Analysis
- max time kernel
70s - max time network
127s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 17:23
Static task
static1
Behavioral task
behavioral1
Sample
document-1901123864.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1901123864.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-1901123864.xlsm
- Size 106KB
- Sample210331-1d2rmsc1zs
- SHA256 a3956aae0810a92ba67e04cc2a428c6da29282230f9ba7338125d2df74515935
- MD5 cf9632f6db549197be1bd1c61a023a9d
- SHA1 f27b1e81562ac85d40e3b00a1b0e407eee0dc185
- SHA512 dfa003cf8b1929037a503290c6bc90d15f8db957d54e29a024dc51c693b8223ac8ec8895f8e5cbdc5eddbbc6e069197fd29c0a8850d3c1cbd3bd7577bb662822
- 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 360 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 2720 1152 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2072 1152 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3776 1152 rundll32.exe 68 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/3776-14-0x000001B0DD970000-0x000001B0DD977000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 2 IoCs
flow pid Process 45 3776 rundll32.exe 47 3776 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 3776 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 3776 rundll32.exe 3776 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 360 1152 EXCEL.EXE 82 PID 1152 wrote to memory of 360 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 2720 1152 EXCEL.EXE 84 PID 1152 wrote to memory of 2720 1152 EXCEL.EXE 84 PID 1152 wrote to memory of 2072 1152 EXCEL.EXE 85 PID 1152 wrote to memory of 2072 1152 EXCEL.EXE 85 PID 1152 wrote to memory of 3776 1152 EXCEL.EXE 86 PID 1152 wrote to memory of 3776 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-1901123864.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:360
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-
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:2720
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2072
-
-
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:3776
-