Analysis
- max time kernel
142s - max time network
139s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 04:19
Static task
static1
Behavioral task
behavioral1
Sample
document-2095957312.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-2095957312.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-2095957312.xlsm
- Size 105KB
- Sample210331-ydbtbpdg2e
- SHA256 2aba9f9fa7dcc63683b4765e82f2c4d6ae452b8b4c050fc5f1548d5d593b3db5
- MD5 f9e7c203f654a6037022e97704611995
- SHA1 6848cbf404ee790809098841e1d204a5797b60f0
- SHA512 871952374102a9c91263a5062587f26860ac8bbe196d10cd36dcc217f23f706643f49eeb1a0385b09d75c92ed77948ea29f6f3a9f8bb7c26eea63c1cfed5da06
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
icedid
Campaign
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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 2324 652 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3748 652 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3712 652 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3732 652 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 744 652 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/2324-10-0x0000021B83EB0000-0x0000021B83EB7000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 47 2324 rundll32.exe 49 2324 rundll32.exe 50 3732 rundll32.exe 51 3732 rundll32.exe 52 744 rundll32.exe 53 744 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 2324 rundll32.exe 3732 rundll32.exe 744 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 652 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2324 rundll32.exe 2324 rundll32.exe 3732 rundll32.exe 3732 rundll32.exe 744 rundll32.exe 744 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE 652 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 652 wrote to memory of 2324 652 EXCEL.EXE 80 PID 652 wrote to memory of 2324 652 EXCEL.EXE 80 PID 652 wrote to memory of 3748 652 EXCEL.EXE 82 PID 652 wrote to memory of 3748 652 EXCEL.EXE 82 PID 652 wrote to memory of 3712 652 EXCEL.EXE 83 PID 652 wrote to memory of 3712 652 EXCEL.EXE 83 PID 652 wrote to memory of 3732 652 EXCEL.EXE 84 PID 652 wrote to memory of 3732 652 EXCEL.EXE 84 PID 652 wrote to memory of 744 652 EXCEL.EXE 85 PID 652 wrote to memory of 744 652 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-2095957312.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:652 -
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:2324
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3748
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3712
-
-
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:3732
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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:744
-