Analysis
- max time kernel
136s - max time network
130s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 04:08
Static task
static1
Behavioral task
behavioral1
Sample
document-144938486.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-144938486.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-144938486.xlsm
- Size 105KB
- Sample210331-32jrnfxv5e
- SHA256 129498b26d732ccdfbbee6a645a3b66c2320da68505a51e1df82992070baa3fe
- MD5 f8114f6b3e377cebff044c11ae808a5e
- SHA1 f290752911d6b4cd3bc51677adc72d74ebf95576
- SHA512 c2af5fec2e59cc677ad9673b97428e0297a81df88589349b8248225d7c81cd7e18c29834a987ede6b1ee53b8f5f69a2fe8497bc9b71501efa03fb59152b8e632
- 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 3724 652 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3848 652 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4032 652 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2176 652 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1936 652 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/3724-10-0x0000018034820000-0x0000018034827000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 39 3724 rundll32.exe 41 3724 rundll32.exe 43 2176 rundll32.exe 44 2176 rundll32.exe 48 1936 rundll32.exe 49 1936 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 3724 rundll32.exe 2176 rundll32.exe 1936 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 652 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3724 rundll32.exe 3724 rundll32.exe 2176 rundll32.exe 2176 rundll32.exe 1936 rundll32.exe 1936 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 652 wrote to memory of 3724 652 EXCEL.EXE 80 PID 652 wrote to memory of 3724 652 EXCEL.EXE 80 PID 652 wrote to memory of 3848 652 EXCEL.EXE 82 PID 652 wrote to memory of 3848 652 EXCEL.EXE 82 PID 652 wrote to memory of 4032 652 EXCEL.EXE 83 PID 652 wrote to memory of 4032 652 EXCEL.EXE 83 PID 652 wrote to memory of 2176 652 EXCEL.EXE 84 PID 652 wrote to memory of 2176 652 EXCEL.EXE 84 PID 652 wrote to memory of 1936 652 EXCEL.EXE 85 PID 652 wrote to memory of 1936 652 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-144938486.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:652 -
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:3724
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3848
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4032
-
-
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:2176
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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:1936
-