Analysis
- max time kernel
138s - max time network
151s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 03:50
Static task
static1
Behavioral task
behavioral1
Sample
document-1073531059.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1073531059.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-1073531059.xlsm
- Size 105KB
- Sample210331-xg6jxp47bs
- SHA256 f31dbf377284905c8a02119127267d7ae7bb4e9bb66f77b627648e3a7710b747
- MD5 d93e36ad59bb737fc2780d2ffcadc60f
- SHA1 615cde9cca40dba28cab14aa469dadf5b1a345a4
- SHA512 4e4fabcb91fdef7f291c888c9525ae7f0f38482d0f0db106b92024e2ada4d52aac8f365d171701748bed4c10926347be7dd5c00cc973567e3a49761d4d8c555d
- 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 1736 796 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2664 796 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1852 796 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2004 796 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3880 796 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/1736-10-0x000001F655950000-0x000001F655957000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 47 1736 rundll32.exe 49 1736 rundll32.exe 50 2004 rundll32.exe 52 2004 rundll32.exe 53 3880 rundll32.exe 54 3880 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 1736 rundll32.exe 2004 rundll32.exe 3880 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 796 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1736 rundll32.exe 1736 rundll32.exe 2004 rundll32.exe 2004 rundll32.exe 3880 rundll32.exe 3880 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 796 wrote to memory of 1736 796 EXCEL.EXE 80 PID 796 wrote to memory of 1736 796 EXCEL.EXE 80 PID 796 wrote to memory of 2664 796 EXCEL.EXE 81 PID 796 wrote to memory of 2664 796 EXCEL.EXE 81 PID 796 wrote to memory of 1852 796 EXCEL.EXE 82 PID 796 wrote to memory of 1852 796 EXCEL.EXE 82 PID 796 wrote to memory of 2004 796 EXCEL.EXE 83 PID 796 wrote to memory of 2004 796 EXCEL.EXE 83 PID 796 wrote to memory of 3880 796 EXCEL.EXE 85 PID 796 wrote to memory of 3880 796 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-1073531059.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:796 -
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:1736
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2664
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1852
-
-
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:2004
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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:3880
-