Analysis Overview
SHA256
e982c63be9c5eb7defc0ddbf72d27a5e6ea2fe2c050777595a831470ca9aa31e
Threat Level: Known bad
The file 57ca391bdad17bf09e724a84f970c0fc_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Xloader
Xloader payload
Deletes itself
Loads dropped DLL
Suspicious use of SetThreadContext
Program crash
Enumerates physical storage devices
Unsigned PE
NSIS installer
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-31 15:54
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| 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
2024-03-31 15:54
Reported
2024-03-31 15:57
Platform
win7-20240221-en
Max time kernel
147s
Max time network
127s
Command Line
Signatures
Xloader
Xloader 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 |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2868 set thread context of 2532 | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe |
| PID 2532 set thread context of 1196 | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | C:\Windows\Explorer.EXE |
| PID 2988 set thread context of 1196 | N/A | C:\Windows\SysWOW64\help.exe | C:\Windows\Explorer.EXE |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\help.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\help.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\help.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\nsy6633.tmp\gyalquzbu.dll
| MD5 | a8caa6d267951ad22e835233b5e50c46 |
| SHA1 | 45c722c5958d99727a95d30eaa3032203d1f4ab2 |
| SHA256 | db7b70b0734285b8d9a1f3617e55603b0cb649d9bf0b7fbf8988c44e684f4e76 |
| SHA512 | 9ee74bf576554210f8923dda8aa28f6dc7f3c5aa52da7b48a94beaf56cb4e27f1c3d0387cc9116e467631bc13c0e743341129bffa84b9db16ace1248a53b4cd7 |
memory/2532-8-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2532-9-0x0000000000950000-0x0000000000C53000-memory.dmp
memory/2532-12-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1196-11-0x0000000003890000-0x0000000003990000-memory.dmp
memory/2532-13-0x00000000003D0000-0x00000000003E1000-memory.dmp
memory/1196-14-0x0000000007170000-0x00000000072AD000-memory.dmp
memory/2988-18-0x0000000000950000-0x0000000000956000-memory.dmp
memory/2988-15-0x0000000000950000-0x0000000000956000-memory.dmp
memory/2988-19-0x0000000000080000-0x00000000000A9000-memory.dmp
memory/2988-20-0x0000000000960000-0x0000000000C63000-memory.dmp
memory/2988-21-0x0000000000080000-0x00000000000A9000-memory.dmp
memory/2988-23-0x0000000000350000-0x00000000003E0000-memory.dmp
memory/1196-25-0x0000000007170000-0x00000000072AD000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-31 15:54
Reported
2024-03-31 15:57
Platform
win10v2004-20240226-en
Max time kernel
151s
Max time network
156s
Command Line
Signatures
Xloader
Xloader 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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4280 set thread context of 1096 | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe |
| PID 1096 set thread context of 3380 | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | C:\Windows\Explorer.EXE |
| PID 4340 set thread context of 3380 | N/A | C:\Windows\SysWOW64\cmstp.exe | C:\Windows\Explorer.EXE |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmstp.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmstp.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\cmstp.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.anadolu.academy | udp |
| US | 8.8.8.8:53 | www.arroundworld.com | udp |
| US | 8.8.8.8:53 | www.newstodayupdate.com | udp |
| IN | 46.28.45.69:80 | www.newstodayupdate.com | tcp |
| US | 8.8.8.8:53 | 69.45.28.46.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.philme.net | udp |
| US | 8.8.8.8:53 | www.visionmark.net | udp |
| US | 8.8.8.8:53 | 218.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.bjmobi.com | udp |
| US | 8.8.8.8:53 | www.sunshinefamilysupport.com | udp |
| US | 8.8.8.8:53 | www.roleconstructora.com | udp |
| US | 8.8.8.8:53 | www.khomayphotocopy.club | udp |
| US | 8.8.8.8:53 | www.andrewfjohnston.com | udp |
| US | 208.91.197.27:80 | www.andrewfjohnston.com | tcp |
| US | 8.8.8.8:53 | 27.197.91.208.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 66.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.chinaopedia.com | udp |
| HK | 156.245.88.8:80 | www.chinaopedia.com | tcp |
| US | 8.8.8.8:53 | 8.88.245.156.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.thesewhitevvalls.com | udp |
| US | 8.8.8.8:53 | www.bedrijfs-kledingshop.com | udp |
| NL | 37.97.254.27:80 | www.bedrijfs-kledingshop.com | tcp |
| US | 8.8.8.8:53 | 27.254.97.37.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.andajzx.com | udp |
| US | 8.8.8.8:53 | www.unasolucioendesa.com | udp |
| US | 45.60.13.133:80 | www.unasolucioendesa.com | tcp |
| US | 8.8.8.8:53 | 133.13.60.45.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.starsspell.com | udp |
| US | 8.8.8.8:53 | www.bjmobi.com | udp |
| US | 8.8.8.8:53 | www.hsvfingerprinting.com | udp |
| US | 162.144.181.154:80 | www.hsvfingerprinting.com | tcp |
| US | 8.8.8.8:53 | 154.181.144.162.in-addr.arpa | udp |
| IN | 46.28.45.69:80 | www.newstodayupdate.com | tcp |
| US | 8.8.8.8:53 | 14.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.metalworkingadditives.online | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsu77D1.tmp\gyalquzbu.dll
| MD5 | a8caa6d267951ad22e835233b5e50c46 |
| SHA1 | 45c722c5958d99727a95d30eaa3032203d1f4ab2 |
| SHA256 | db7b70b0734285b8d9a1f3617e55603b0cb649d9bf0b7fbf8988c44e684f4e76 |
| SHA512 | 9ee74bf576554210f8923dda8aa28f6dc7f3c5aa52da7b48a94beaf56cb4e27f1c3d0387cc9116e467631bc13c0e743341129bffa84b9db16ace1248a53b4cd7 |
memory/1096-8-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1096-9-0x0000000000B00000-0x0000000000E4A000-memory.dmp
memory/1096-11-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1096-12-0x0000000000600000-0x0000000000611000-memory.dmp
memory/3380-13-0x00000000091B0000-0x0000000009329000-memory.dmp
memory/4340-16-0x0000000000680000-0x0000000000696000-memory.dmp
memory/4340-17-0x0000000000680000-0x0000000000696000-memory.dmp
memory/4340-18-0x00000000004E0000-0x0000000000509000-memory.dmp
memory/4340-19-0x00000000023F0000-0x000000000273A000-memory.dmp
memory/4340-20-0x00000000004E0000-0x0000000000509000-memory.dmp
memory/4340-22-0x0000000002290000-0x0000000002320000-memory.dmp
memory/3380-23-0x00000000091B0000-0x0000000009329000-memory.dmp
memory/3380-26-0x0000000003430000-0x0000000003513000-memory.dmp
memory/3380-27-0x0000000003430000-0x0000000003513000-memory.dmp
memory/3380-30-0x0000000003430000-0x0000000003513000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-03-31 15:54
Reported
2024-03-31 15:57
Platform
win7-20240221-en
Max time kernel
122s
Max time network
123s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\gyalquzbu.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\gyalquzbu.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1936 -s 248
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-03-31 15:54
Reported
2024-03-31 15:57
Platform
win10v2004-20231215-en
Max time kernel
92s
Max time network
123s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3676 wrote to memory of 4716 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3676 wrote to memory of 4716 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3676 wrote to memory of 4716 | 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\gyalquzbu.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\gyalquzbu.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4716 -ip 4716
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4716 -s 740
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 219.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 66.134.221.88.in-addr.arpa | udp |