Analysis
- max time kernel
136s - max time network
143s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 17:38
Static task
static1
Behavioral task
behavioral1
Sample
document-1916361406.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1916361406.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-1916361406.xlsm
- Size 106KB
- Sample210331-2xd11gpqqj
- SHA256 8da6ad18573476ef88302e8c82287ec6f1b0a9806773fa36a3831c24a389da3c
- MD5 aa97a56cb37b0b5e517b6f230001aff4
- SHA1 b6a1a1f08f9bec94cb344b3191b01ce8eeaf13e7
- SHA512 2d078db07733e5d5ed882a90dbf74a5187d66c3beb8e4bac52b1830e6ee531245e0068de607807a384ca874a09dc6c7001a70db7237dc2c884a15bc5eda47961
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
icedid
Campaign
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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 4572 4728 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3212 4728 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 668 4728 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 888 4728 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1004 4728 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/1004-14-0x000001B62CB40000-0x000001B62CB47000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 2 IoCs
flow pid Process 50 1004 rundll32.exe 53 1004 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 1004 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 4728 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1004 rundll32.exe 1004 rundll32.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4728 EXCEL.EXE 4728 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4728 EXCEL.EXE 4728 EXCEL.EXE 4728 EXCEL.EXE 4728 EXCEL.EXE 4728 EXCEL.EXE 4728 EXCEL.EXE 4728 EXCEL.EXE 4728 EXCEL.EXE 4728 EXCEL.EXE 4728 EXCEL.EXE 4728 EXCEL.EXE 4728 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4728 wrote to memory of 4572 4728 EXCEL.EXE 82 PID 4728 wrote to memory of 4572 4728 EXCEL.EXE 82 PID 4728 wrote to memory of 3212 4728 EXCEL.EXE 83 PID 4728 wrote to memory of 3212 4728 EXCEL.EXE 83 PID 4728 wrote to memory of 668 4728 EXCEL.EXE 84 PID 4728 wrote to memory of 668 4728 EXCEL.EXE 84 PID 4728 wrote to memory of 888 4728 EXCEL.EXE 85 PID 4728 wrote to memory of 888 4728 EXCEL.EXE 85 PID 4728 wrote to memory of 1004 4728 EXCEL.EXE 86 PID 4728 wrote to memory of 1004 4728 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-1916361406.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:4728 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4572
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3212
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:668
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:888
-
-
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:1004
-