Analysis
- max time kernel
70s - max time network
119s - platform
windows10_x64 - resource
win10v20201028 - submitted
01/04/2021, 17:43
Static task
static1
Behavioral task
behavioral1
Sample
608.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
608.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target 608.xlsm
- Size 84KB
- Sample210401-yyfp3esgpn
- SHA256 d083ff47c69606aa720243f199bcbb040f8921d332fa9fed61d83583aada439f
- MD5 cdbfdd73f3ff4bc00ca187144beb2b92
- SHA1 3eef7d700579a4ebb28f74b68497caca8f8ded8c
- SHA512 a03f5d8b7366fbeaece4f5c58a29253b4c8520e80f97d535b3b77d719b0822ee286f1bbb18afb71c3d5b466ce04e4a0cf5121bc7fe923c89aae40130ff1454cc
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
icedid
Campaign
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3616463248
C2
-
tvorartificialnature.xyz
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 1152 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3912 1152 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2236 1152 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2732 1152 rundll32.exe 68 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4076 1152 rundll32.exe 68 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/2236-12-0x0000018752B90000-0x0000018752B97000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 2 IoCs
flow pid Process 44 2236 rundll32.exe 46 2236 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 2236 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 1152 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2236 rundll32.exe 2236 rundll32.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1152 EXCEL.EXE 1152 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE 1152 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 1152 wrote to memory of 1736 1152 EXCEL.EXE 80 PID 1152 wrote to memory of 1736 1152 EXCEL.EXE 80 PID 1152 wrote to memory of 3912 1152 EXCEL.EXE 81 PID 1152 wrote to memory of 3912 1152 EXCEL.EXE 81 PID 1152 wrote to memory of 2236 1152 EXCEL.EXE 82 PID 1152 wrote to memory of 2236 1152 EXCEL.EXE 82 PID 1152 wrote to memory of 2732 1152 EXCEL.EXE 84 PID 1152 wrote to memory of 2732 1152 EXCEL.EXE 84 PID 1152 wrote to memory of 4076 1152 EXCEL.EXE 85 PID 1152 wrote to memory of 4076 1152 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\608.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:1152 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1736
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3912
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:2236
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2732
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4076
-