Analysis
- max time kernel
137s - max time network
128s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 03:40
Static task
static1
Behavioral task
behavioral1
Sample
document-484198840.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-484198840.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-484198840.xlsm
- Size 105KB
- Sample210331-nrxpsv22k2
- SHA256 1d5a9814b1a9e4bd8a93d35abc6dddebfdf1ff4f71a6598fb56d93b4088c6f48
- MD5 b7f279f88a478f20edfdd7b924117e18
- SHA1 9d304472f5b263fadef1930259f4487ae36e9614
- SHA512 d5f0686c3ef8b799738a38836009c17eb60001b2cf3941e4474c552f67bd3f105bc7944d92d7fc58a25d81ad70a3ae3cb14456436cfe64b819bd35544b289f49
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
icedid
Campaign
-
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 1712 4764 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2312 4764 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2556 4764 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2596 4764 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3668 4764 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/1712-10-0x00000225EC0E0000-0x00000225EC0E7000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 40 1712 rundll32.exe 42 1712 rundll32.exe 44 2596 rundll32.exe 45 2596 rundll32.exe 48 3668 rundll32.exe 50 3668 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 1712 rundll32.exe 2596 rundll32.exe 3668 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 4764 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1712 rundll32.exe 1712 rundll32.exe 2596 rundll32.exe 2596 rundll32.exe 3668 rundll32.exe 3668 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4764 EXCEL.EXE 4764 EXCEL.EXE 4764 EXCEL.EXE 4764 EXCEL.EXE 4764 EXCEL.EXE 4764 EXCEL.EXE 4764 EXCEL.EXE 4764 EXCEL.EXE 4764 EXCEL.EXE 4764 EXCEL.EXE 4764 EXCEL.EXE 4764 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4764 wrote to memory of 1712 4764 EXCEL.EXE 80 PID 4764 wrote to memory of 1712 4764 EXCEL.EXE 80 PID 4764 wrote to memory of 2312 4764 EXCEL.EXE 82 PID 4764 wrote to memory of 2312 4764 EXCEL.EXE 82 PID 4764 wrote to memory of 2556 4764 EXCEL.EXE 83 PID 4764 wrote to memory of 2556 4764 EXCEL.EXE 83 PID 4764 wrote to memory of 2596 4764 EXCEL.EXE 84 PID 4764 wrote to memory of 2596 4764 EXCEL.EXE 84 PID 4764 wrote to memory of 3668 4764 EXCEL.EXE 85 PID 4764 wrote to memory of 3668 4764 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-484198840.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4764 -
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:1712
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2312
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2556
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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:2596
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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:3668
-