Malware Analysis Report

2025-01-22 17:56

Sample ID 241009-efqlnstamp
Target 2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118
SHA256 477d9deb21692b80a454f0a9794d0fafc13b5d5e60b271ef46787d9843f3f2df
Tags
gozi banker bootkit discovery isfb persistence trojan
score
10/10

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
10/10

SHA256

477d9deb21692b80a454f0a9794d0fafc13b5d5e60b271ef46787d9843f3f2df

Threat Level: Known bad

The file 2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

gozi banker bootkit discovery isfb persistence trojan

Gozi

Deletes itself

Writes to the Master Boot Record (MBR)

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Views/modifies file attributes

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-09 03:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-09 03:53

Reported

2024-10-09 12:52

Platform

win7-20240704-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118.exe"

Signatures

Gozi

banker trojan gozi

Deletes itself

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

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PHYSICALDRIVE0 C:\Users\Admin\AppData\Local\Temp\2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118.exe N/A

Enumerates physical storage devices

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\2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118.exe N/A
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:\Windows\SysWOW64\attrib.exe N/A

Views/modifies file attributes

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

Processes

C:\Users\Admin\AppData\Local\Temp\2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\C2B3.bat" "C:\Users\Admin\AppData\Local\Temp\2A59D4~1.EXE""

C:\Windows\SysWOW64\attrib.exe

attrib -r -s -h "C:\Users\Admin\AppData\Local\Temp\2A59D4~1.EXE"

Network

N/A

Files

memory/2564-0-0x0000000000500000-0x0000000000501000-memory.dmp

memory/2564-1-0x0000000000400000-0x000000000043A000-memory.dmp

memory/2564-2-0x00000000007B0000-0x00000000007B5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\C2B3.bat

MD5 477dac8dc05befd3ab15a82d4f4b5918
SHA1 7e5de667de9cd22831d8f66ae52461d6b1a5e4a4
SHA256 c62bb95c058bceed81e85e37508034d81619506a53a22167f4d720410880e7c6
SHA512 29bcc9ed4a35031779d308624cbc9e1b813678fea8d348c21e404e9746b5b5ec699aac35a12b537a572f9221810b45ce27ec46c7600c3fed35bee6787eb5b113

memory/2564-15-0x0000000000400000-0x00000000004B1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-09 03:53

Reported

2024-10-09 12:52

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118.exe"

Signatures

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\2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2a59d4ed30a0353f69cce57ad83831ea_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5004 -ip 5004

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 440

Network

Country Destination Domain Proto
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/5004-0-0x0000000000650000-0x0000000000651000-memory.dmp