Analysis
- max time kernel
136s - max time network
126s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 03:50
Static task
static1
Behavioral task
behavioral1
Sample
document-392664139.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-392664139.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-392664139.xlsm
- Size 105KB
- Sample210331-t12b2le1bj
- SHA256 82e46932e3e513ebee488786cc12a1840ec9c2e83dc907f47c82f3e40ba8053e
- MD5 d06d4b278d63f87d193c030396636061
- SHA1 0f0363e6bd8c2fa3ff90e78bf83f29bc621f58e3
- SHA512 439f478c458470c206fffc89299464d75facbe8eed0b2482c44345ea12017a97113ca055aba41a1b517b6520336d2c8502cbee3b090685eb90e605f74c1f015c
- 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 3116 504 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1852 504 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2764 504 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2448 504 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1268 504 rundll32.exe 68 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/3116-10-0x00000226B4E80000-0x00000226B4E87000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 42 3116 rundll32.exe 44 3116 rundll32.exe 45 2448 rundll32.exe 48 2448 rundll32.exe 51 1268 rundll32.exe 54 1268 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 3116 rundll32.exe 2448 rundll32.exe 1268 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 504 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3116 rundll32.exe 3116 rundll32.exe 2448 rundll32.exe 2448 rundll32.exe 1268 rundll32.exe 1268 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 504 EXCEL.EXE 504 EXCEL.EXE 504 EXCEL.EXE 504 EXCEL.EXE 504 EXCEL.EXE 504 EXCEL.EXE 504 EXCEL.EXE 504 EXCEL.EXE 504 EXCEL.EXE 504 EXCEL.EXE 504 EXCEL.EXE 504 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 504 wrote to memory of 3116 504 EXCEL.EXE 82 PID 504 wrote to memory of 3116 504 EXCEL.EXE 82 PID 504 wrote to memory of 1852 504 EXCEL.EXE 84 PID 504 wrote to memory of 1852 504 EXCEL.EXE 84 PID 504 wrote to memory of 2764 504 EXCEL.EXE 85 PID 504 wrote to memory of 2764 504 EXCEL.EXE 85 PID 504 wrote to memory of 2448 504 EXCEL.EXE 86 PID 504 wrote to memory of 2448 504 EXCEL.EXE 86 PID 504 wrote to memory of 1268 504 EXCEL.EXE 87 PID 504 wrote to memory of 1268 504 EXCEL.EXE 87
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-392664139.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:504 -
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:3116
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1852
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2764
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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:2448
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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:1268
-