Malware Analysis Report

2025-01-18 12:39

Sample ID 240403-2fva7aeg5x
Target a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118
SHA256 b877e6f41d83c546f056fa7f88b5f323d944616a9919025e71971d034b56b592
Tags
formbook fzsg rat spyware stealer trojan
score
10/10

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 Overview

score
10/10

SHA256

b877e6f41d83c546f056fa7f88b5f323d944616a9919025e71971d034b56b592

Threat Level: Known bad

The file a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

formbook fzsg rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-03 22:31

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-03 22:31

Reported

2024-04-03 22:34

Platform

win7-20240221-en

Max time kernel

120s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2956 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe
PID 2956 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe
PID 2956 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe
PID 2956 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe
PID 2956 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe
PID 2956 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe
PID 2956 wrote to memory of 2604 N/A C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe"

Network

N/A

Files

memory/2956-0-0x0000000000130000-0x00000000001BE000-memory.dmp

memory/2956-1-0x0000000073CB0000-0x000000007439E000-memory.dmp

memory/2956-2-0x0000000004D70000-0x0000000004DB0000-memory.dmp

memory/2956-3-0x00000000004B0000-0x00000000004BA000-memory.dmp

memory/2956-4-0x0000000073CB0000-0x000000007439E000-memory.dmp

memory/2956-5-0x0000000004D70000-0x0000000004DB0000-memory.dmp

memory/2956-6-0x0000000005740000-0x00000000057BC000-memory.dmp

memory/2604-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2604-9-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2604-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2604-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2956-14-0x0000000073CB0000-0x000000007439E000-memory.dmp

memory/2604-15-0x0000000000AA0000-0x0000000000DA3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-03 22:31

Reported

2024-04-03 22:34

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Processes

C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a86dedf95d0d7a02c577ea6333686a47_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
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 8.8.8.8:53 210.108.222.173.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 226.108.222.173.in-addr.arpa udp
US 8.8.8.8:53 90.65.42.20.in-addr.arpa udp

Files

memory/2892-0-0x0000000000BD0000-0x0000000000C5E000-memory.dmp

memory/2892-1-0x0000000074650000-0x0000000074E00000-memory.dmp

memory/2892-2-0x0000000005C40000-0x00000000061E4000-memory.dmp

memory/2892-3-0x00000000055E0000-0x0000000005672000-memory.dmp

memory/2892-4-0x0000000005880000-0x0000000005890000-memory.dmp

memory/2892-5-0x00000000057A0000-0x00000000057AA000-memory.dmp

memory/2892-6-0x0000000006EC0000-0x0000000006ECA000-memory.dmp

memory/2892-7-0x0000000074650000-0x0000000074E00000-memory.dmp

memory/2892-8-0x0000000005880000-0x0000000005890000-memory.dmp

memory/2892-9-0x0000000006ED0000-0x0000000006F6C000-memory.dmp

memory/2892-10-0x0000000006FF0000-0x000000000706C000-memory.dmp

memory/3420-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2892-13-0x0000000074650000-0x0000000074E00000-memory.dmp

memory/3420-14-0x0000000001760000-0x0000000001AAA000-memory.dmp

memory/3420-15-0x0000000001760000-0x0000000001AAA000-memory.dmp