Analysis
- max time kernel
138s - max time network
137s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 03:30
Static task
static1
Behavioral task
behavioral1
Sample
document-1644845700.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1644845700.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-1644845700.xlsm
- Size 105KB
- Sample210331-7e2tdmeles
- SHA256 a21d44d5c723ee84a70ff453fd0ab25a264e4df546a1349c2a0ae6c26c9c41f5
- MD5 a0d155126656e3010d27435cca54f41a
- SHA1 c96d85edf65185f3583bc62b22e3b70656d47c8c
- SHA512 5c5a027040cde82c78f97b423342535442b5c4bba99586cd7cc93033f4f166e39335dbe3d1ac3e767996c6266641dea50b806ad54b4c25efa546fd0435268e8f
- 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 1796 4692 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2068 4692 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2232 4692 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2400 4692 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2836 4692 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/1796-10-0x000002668F540000-0x000002668F547000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 46 1796 rundll32.exe 48 1796 rundll32.exe 49 2400 rundll32.exe 50 2400 rundll32.exe 51 2836 rundll32.exe 52 2836 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 1796 rundll32.exe 2400 rundll32.exe 2836 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 4692 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1796 rundll32.exe 1796 rundll32.exe 2400 rundll32.exe 2400 rundll32.exe 2836 rundll32.exe 2836 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4692 EXCEL.EXE 4692 EXCEL.EXE 4692 EXCEL.EXE 4692 EXCEL.EXE 4692 EXCEL.EXE 4692 EXCEL.EXE 4692 EXCEL.EXE 4692 EXCEL.EXE 4692 EXCEL.EXE 4692 EXCEL.EXE 4692 EXCEL.EXE 4692 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4692 wrote to memory of 1796 4692 EXCEL.EXE 80 PID 4692 wrote to memory of 1796 4692 EXCEL.EXE 80 PID 4692 wrote to memory of 2068 4692 EXCEL.EXE 81 PID 4692 wrote to memory of 2068 4692 EXCEL.EXE 81 PID 4692 wrote to memory of 2232 4692 EXCEL.EXE 82 PID 4692 wrote to memory of 2232 4692 EXCEL.EXE 82 PID 4692 wrote to memory of 2400 4692 EXCEL.EXE 83 PID 4692 wrote to memory of 2400 4692 EXCEL.EXE 83 PID 4692 wrote to memory of 2836 4692 EXCEL.EXE 85 PID 4692 wrote to memory of 2836 4692 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-1644845700.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4692 -
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:1796
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2068
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2232
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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:2400
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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:2836
-