Analysis
- max time kernel
136s - max time network
147s - platform
windows10_x64 - resource
win10v20201028 - submitted
01/04/2021, 06:44
Static task
static1
Behavioral task
behavioral1
Sample
document-852263110.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-852263110.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-852263110.xlsm
- Size 106KB
- Sample210401-9mdh5da3bn
- SHA256 a473dd7944b495dd027b01d690d8e85719b334168a0ac1cd72565e895cd4c19b
- MD5 e62b9229d647b88562b27a4c7adbd276
- SHA1 27aa706b464d94a94e1f5dfb3294a33d3879d9a0
- SHA512 81a4bba2a4e368da7c4fa3267e2aa732e7816c286be6949fb2e77fd55745923141ff1c3c7d44128d04bafa4606bbcefabe1cbded1c46a6bdd5c9a13b94d1f6b4
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
icedid
Campaign
-
3633240867
C2
-
afdeserutil32.website
Signatures
- Process spawned unexpected child process 5 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2144 4712 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2012 4712 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4344 4712 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3984 4712 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4092 4712 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/4092-14-0x0000028E0A320000-0x0000028E0A327000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 1 IoCs
flow pid Process 51 4092 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 4092 rundll32.exe - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4712 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4092 rundll32.exe 4092 rundll32.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4712 EXCEL.EXE 4712 EXCEL.EXE - Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE 4712 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4712 wrote to memory of 2144 4712 EXCEL.EXE 82 PID 4712 wrote to memory of 2144 4712 EXCEL.EXE 82 PID 4712 wrote to memory of 2012 4712 EXCEL.EXE 83 PID 4712 wrote to memory of 2012 4712 EXCEL.EXE 83 PID 4712 wrote to memory of 4344 4712 EXCEL.EXE 84 PID 4712 wrote to memory of 4344 4712 EXCEL.EXE 84 PID 4712 wrote to memory of 3984 4712 EXCEL.EXE 85 PID 4712 wrote to memory of 3984 4712 EXCEL.EXE 85 PID 4712 wrote to memory of 4092 4712 EXCEL.EXE 86 PID 4712 wrote to memory of 4092 4712 EXCEL.EXE 86
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\document-852263110.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4712 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2144
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2012
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4344
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3984
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:4092
-