform

win10v2004-20240802-en

Max time kernel

140s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_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 created C:\Windows\SysWOW64\imm32.dll.log C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\imm32.dll.log C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\imm32.dll C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\ole.dll C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_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\8693681e0edb6961533182bef842efb1_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\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\SysWOW64\takeown.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8693681e0edb6961533182bef842efb1_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:\dele5781d2.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 34.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp

Files

memory/3292-9-0x0000000076F20000-0x0000000076F45000-memory.dmp

\??\c:\dele5781d2.bat

MD5 9dc9bfdc8b4b7e2950cfc2896e0737e9
SHA1 2619f36e7069b4729c1d1f9d3c3c2c66171f449d
SHA256 91d0f4daec76eb04f7b5dff5aea2e94e9c2568941744ce582e82c0d54e6dc577
SHA512 ee69715b0f817b664621a63c8448b659dddc18833f18415d4f3070e1d427574c0de07d4b98383fde58f63fd63f147882cbab7889d794ff79e5b4eb8acf893af1