Analysis
- max time kernel
134s - max time network
133s - platform
windows10_x64 - resource
win10v20201028 - submitted
31/03/2021, 03:39
Static task
static1
Behavioral task
behavioral1
Sample
document-1862023781.xlsm
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1862023781.xlsm
Resource
win10v20201028
0 signatures
0 seconds
General
- Target document-1862023781.xlsm
- Size 105KB
- Sample210331-6v2bxt1djj
- SHA256 657cf1a2b72d79ba777bb5536d0cbfe0b2f485ad73de4663c5b9f50501aae38e
- MD5 ae987ff47fcb343c4a9387d1318e87ee
- SHA1 29b02c94bd889f0d594978a99525c8a6481a1bb0
- SHA512 29f763a190cf9205b0dde70c5603038542af3f635ba577c5eb7aae7717bc9b9aef55f93ec2a78cb388e25c6545d718d00e93ad09e1023bcf28167e1dcc092ab6
- 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 400 3920 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2500 3920 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1808 3920 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1972 3920 rundll32.exe 67 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 732 3920 rundll32.exe 67 - IcedID First Stage Loader 1 IoCs
resource yara_rule behavioral2/memory/400-10-0x000002610FAE0000-0x000002610FAE7000-memory.dmp IcedidFirstLoader - Blocklisted process makes network request 6 IoCs
flow pid Process 45 400 rundll32.exe 47 400 rundll32.exe 48 1972 rundll32.exe 49 1972 rundll32.exe 51 732 rundll32.exe 52 732 rundll32.exe - Loads dropped DLL 3 IoCs
pid Process 400 rundll32.exe 1972 rundll32.exe 732 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\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3920 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 400 rundll32.exe 400 rundll32.exe 1972 rundll32.exe 1972 rundll32.exe 732 rundll32.exe 732 rundll32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3920 wrote to memory of 400 3920 EXCEL.EXE 81 PID 3920 wrote to memory of 400 3920 EXCEL.EXE 81 PID 3920 wrote to memory of 2500 3920 EXCEL.EXE 82 PID 3920 wrote to memory of 2500 3920 EXCEL.EXE 82 PID 3920 wrote to memory of 1808 3920 EXCEL.EXE 83 PID 3920 wrote to memory of 1808 3920 EXCEL.EXE 83 PID 3920 wrote to memory of 1972 3920 EXCEL.EXE 84 PID 3920 wrote to memory of 1972 3920 EXCEL.EXE 84 PID 3920 wrote to memory of 732 3920 EXCEL.EXE 85 PID 3920 wrote to memory of 732 3920 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-1862023781.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3920 -
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:400
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2500
-
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\ksjvoefv.skd2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1808
-
-
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:1972
-
-
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:732
-