Analysis
- max time kernel
138s - max time network
130s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 04:05
Static task
static1
Behavioral task
behavioral1
Sample
document-442653383.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-442653383.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-442653383.xlsm
- Size 105KB
- Sample210331-7v2txmfyyx
- SHA256 36ede5958dd8e579780bdeb0c06386ebec8fa77e166477ff93c139a79c1595b2
- MD5 f95c458e15de49c19ac9dcc1ab6203bc
- SHA1 400f6313721d10ea43ba4582a4ed730c79d4d9a5
- SHA512 390d1e20625993b19804c4c2f81583a8345fca8e3141fcedd9b0b4552e40d78dee7890e78b7bd4623995f46e7c6134d13d12eccf92a22e4828ddc8a666d58aa2
- 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 2576 4092 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4068 4092 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4056 4092 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2456 4092 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1872 4092 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/2576-10-0x000001D5FFDF0000-0x000001D5FFDF7000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 38 2576 rundll32.exe 40 2576 rundll32.exe 42 2456 rundll32.exe 44 2456 rundll32.exe 49 1872 rundll32.exe 50 1872 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 2576 rundll32.exe 2456 rundll32.exe 1872 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4092 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2576 rundll32.exe 2576 rundll32.exe 2456 rundll32.exe 2456 rundll32.exe 1872 rundll32.exe 1872 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE 4092 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4092 wrote to memory of 2576 4092 EXCEL.EXE 80 PID 4092 wrote to memory of 2576 4092 EXCEL.EXE 80 PID 4092 wrote to memory of 4068 4092 EXCEL.EXE 82 PID 4092 wrote to memory of 4068 4092 EXCEL.EXE 82 PID 4092 wrote to memory of 4056 4092 EXCEL.EXE 83 PID 4092 wrote to memory of 4056 4092 EXCEL.EXE 83 PID 4092 wrote to memory of 2456 4092 EXCEL.EXE 84 PID 4092 wrote to memory of 2456 4092 EXCEL.EXE 84 PID 4092 wrote to memory of 1872 4092 EXCEL.EXE 85 PID 4092 wrote to memory of 1872 4092 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-442653383.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4092 -
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:2576
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4068
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-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:4056
-
-
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:2456
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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:1872
-