Analysis
- max time kernel
141s - max time network
137s - platform
windows10_x64 - resource
win10v20201028 - submitted
01/04/2021, 16:05
Static task
static1
Behavioral task
behavioral1
Sample
50.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
50.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target 50.xlsm
- Size 84KB
- Sample210401-qvsqa863ea
- SHA256 7e08db8a8fa300b4cd3ffe9b5be146b148b09fb292a3f02a7724bf3679e535fd
- MD5 849ed4be278bf5186bc8d507f015c6bb
- SHA1 5511c4b113895d24a3c99ffa24db15d73a5da8d1
- SHA512 7b73b1e5872a880ba2c13bd02edf2d759b86f45562b8a95a7cc37111273024c5ca974beef74e59272fe6d921c5c145ebb01a2de4ae476fb29cb9a4b561a9d9f2
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
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icedid
Campaign
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3616463248
C2
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tvorartificialnature.xyz
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 2476 3996 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3936 3996 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2644 3996 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 512 3996 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1684 3996 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/2644-12-0x000001AE8D620000-0x000001AE8D627000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 2 IoCs
flow pid Process 47 2644 rundll32.exe 49 2644 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 2644 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 3996 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2644 rundll32.exe 2644 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3996 EXCEL.EXE 3996 EXCEL.EXE 3996 EXCEL.EXE 3996 EXCEL.EXE 3996 EXCEL.EXE 3996 EXCEL.EXE 3996 EXCEL.EXE 3996 EXCEL.EXE 3996 EXCEL.EXE 3996 EXCEL.EXE 3996 EXCEL.EXE 3996 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3996 wrote to memory of 2476 3996 EXCEL.EXE 80 PID 3996 wrote to memory of 2476 3996 EXCEL.EXE 80 PID 3996 wrote to memory of 3936 3996 EXCEL.EXE 81 PID 3996 wrote to memory of 3936 3996 EXCEL.EXE 81 PID 3996 wrote to memory of 2644 3996 EXCEL.EXE 82 PID 3996 wrote to memory of 2644 3996 EXCEL.EXE 82 PID 3996 wrote to memory of 512 3996 EXCEL.EXE 84 PID 3996 wrote to memory of 512 3996 EXCEL.EXE 84 PID 3996 wrote to memory of 1684 3996 EXCEL.EXE 85 PID 3996 wrote to memory of 1684 3996 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\50.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3996 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2476
-
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3936
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:2644
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:512
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1684
-