Analysis
- max time kernel
137s - max time network
132s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 04:05
Static task
static1
Behavioral task
behavioral1
Sample
document-940376813.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-940376813.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-940376813.xlsm
- Size 105KB
- Sample210331-b54jch2xex
- SHA256 3b0f6c0d3c65dd9a89554bd2c4d341a73d6d770dd1e4ece001110806c6552fe4
- MD5 ed1d5233a03a31f2a114e8fbc169ac90
- SHA1 8ca0756d4d2a59f9735b9ff918953c0e7d877514
- SHA512 8316e1c797cd6e8817d1a7fae9ddeefff93e8f48781c1fbea5f9a731ef6ba0bfd10b3c481e539d669a6ce9cae553e18a230f90723e86a1d4c0303581b2a0a4f8
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
icedid
Campaign
-
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 4468 4688 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 668 4688 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 888 4688 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1004 4688 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1280 4688 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/4468-10-0x0000026724800000-0x0000026724807000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 42 4468 rundll32.exe 44 4468 rundll32.exe 46 1004 rundll32.exe 47 1004 rundll32.exe 52 1280 rundll32.exe 53 1280 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 4468 rundll32.exe 1004 rundll32.exe 1280 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 4688 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4468 rundll32.exe 4468 rundll32.exe 1004 rundll32.exe 1004 rundll32.exe 1280 rundll32.exe 1280 rundll32.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4688 EXCEL.EXE 4688 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4688 EXCEL.EXE 4688 EXCEL.EXE 4688 EXCEL.EXE 4688 EXCEL.EXE 4688 EXCEL.EXE 4688 EXCEL.EXE 4688 EXCEL.EXE 4688 EXCEL.EXE 4688 EXCEL.EXE 4688 EXCEL.EXE 4688 EXCEL.EXE 4688 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4688 wrote to memory of 4468 4688 EXCEL.EXE 80 PID 4688 wrote to memory of 4468 4688 EXCEL.EXE 80 PID 4688 wrote to memory of 668 4688 EXCEL.EXE 82 PID 4688 wrote to memory of 668 4688 EXCEL.EXE 82 PID 4688 wrote to memory of 888 4688 EXCEL.EXE 83 PID 4688 wrote to memory of 888 4688 EXCEL.EXE 83 PID 4688 wrote to memory of 1004 4688 EXCEL.EXE 84 PID 4688 wrote to memory of 1004 4688 EXCEL.EXE 84 PID 4688 wrote to memory of 1280 4688 EXCEL.EXE 86 PID 4688 wrote to memory of 1280 4688 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-940376813.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:4688 -
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:4468
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:668
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:888
-
-
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:1004
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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:1280
-