Analysis
- max time kernel
138s - max time network
138s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 03:30
Static task
static1
Behavioral task
behavioral1
Sample
document-1355434274.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1355434274.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-1355434274.xlsm
- Size 105KB
- Sample210331-bmwcc7jw3a
- SHA256 2e7e41708eab2cb298b0f32b99594f15895c0f1bf62aa3aa2d5ca58ed3762b7f
- MD5 af4ec72c6b3af771bb133b14886724cc
- SHA1 b75a5b63e217fbcb964803689dd65716d14d94f5
- SHA512 c5c3c8a078f45712772c3275b5663daa30c90f1e00f931bc3bceecc0e456296a08b6dd9e6cb1c58a2dbff6f1beb46e7fade487c1462831b9363657628d67df48
- 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 3004 744 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2384 744 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3696 744 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3000 744 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1952 744 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/3004-10-0x0000027E76AC0000-0x0000027E76AC7000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 47 3004 rundll32.exe 49 3004 rundll32.exe 50 3000 rundll32.exe 51 3000 rundll32.exe 52 1952 rundll32.exe 53 1952 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 3004 rundll32.exe 3000 rundll32.exe 1952 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 744 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3004 rundll32.exe 3004 rundll32.exe 3000 rundll32.exe 3000 rundll32.exe 1952 rundll32.exe 1952 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE 744 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 744 wrote to memory of 3004 744 EXCEL.EXE 80 PID 744 wrote to memory of 3004 744 EXCEL.EXE 80 PID 744 wrote to memory of 2384 744 EXCEL.EXE 82 PID 744 wrote to memory of 2384 744 EXCEL.EXE 82 PID 744 wrote to memory of 3696 744 EXCEL.EXE 83 PID 744 wrote to memory of 3696 744 EXCEL.EXE 83 PID 744 wrote to memory of 3000 744 EXCEL.EXE 84 PID 744 wrote to memory of 3000 744 EXCEL.EXE 84 PID 744 wrote to memory of 1952 744 EXCEL.EXE 85 PID 744 wrote to memory of 1952 744 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-1355434274.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:744 -
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:3004
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2384
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3696
-
-
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:3000
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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:1952
-