Malware Analysis Report

2025-01-02 03:43

Sample ID 240509-r6yfesac26
Target 2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118
SHA256 0340b84c0a3ca20f9c09e1a81c9e9cb561607e491fca652b07a196cd40138648
Tags
remcos persistence rat
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

0340b84c0a3ca20f9c09e1a81c9e9cb561607e491fca652b07a196cd40138648

Threat Level: Known bad

The file 2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

remcos persistence rat

Remcos

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious use of SendNotifyMessage

Suspicious use of UnmapMainImage

Suspicious use of FindShellTrayWindow

Runs ping.exe

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-09 14:48

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 14:48

Reported

2024-05-09 14:51

Platform

win7-20240419-en

Max time kernel

149s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe"

Signatures

Remcos

rat remcos

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\KLGmkG = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\"" C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\KLGmkG = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\"" C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2764 set thread context of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe

Enumerates physical storage devices

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2288 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2288 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2288 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2288 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2288 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2288 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2288 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2848 wrote to memory of 2684 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2848 wrote to memory of 2684 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2848 wrote to memory of 2684 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2848 wrote to memory of 2684 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2848 wrote to memory of 2764 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe
PID 2848 wrote to memory of 2764 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe
PID 2848 wrote to memory of 2764 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe
PID 2848 wrote to memory of 2764 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 2764 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "

C:\Windows\SysWOW64\PING.EXE

PING 127.0.0.1 -n 2

C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe

"C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 civita2.no-ip.biz udp

Files

memory/2288-2-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2288-6-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2288-7-0x0000000072940000-0x0000000072A60000-memory.dmp

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

MD5 9e63d0d86376e45cfd856537efb86171
SHA1 566c68ff9c1f2fa5a75207258b1092447e81fcce
SHA256 6f6f2f859525c5c8668364d9feb6da278eee5ed59580a5184e8dda65832cce7d
SHA512 d5359f1a3701a010c3fb90faac3da226881c6777dd7e1bfaf475cef0f18f6dfab9f317ac3431daa77869b2872f5a5c9a16cad10bc51a5d127219a095df7ccb98

memory/2288-15-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2288-16-0x0000000072940000-0x0000000072A60000-memory.dmp

\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe

MD5 2a79d2a8eebe3cbbdfaa7b61d72cb866
SHA1 6c84f09929337bb41549dde77d982ff2c000c3b7
SHA256 0340b84c0a3ca20f9c09e1a81c9e9cb561607e491fca652b07a196cd40138648
SHA512 13e1873f5e0257ae9662fa3c4b9bd162823a0d112c5538cbcd6c84898338b4ee2c6a3e03d8140301594b7c585f3aeff0e2342801a4716e32feb9d18e53da805d

memory/2764-24-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2764-25-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2764-28-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2832-34-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2832-45-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2764-43-0x0000000072940000-0x0000000072A93000-memory.dmp

memory/2832-42-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2832-40-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2832-38-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2832-36-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2832-32-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2832-30-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2832-48-0x0000000000400000-0x000000000041C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-09 14:48

Reported

2024-05-09 14:51

Platform

win10v2004-20240226-en

Max time kernel

151s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe"

Signatures

Remcos

rat remcos

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KLGmkG = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\"" C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KLGmkG = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\"" C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4184 set thread context of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe

Enumerates physical storage devices

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4888 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 4888 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 4888 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 4596 wrote to memory of 4092 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 4596 wrote to memory of 4092 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 4596 wrote to memory of 4092 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 4596 wrote to memory of 4184 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe
PID 4596 wrote to memory of 4184 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe
PID 4596 wrote to memory of 4184 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe
PID 4184 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 4184 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 4184 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 4184 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 4184 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 4184 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 4184 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 4184 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 4184 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe
PID 4184 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2a79d2a8eebe3cbbdfaa7b61d72cb866_JaffaCakes118.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4060 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "

C:\Windows\SysWOW64\PING.EXE

PING 127.0.0.1 -n 2

C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe

"C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.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 79.190.18.2.in-addr.arpa udp
GB 142.250.187.234:443 tcp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 40.173.79.40.in-addr.arpa udp

Files

memory/4888-2-0x0000000077981000-0x0000000077AA1000-memory.dmp

memory/4888-5-0x0000000000400000-0x000000000041C000-memory.dmp

memory/4888-10-0x0000000000400000-0x0000000000434000-memory.dmp

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

MD5 9e63d0d86376e45cfd856537efb86171
SHA1 566c68ff9c1f2fa5a75207258b1092447e81fcce
SHA256 6f6f2f859525c5c8668364d9feb6da278eee5ed59580a5184e8dda65832cce7d
SHA512 d5359f1a3701a010c3fb90faac3da226881c6777dd7e1bfaf475cef0f18f6dfab9f317ac3431daa77869b2872f5a5c9a16cad10bc51a5d127219a095df7ccb98

memory/4888-14-0x0000000000400000-0x000000000041C000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe

MD5 2a79d2a8eebe3cbbdfaa7b61d72cb866
SHA1 6c84f09929337bb41549dde77d982ff2c000c3b7
SHA256 0340b84c0a3ca20f9c09e1a81c9e9cb561607e491fca652b07a196cd40138648
SHA512 13e1873f5e0257ae9662fa3c4b9bd162823a0d112c5538cbcd6c84898338b4ee2c6a3e03d8140301594b7c585f3aeff0e2342801a4716e32feb9d18e53da805d

memory/4184-21-0x0000000000400000-0x0000000000434000-memory.dmp

memory/4184-23-0x0000000000400000-0x000000000041C000-memory.dmp

memory/4184-27-0x0000000000400000-0x0000000000434000-memory.dmp

memory/4184-26-0x0000000000400000-0x0000000000434000-memory.dmp

memory/4184-29-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2408-30-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2408-33-0x0000000000400000-0x000000000041C000-memory.dmp

memory/4184-37-0x0000000000400000-0x0000000000434000-memory.dmp

memory/4184-38-0x0000000000400000-0x0000000000434000-memory.dmp

memory/4184-39-0x0000000000400000-0x0000000000434000-memory.dmp