Analysis
- max time kernel
136s - max time network
128s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 16:58
Static task
static1
Behavioral task
behavioral1
Sample
document-39836604.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-39836604.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-39836604.xlsm
- Size 106KB
- Sample210331-2razlsf5dj
- SHA256 9573dc66ef69a076e57fe7a307a4403066d9c684fb9fac30ee99c2e7567878ff
- MD5 b887b0b1cb3b3a157be9aaab42d7e32b
- SHA1 6f12d974f493a19f751ad2d1800b4416d3298ca6
- SHA512 aaf21598d573cded2f1272f63cfdcdc520401ee6fdeeeed0cf17707b0694a3e7d476c68d956ae6622546f4ec33afe331917c54bb2a91a3dfdaf757d67d159cb6
- 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 1092 4772 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2180 4772 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2264 4772 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2384 4772 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2444 4772 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/2444-14-0x000001B0D8FC0000-0x000001B0D8FC7000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 2 IoCs
flow pid Process 45 2444 rundll32.exe 47 2444 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 2444 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\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4772 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2444 rundll32.exe 2444 rundll32.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4772 EXCEL.EXE 4772 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4772 EXCEL.EXE 4772 EXCEL.EXE 4772 EXCEL.EXE 4772 EXCEL.EXE 4772 EXCEL.EXE 4772 EXCEL.EXE 4772 EXCEL.EXE 4772 EXCEL.EXE 4772 EXCEL.EXE 4772 EXCEL.EXE 4772 EXCEL.EXE 4772 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4772 wrote to memory of 1092 4772 EXCEL.EXE 81 PID 4772 wrote to memory of 1092 4772 EXCEL.EXE 81 PID 4772 wrote to memory of 2180 4772 EXCEL.EXE 82 PID 4772 wrote to memory of 2180 4772 EXCEL.EXE 82 PID 4772 wrote to memory of 2264 4772 EXCEL.EXE 83 PID 4772 wrote to memory of 2264 4772 EXCEL.EXE 83 PID 4772 wrote to memory of 2384 4772 EXCEL.EXE 84 PID 4772 wrote to memory of 2384 4772 EXCEL.EXE 84 PID 4772 wrote to memory of 2444 4772 EXCEL.EXE 85 PID 4772 wrote to memory of 2444 4772 EXCEL.EXE 85
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-39836604.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:4772 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1092
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2180
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2264
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2384
-
-
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:2444
-