Analysis
- max time kernel
137s - max time network
130s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 16:36
Static task
static1
Behavioral task
behavioral1
Sample
document-961259182.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-961259182.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-961259182.xlsm
- Size 106KB
- Sample210331-1cn8ms8a5a
- SHA256 2a56b0023588bd35c0f7623dea14ab4966a932c004b4a81e871d5f7a4adecdb9
- MD5 dffb8e483f2f7e1304fc14a56ac48f1b
- SHA1 ab07db227cd37f1610b52912ae9b989f22dcc364
- SHA512 2943622c7258bafba19a4100de01fc441d0ea16bc2e62c9cf0d3e21522976f6b6bf747f4c896e22bcb157eb015e9fbf6d97dfdc1ed0587e07ad215e090df123b
- 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 1748 1152 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2668 1152 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2732 1152 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4088 1152 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2116 1152 rundll32.exe 68 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/2116-14-0x000002215B6F0000-0x000002215B6F7000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 2 IoCs
flow pid Process 54 2116 rundll32.exe 56 2116 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 2116 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 opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE 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 - 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 1152 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2116 rundll32.exe 2116 rundll32.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1152 EXCEL.EXE 1152 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 1152 wrote to memory of 1748 1152 EXCEL.EXE 82 PID 1152 wrote to memory of 1748 1152 EXCEL.EXE 82 PID 1152 wrote to memory of 2668 1152 EXCEL.EXE 83 PID 1152 wrote to memory of 2668 1152 EXCEL.EXE 83 PID 1152 wrote to memory of 2732 1152 EXCEL.EXE 84 PID 1152 wrote to memory of 2732 1152 EXCEL.EXE 84 PID 1152 wrote to memory of 4088 1152 EXCEL.EXE 85 PID 1152 wrote to memory of 4088 1152 EXCEL.EXE 85 PID 1152 wrote to memory of 2116 1152 EXCEL.EXE 86 PID 1152 wrote to memory of 2116 1152 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-961259182.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:1152 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1748
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2668
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2732
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4088
-
-
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:2116
-