Analysis Overview
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
Enterprise Matrix V15
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
| 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
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-885BL.tmp\47ab73c17081b24116ded175089da993.tmp | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
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
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
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-6A1CI.tmp\47ab73c17081b24116ded175089da993.tmp | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1280 wrote to memory of 2724 | N/A | C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe |
| PID 1280 wrote to memory of 2724 | N/A | C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe |
| PID 1280 wrote to memory of 2724 | N/A | C:\Users\Admin\AppData\Local\Temp\91dadfbf6f8a150adab595616a00477a_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\47ab73c17081b24116ded175089da993.exe |
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
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
Files
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
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 |