Analysis
- max time kernel
137s - max time network
136s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 04:08
Static task
static1
Behavioral task
behavioral1
Sample
document-377645040.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-377645040.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-377645040.xlsm
- Size 105KB
- Sample210331-2btml3vqt6
- SHA256 c57e283656b18763842e23e423e150e6ecd791d9710f1b8e85a85abb52f7b383
- MD5 fce21e90790450a16529c81af5ad6419
- SHA1 c6fa1b9c08074a5bcad983b00a9632f1aa589b51
- SHA512 16503e1c47a2c314f0e86c3d4fe57a29b47d04d441c745807ec8bdc8c0e9489cf9fc41ca4d16079a8b5acc71e81b0c5c98f8d2940bea432e374e2aaea944d27e
- 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 2084 3920 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 736 3920 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 384 3920 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1784 3920 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4020 3920 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/2084-10-0x0000015E95AB0000-0x0000015E95AB7000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 46 2084 rundll32.exe 48 2084 rundll32.exe 49 1784 rundll32.exe 50 1784 rundll32.exe 51 4020 rundll32.exe 52 4020 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 2084 rundll32.exe 1784 rundll32.exe 4020 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 3920 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2084 rundll32.exe 2084 rundll32.exe 1784 rundll32.exe 1784 rundll32.exe 4020 rundll32.exe 4020 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3920 wrote to memory of 2084 3920 EXCEL.EXE 81 PID 3920 wrote to memory of 2084 3920 EXCEL.EXE 81 PID 3920 wrote to memory of 736 3920 EXCEL.EXE 82 PID 3920 wrote to memory of 736 3920 EXCEL.EXE 82 PID 3920 wrote to memory of 384 3920 EXCEL.EXE 83 PID 3920 wrote to memory of 384 3920 EXCEL.EXE 83 PID 3920 wrote to memory of 1784 3920 EXCEL.EXE 84 PID 3920 wrote to memory of 1784 3920 EXCEL.EXE 84 PID 3920 wrote to memory of 4020 3920 EXCEL.EXE 85 PID 3920 wrote to memory of 4020 3920 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-377645040.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3920 -
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:2084
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:736
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:384
-
-
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:1784
-
-
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:4020
-