Malware Analysis Report

2025-01-18 16:42

Sample ID 241215-qvjx8axlfm
Target f43d4610e84b7c370096eef673d6f408_JaffaCakes118
SHA256 1ddf8a153a5b8714ea046590303f1297c6f3cf02ff43b183c932f81de23f2704
Tags
isrstealer discovery spyware stealer 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

1ddf8a153a5b8714ea046590303f1297c6f3cf02ff43b183c932f81de23f2704

Threat Level: Known bad

The file f43d4610e84b7c370096eef673d6f408_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

isrstealer discovery spyware stealer trojan

ISR Stealer

Isrstealer family

ISR Stealer payload

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-15 13:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-15 13:34

Reported

2024-12-15 13:37

Platform

win7-20240729-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe"

Signatures

ISR Stealer

trojan stealer isrstealer

ISR Stealer payload

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

Isrstealer family

isrstealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

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\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1384 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 1384 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 1384 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 1384 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 1384 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 1384 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 1384 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 1384 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 demon2424.site88.net udp

Files

memory/1968-24-0x0000000000400000-0x0000000000590000-memory.dmp

memory/1968-14-0x0000000000400000-0x0000000000590000-memory.dmp

memory/1968-44-0x0000000000400000-0x0000000000590000-memory.dmp

memory/1968-38-0x0000000000400000-0x0000000000590000-memory.dmp

memory/1968-48-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1968-49-0x0000000000400000-0x0000000000590000-memory.dmp

memory/1968-50-0x0000000000400000-0x0000000000590000-memory.dmp

memory/1968-51-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-15 13:34

Reported

2024-12-15 13:37

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe"

Signatures

ISR Stealer

trojan stealer isrstealer

ISR Stealer payload

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

Isrstealer family

isrstealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

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\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5056 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 5056 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 5056 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 5056 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 5056 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 5056 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 5056 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe
PID 5056 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f43d4610e84b7c370096eef673d6f408_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 demon2424.site88.net udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/2316-2-0x0000000000400000-0x00000000005A0000-memory.dmp

memory/2316-4-0x0000000000400000-0x00000000005A0000-memory.dmp

memory/2316-7-0x0000000000400000-0x00000000005A0000-memory.dmp

memory/2316-8-0x0000000000400000-0x0000000000414000-memory.dmp