Malware Analysis Report

2024-09-11 10:21

Sample ID 240602-q5fnjsea6v
Target 8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118
SHA256 bb93d16760825fb1ef7127af898b6b1e0be7e9829d0bffae4b7c0d2bdec58101
Tags
limerat persistence rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

bb93d16760825fb1ef7127af898b6b1e0be7e9829d0bffae4b7c0d2bdec58101

Threat Level: Known bad

The file 8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

limerat persistence rat

LimeRAT

Adds Run key to start application

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-02 13:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-02 13:50

Reported

2024-06-02 13:52

Platform

win7-20240508-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe"

Signatures

LimeRAT

rat limerat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Run\iso = "C:\\Users\\Admin\\iso.exe" C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1636 set thread context of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1636 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 172.67.19.24:443 pastebin.com tcp

Files

memory/1636-0-0x000000007464E000-0x000000007464F000-memory.dmp

memory/1636-1-0x00000000010A0000-0x000000000112A000-memory.dmp

memory/1636-2-0x00000000004F0000-0x0000000000522000-memory.dmp

memory/1636-3-0x0000000000730000-0x0000000000756000-memory.dmp

memory/1636-5-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-6-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-14-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-34-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-56-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-54-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-52-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-50-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-48-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-46-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-44-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-42-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-58-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-40-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-38-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-36-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-32-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-30-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-28-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-26-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-24-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-22-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-20-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-18-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-16-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-12-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-10-0x0000000000730000-0x000000000074F000-memory.dmp

memory/1636-8-0x0000000000730000-0x000000000074F000-memory.dmp

memory/2652-64-0x0000000000400000-0x000000000040C000-memory.dmp

memory/2652-62-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2652-61-0x0000000000400000-0x000000000040C000-memory.dmp

memory/2652-60-0x0000000000400000-0x000000000040C000-memory.dmp

memory/2652-59-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1636-69-0x0000000074640000-0x0000000074D2E000-memory.dmp

memory/2652-68-0x0000000000400000-0x000000000040C000-memory.dmp

memory/2652-67-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1636-70-0x0000000074640000-0x0000000074D2E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-02 13:50

Reported

2024-06-02 13:53

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe"

Signatures

LimeRAT

rat limerat

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\iso = "C:\\Users\\Admin\\iso.exe" C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2944 set thread context of 2392 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2944 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2944 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2944 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2944 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2944 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2944 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2944 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8e4bee2b8683f28b25140d3cb1e81761_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.3.235:443 pastebin.com tcp
US 8.8.8.8:53 235.3.20.104.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 99.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/2944-0-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

memory/2944-1-0x0000000000F50000-0x0000000000FDA000-memory.dmp

memory/2944-2-0x0000000005890000-0x00000000058C2000-memory.dmp

memory/2944-3-0x00000000058C0000-0x00000000058E6000-memory.dmp

memory/2944-36-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-34-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-54-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-59-0x00000000059E0000-0x0000000005A7C000-memory.dmp

memory/2392-60-0x0000000000400000-0x000000000040C000-memory.dmp

memory/2944-62-0x0000000074DB0000-0x0000000075560000-memory.dmp

memory/2944-52-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2392-63-0x0000000074DB0000-0x0000000075560000-memory.dmp

memory/2944-48-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-46-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-44-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-42-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-40-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-38-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-32-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-29-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-27-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-24-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-22-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-20-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-18-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-16-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-14-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-12-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-10-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-8-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-58-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-56-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-50-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-31-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-6-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2944-5-0x00000000058C0000-0x00000000058DF000-memory.dmp

memory/2392-64-0x0000000004DE0000-0x0000000004E46000-memory.dmp

memory/2392-65-0x0000000074DB0000-0x0000000075560000-memory.dmp

memory/2392-66-0x0000000005B10000-0x00000000060B4000-memory.dmp

memory/2392-67-0x0000000006160000-0x00000000061F2000-memory.dmp

memory/2944-68-0x0000000074DB0000-0x0000000075560000-memory.dmp

memory/2392-69-0x0000000074DB0000-0x0000000075560000-memory.dmp

memory/2392-70-0x0000000074DB0000-0x0000000075560000-memory.dmp