Analysis
- max time kernel
137s - max time network
121s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 04:05
Static task
static1
Behavioral task
behavioral1
Sample
document-385112319.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-385112319.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-385112319.xlsm
- Size 105KB
- Sample210331-7hycp6srp2
- SHA256 0b8586e73348e68e88d6999dffd0c7ab6604fcfbfab69ca5caf2abbdd3661487
- MD5 f29c11faf5de1bda47b23ae3de4d4cf1
- SHA1 01ee0482168f1c2a5078cd4c5a46d02e9a85dc0f
- SHA512 1bdba231c8d925dd48317081fc6f50996be5965c9cbd7a70519caa9a816bc20a905682a0494629a2ff140a3674b35ade08000735344d39d545214b3a99028b0d
- 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 1332 4640 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1792 4640 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2012 4640 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1692 4640 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4032 4640 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/1332-10-0x0000023F19C60000-0x0000023F19C67000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 38 1332 rundll32.exe 40 1332 rundll32.exe 42 1692 rundll32.exe 44 1692 rundll32.exe 49 4032 rundll32.exe 50 4032 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 1332 rundll32.exe 1692 rundll32.exe 4032 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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 4640 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1332 rundll32.exe 1332 rundll32.exe 1692 rundll32.exe 1692 rundll32.exe 4032 rundll32.exe 4032 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4640 EXCEL.EXE 4640 EXCEL.EXE 4640 EXCEL.EXE 4640 EXCEL.EXE 4640 EXCEL.EXE 4640 EXCEL.EXE 4640 EXCEL.EXE 4640 EXCEL.EXE 4640 EXCEL.EXE 4640 EXCEL.EXE 4640 EXCEL.EXE 4640 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4640 wrote to memory of 1332 4640 EXCEL.EXE 80 PID 4640 wrote to memory of 1332 4640 EXCEL.EXE 80 PID 4640 wrote to memory of 1792 4640 EXCEL.EXE 82 PID 4640 wrote to memory of 1792 4640 EXCEL.EXE 82 PID 4640 wrote to memory of 2012 4640 EXCEL.EXE 83 PID 4640 wrote to memory of 2012 4640 EXCEL.EXE 83 PID 4640 wrote to memory of 1692 4640 EXCEL.EXE 84 PID 4640 wrote to memory of 1692 4640 EXCEL.EXE 84 PID 4640 wrote to memory of 4032 4640 EXCEL.EXE 85 PID 4640 wrote to memory of 4032 4640 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-385112319.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4640 -
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:1332
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1792
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2012
-
-
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:1692
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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:4032
-