Malware Analysis Report

2025-01-17 23:17

Sample ID 240603-p4ty4sge46
Target 91dadfbf6f8a150adab595616a00477a_JaffaCakes118
SHA256 174edf542fd9b9d840c59fbcb6b1917c6f788859511bc585f6a06c8f3e50648d
Tags
score
7/10

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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

174edf542fd9b9d840c59fbcb6b1917c6f788859511bc585f6a06c8f3e50648d

Threat Level: Shows suspicious behavior

The file 91dadfbf6f8a150adab595616a00477a_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary


Executes dropped EXE

Loads dropped DLL

Program crash

Unsigned PE

Enumerates physical storage devices

NSIS installer

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-03 12:53

Signatures

Unsigned PE

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

NSIS installer

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-03 12:53

Reported

2024-06-03 12:56

Platform

win7-20240220-en

Max time kernel

120s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe"

Signatures

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe

C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe

C:\Users\Admin\AppData\Local\Temp\is-885BL.tmp\47ab73c17081b24116ded175089da993.tmp

"C:\Users\Admin\AppData\Local\Temp\is-885BL.tmp\47ab73c17081b24116ded175089da993.tmp" /SL5="$70120,705874,56832,C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe"

Network

N/A

Files

\Users\Admin\AppData\Local\Temp\nstEC.tmp\nxs.dll

MD5 8ca09b6200ffa05b54c6672d855beb4a
SHA1 daa16fe49c8b2250e9d2383b861cda51f876de49
SHA256 033e93ad470241c92762924ccfceafb849a525e263e5d4a3dbcfc2e07a8803c3
SHA512 6ab97181ec45430888d8ad3fd411de22423e1c057833e282af085a975198338c95f7ba10b7c69f33298afc88ddd38d01ab010998fd4a8ba8abb8561796bf9f14

\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe

MD5 33553cc4afc6b22702f5275f99c10c60
SHA1 dc7103fe3de3f1f9ef781cc2092020b5e23077c5
SHA256 60ce026a07bea7265ccdbd2d4e0664858a9cc24e3f879a74f7983e60c8c10ebb
SHA512 e86f751d4c72c3c38f380932153f79428195f904a24a142a7ec8caf3b5e671686dac840f66979eb97ae57053e843822347fc7d5f3d464eb3325b8e47964c6d78

memory/2888-12-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2888-16-0x0000000000401000-0x000000000040B000-memory.dmp

\Users\Admin\AppData\Local\Temp\is-885BL.tmp\47ab73c17081b24116ded175089da993.tmp

MD5 4c275cff83d25bd055efc3833755fe28
SHA1 6625ab013964c32d6adcfeda1c70723e31d400e0
SHA256 a851065a80f432180a510a37557220ff4054a47e8a5348e2796803c2ec9bef40
SHA512 1d892b4087b28d79814eaae797899d0341e1d538ac87dcc4569488ec03daf3d8b09132a6afdb5547844f06dc9d28b8aee645d70bf341511e6de551620d18ed66

memory/2888-24-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 12:53

Reported

2024-06-03 12:56

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe

C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe

C:\Users\Admin\AppData\Local\Temp\is-6A1CI.tmp\47ab73c17081b24116ded175089da993.tmp

"C:\Users\Admin\AppData\Local\Temp\is-6A1CI.tmp\47ab73c17081b24116ded175089da993.tmp" /SL5="$B0052,705874,56832,C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2724 -ip 2724

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2724 -s 492

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 147.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 138.201.86.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.173.189.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nst424A.tmp\nxs.dll

MD5 8ca09b6200ffa05b54c6672d855beb4a
SHA1 daa16fe49c8b2250e9d2383b861cda51f876de49
SHA256 033e93ad470241c92762924ccfceafb849a525e263e5d4a3dbcfc2e07a8803c3
SHA512 6ab97181ec45430888d8ad3fd411de22423e1c057833e282af085a975198338c95f7ba10b7c69f33298afc88ddd38d01ab010998fd4a8ba8abb8561796bf9f14

C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe

MD5 33553cc4afc6b22702f5275f99c10c60
SHA1 dc7103fe3de3f1f9ef781cc2092020b5e23077c5
SHA256 60ce026a07bea7265ccdbd2d4e0664858a9cc24e3f879a74f7983e60c8c10ebb
SHA512 e86f751d4c72c3c38f380932153f79428195f904a24a142a7ec8caf3b5e671686dac840f66979eb97ae57053e843822347fc7d5f3d464eb3325b8e47964c6d78

memory/2724-13-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2724-16-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-6A1CI.tmp\47ab73c17081b24116ded175089da993.tmp

MD5 4c275cff83d25bd055efc3833755fe28
SHA1 6625ab013964c32d6adcfeda1c70723e31d400e0
SHA256 a851065a80f432180a510a37557220ff4054a47e8a5348e2796803c2ec9bef40
SHA512 1d892b4087b28d79814eaae797899d0341e1d538ac87dcc4569488ec03daf3d8b09132a6afdb5547844f06dc9d28b8aee645d70bf341511e6de551620d18ed66

memory/2724-20-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-03 12:53

Reported

2024-06-03 12:56

Platform

win7-20240221-en

Max time kernel

118s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nxs.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2220 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2220 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2220 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2220 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2220 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2220 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2220 wrote to memory of 2212 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nxs.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nxs.dll,#1

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-06-03 12:53

Reported

2024-06-03 12:56

Platform

win10v2004-20240426-en

Max time kernel

95s

Max time network

104s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nxs.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3500 wrote to memory of 4164 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3500 wrote to memory of 4164 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3500 wrote to memory of 4164 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nxs.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nxs.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 152.107.17.2.in-addr.arpa udp
US 52.111.227.11:443 tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

N/A