Analysis
- max time kernel
136s - max time network
128s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 04:00
Static task
static1
Behavioral task
behavioral1
Sample
document-393182473.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-393182473.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-393182473.xlsm
- Size 105KB
- Sample210331-s1cys6362e
- SHA256 901d412443099b9ad7e15601a14070e0d4e1268eedc4b536a703348b883ddfa4
- MD5 dccee65b0c1fb60abbe72e26f29baaad
- SHA1 4b2b6cae63400955791d9791e59a2e3021f1795f
- SHA512 840652a7591dbb0af382d5689b51a7a70979e6ed17c81b2bb0a8e8f98ee767805b11caefba07de4abbafe28dc0e752dcb6e3d54d9bf5e7c6243c47657cb9b38c
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
icedid
Campaign
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3717128962
C2
-
usaaforced.fun
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 3820 744 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2812 744 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 752 744 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1572 744 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4056 744 rundll32.exe 68 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/3820-10-0x000002B275C00000-0x000002B275C07000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 38 3820 rundll32.exe 40 3820 rundll32.exe 42 1572 rundll32.exe 43 1572 rundll32.exe 49 4056 rundll32.exe 51 4056 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 3820 rundll32.exe 1572 rundll32.exe 4056 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 744 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3820 rundll32.exe 3820 rundll32.exe 1572 rundll32.exe 1572 rundll32.exe 4056 rundll32.exe 4056 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 744 wrote to memory of 3820 744 EXCEL.EXE 81 PID 744 wrote to memory of 3820 744 EXCEL.EXE 81 PID 744 wrote to memory of 2812 744 EXCEL.EXE 83 PID 744 wrote to memory of 2812 744 EXCEL.EXE 83 PID 744 wrote to memory of 752 744 EXCEL.EXE 84 PID 744 wrote to memory of 752 744 EXCEL.EXE 84 PID 744 wrote to memory of 1572 744 EXCEL.EXE 85 PID 744 wrote to memory of 1572 744 EXCEL.EXE 85 PID 744 wrote to memory of 4056 744 EXCEL.EXE 86 PID 744 wrote to memory of 4056 744 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-393182473.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:744 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd,DllRegisterServer2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:3820
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2812
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:752
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd3,DllRegisterServer2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:1572
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd4,DllRegisterServer2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:4056
-