Analysis
- max time kernel
137s - max time network
132s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 16:44
Static task
static1
Behavioral task
behavioral1
Sample
document-262264858.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-262264858.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-262264858.xlsm
- Size 106KB
- Sample210331-9f1rhbbvh6
- SHA256 fd35adba2fa800688a05828115e3bd97b5db0d82e990feb62bcfd34092afd985
- MD5 6ddf20305f28c62291a60721348e4c85
- SHA1 49e7d65deb59d037afaaa78de7d4437b4eeb1f3b
- SHA512 e0eac8cbe5a78436dd15a00f864aec2a5542d492363024f399fafc91a38e053b77383f4da66029d36de5b84b09495e357dbc11f7bd57d4dea71d879f16d296ec
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
icedid
Campaign
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3633240867
C2
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afdeserutil32.website
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 1692 4704 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1768 4704 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2012 4704 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4344 4704 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3984 4704 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/3984-14-0x0000022BB7480000-0x0000022BB7487000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 2 IoCs
flow pid Process 45 3984 rundll32.exe 47 3984 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 3984 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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 4704 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3984 rundll32.exe 3984 rundll32.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4704 EXCEL.EXE 4704 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4704 EXCEL.EXE 4704 EXCEL.EXE 4704 EXCEL.EXE 4704 EXCEL.EXE 4704 EXCEL.EXE 4704 EXCEL.EXE 4704 EXCEL.EXE 4704 EXCEL.EXE 4704 EXCEL.EXE 4704 EXCEL.EXE 4704 EXCEL.EXE 4704 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4704 wrote to memory of 1692 4704 EXCEL.EXE 81 PID 4704 wrote to memory of 1692 4704 EXCEL.EXE 81 PID 4704 wrote to memory of 1768 4704 EXCEL.EXE 83 PID 4704 wrote to memory of 1768 4704 EXCEL.EXE 83 PID 4704 wrote to memory of 2012 4704 EXCEL.EXE 84 PID 4704 wrote to memory of 2012 4704 EXCEL.EXE 84 PID 4704 wrote to memory of 4344 4704 EXCEL.EXE 85 PID 4704 wrote to memory of 4344 4704 EXCEL.EXE 85 PID 4704 wrote to memory of 3984 4704 EXCEL.EXE 86 PID 4704 wrote to memory of 3984 4704 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-262264858.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4704 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1692
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1768
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2012
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4344
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:3984
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