Analysis Overview
SHA256
19428f9c431fb0f8d6fbd9ca194589bacf9d9d3e475717031373b71982bea2a5
Threat Level: Known bad
The file 73fe142254abec3aeaef375f0564d40a_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Xloader
Xloader payload
Loads dropped DLL
Suspicious use of SetThreadContext
Program crash
Unsigned PE
Enumerates physical storage devices
NSIS installer
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-01 15:42
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: behavioral3
Detonation Overview
Submitted
2024-04-01 15:42
Reported
2024-04-01 15:45
Platform
win7-20240221-en
Max time kernel
147s
Max time network
119s
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 |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2940 set thread context of 2368 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2368 set thread context of 1212 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\Explorer.EXE |
| PID 2368 set thread context of 1212 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\Explorer.EXE |
| PID 2600 set thread context of 1212 | N/A | C:\Windows\SysWOW64\help.exe | C:\Windows\Explorer.EXE |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.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:\Windows\SysWOW64\rundll32.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:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#1
C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\rundll32.exe"
Network
Files
memory/2940-0-0x0000000010000000-0x000000001000B000-memory.dmp
memory/2368-1-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2368-3-0x00000000020E0000-0x00000000023E3000-memory.dmp
memory/2940-2-0x0000000010000000-0x000000001000B000-memory.dmp
memory/1212-6-0x0000000003A20000-0x0000000003B20000-memory.dmp
memory/1212-8-0x0000000006790000-0x0000000006903000-memory.dmp
memory/2368-7-0x0000000000270000-0x0000000000281000-memory.dmp
memory/2368-5-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2368-11-0x00000000002B0000-0x00000000002C1000-memory.dmp
memory/2368-10-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1212-12-0x0000000007410000-0x0000000007580000-memory.dmp
memory/2600-13-0x00000000007D0000-0x00000000007D6000-memory.dmp
memory/2600-14-0x00000000007D0000-0x00000000007D6000-memory.dmp
memory/2600-15-0x0000000000080000-0x00000000000A9000-memory.dmp
memory/2600-16-0x00000000007E0000-0x0000000000AE3000-memory.dmp
memory/2600-17-0x0000000000080000-0x00000000000A9000-memory.dmp
memory/2600-19-0x0000000000530000-0x00000000005C0000-memory.dmp
memory/1212-21-0x0000000007410000-0x0000000007580000-memory.dmp
Analysis: behavioral4
Detonation Overview
Submitted
2024-04-01 15:42
Reported
2024-04-01 15:45
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
150s
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 2816 wrote to memory of 2448 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2816 wrote to memory of 2448 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2816 wrote to memory of 2448 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2448 wrote to memory of 4900 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2448 wrote to memory of 4900 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2448 wrote to memory of 4900 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2448 wrote to memory of 4900 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\yhjjbtf.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2448 -ip 2448
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2448 -s 740
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| NL | 52.142.223.178:80 | tcp | |
| 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 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 40.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 89.16.208.104.in-addr.arpa | udp |
Files
memory/2448-0-0x0000000010000000-0x000000001000B000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-01 15:42
Reported
2024-04-01 15:45
Platform
win7-20240221-en
Max time kernel
118s
Max time network
121s
Command Line
Signatures
Xloader
Xloader payload
| Description | Indicator | Process | Target |
| 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\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2164 set thread context of 2032 | N/A | C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\nsd29B0.tmp\yhjjbtf.dll
| MD5 | 2109a0431e1e8fbce8007bc6dbdc8d2d |
| SHA1 | f85d1cfa01ca893063af01510115bc279da84c2a |
| SHA256 | 520857c7a5bfaeebf0f39504ae85d32b7e153774e93cb2be486f9a5d35b76d05 |
| SHA512 | a190901c467b65b18370aa3dbec9bb994294042fb78965b6baaf92a31fdc316912679a23f81f76a0d30f51c9c9ccbabcd58b0d420a1c6060508de1f0c0d320fb |
memory/2164-8-0x0000000010000000-0x000000001000B000-memory.dmp
memory/2032-9-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2164-10-0x0000000010000000-0x000000001000B000-memory.dmp
memory/2032-13-0x00000000008A0000-0x0000000000BA3000-memory.dmp
memory/2032-14-0x00000000008A0000-0x0000000000BA3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-01 15:42
Reported
2024-04-01 15:45
Platform
win10v2004-20231215-en
Max time kernel
89s
Max time network
150s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_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\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3736 wrote to memory of 1888 | N/A | C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe |
| PID 3736 wrote to memory of 1888 | N/A | C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe |
| PID 3736 wrote to memory of 1888 | N/A | C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\73fe142254abec3aeaef375f0564d40a_JaffaCakes118.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3736 -ip 3736
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3736 -s 1060
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 | 40.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsm4CB9.tmp\yhjjbtf.dll
| MD5 | 2109a0431e1e8fbce8007bc6dbdc8d2d |
| SHA1 | f85d1cfa01ca893063af01510115bc279da84c2a |
| SHA256 | 520857c7a5bfaeebf0f39504ae85d32b7e153774e93cb2be486f9a5d35b76d05 |
| SHA512 | a190901c467b65b18370aa3dbec9bb994294042fb78965b6baaf92a31fdc316912679a23f81f76a0d30f51c9c9ccbabcd58b0d420a1c6060508de1f0c0d320fb |
memory/3736-8-0x0000000010000000-0x000000001000B000-memory.dmp