Analysis
- max time kernel
136s - max time network
129s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 03:45
Static task
static1
Behavioral task
behavioral1
Sample
document-627251743.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-627251743.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-627251743.xlsm
- Size 105KB
- Sample210331-sxzag4agqa
- SHA256 4b359b57484dfdcff09e3dacbfa4a97e0a9c9d5e6affc691521b7856d4af3a86
- MD5 cc5060bc5d1467aa6b5cb2a00f182210
- SHA1 104b09ae6f438af1da177b8c0c90bbbff6e36844
- SHA512 d0b917a3d25cd90bf532f19aa7a5564359dd961cee0c4e895e7c5356d2ad967ce70907d3f00e2b43539d0957841783055959ce91c3f07781d362d4a6ca5659e2
- 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 2924 580 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2552 580 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2600 580 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2396 580 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2640 580 rundll32.exe 68 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/2924-10-0x000001ABD0910000-0x000001ABD0917000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 42 2924 rundll32.exe 44 2924 rundll32.exe 46 2396 rundll32.exe 47 2396 rundll32.exe 51 2640 rundll32.exe 52 2640 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 2924 rundll32.exe 2396 rundll32.exe 2640 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 580 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2924 rundll32.exe 2924 rundll32.exe 2396 rundll32.exe 2396 rundll32.exe 2640 rundll32.exe 2640 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 580 EXCEL.EXE 580 EXCEL.EXE 580 EXCEL.EXE 580 EXCEL.EXE 580 EXCEL.EXE 580 EXCEL.EXE 580 EXCEL.EXE 580 EXCEL.EXE 580 EXCEL.EXE 580 EXCEL.EXE 580 EXCEL.EXE 580 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 580 wrote to memory of 2924 580 EXCEL.EXE 82 PID 580 wrote to memory of 2924 580 EXCEL.EXE 82 PID 580 wrote to memory of 2552 580 EXCEL.EXE 84 PID 580 wrote to memory of 2552 580 EXCEL.EXE 84 PID 580 wrote to memory of 2600 580 EXCEL.EXE 85 PID 580 wrote to memory of 2600 580 EXCEL.EXE 85 PID 580 wrote to memory of 2396 580 EXCEL.EXE 86 PID 580 wrote to memory of 2396 580 EXCEL.EXE 86 PID 580 wrote to memory of 2640 580 EXCEL.EXE 87 PID 580 wrote to memory of 2640 580 EXCEL.EXE 87
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-627251743.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:580 -
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:2924
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2552
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2600
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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:2396
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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:2640
-