Analysis
- max time kernel
135s - max time network
119s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 17:32
Static task
static1
Behavioral task
behavioral1
Sample
document-180931699.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-180931699.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-180931699.xlsm
- Size 106KB
- Sample210331-xrklbrflm2
- SHA256 4603695abccc36c0d02012cc5c2b5eb2bd78e1b4258776b9b8ef522fb86507a6
- MD5 9834cf916a4d9bc2eb8bb3e301c8dd38
- SHA1 931b8ff51cbbf98ab96ce43223fe7c4b4d88ad60
- SHA512 5a7e321e85a9ba10fa74a6bb30679c0e61b27bb054517b8bda13159b2833d07b662e72a64d3336ec4c6aa38c9d440b1e3a5f7b1817ab2a44ed199f15ce4037f4
- 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 2312 4804 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2524 4804 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2556 4804 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2584 4804 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2932 4804 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/2932-14-0x0000015413850000-0x0000015413857000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 2 IoCs
flow pid Process 42 2932 rundll32.exe 44 2932 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 2932 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4804 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2932 rundll32.exe 2932 rundll32.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4804 EXCEL.EXE 4804 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4804 EXCEL.EXE 4804 EXCEL.EXE 4804 EXCEL.EXE 4804 EXCEL.EXE 4804 EXCEL.EXE 4804 EXCEL.EXE 4804 EXCEL.EXE 4804 EXCEL.EXE 4804 EXCEL.EXE 4804 EXCEL.EXE 4804 EXCEL.EXE 4804 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4804 wrote to memory of 2312 4804 EXCEL.EXE 81 PID 4804 wrote to memory of 2312 4804 EXCEL.EXE 81 PID 4804 wrote to memory of 2524 4804 EXCEL.EXE 82 PID 4804 wrote to memory of 2524 4804 EXCEL.EXE 82 PID 4804 wrote to memory of 2556 4804 EXCEL.EXE 83 PID 4804 wrote to memory of 2556 4804 EXCEL.EXE 83 PID 4804 wrote to memory of 2584 4804 EXCEL.EXE 84 PID 4804 wrote to memory of 2584 4804 EXCEL.EXE 84 PID 4804 wrote to memory of 2932 4804 EXCEL.EXE 85 PID 4804 wrote to memory of 2932 4804 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-180931699.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:4804 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2312
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2524
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2556
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2584
-
-
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:2932
-