fa2c2ec137b588edf286ad4f4b35f509256499debeb854a20c89e5c80da41b72

Resubmissions

07/12/2020, 14:23

201207-57z8a97s6e8

07/12/2020, 14:15

201207-zsxkeppdee8

Analysis

max time kernel
14s
max time network
133s
platform
windows10_x64
resource
win10v20201028
submitted
07/12/2020, 14:15

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General

Target
printouts of outstanding as of 35995_12_11_2020.xlsm
Size 45KB
Sample201207-zsxkeppdee
SHA256 fa2c2ec137b588edf286ad4f4b35f509256499debeb854a20c89e5c80da41b72
MD5 9e93520c336497b327556f7b7c36d49a
SHA1 5d8c990400a9d86d0e4c60a6c14cff14f065045f
SHA512 aa39fb7f34e73e579c68494ab4ff261541aa018baf6767b9005eafa66869aef68381c57dee98326d94f7f1af4bbebd5a88f4aac46254afcc5224947105e812ec
MD5 SHA1 SHA512

Score

6^/10

Malware Config

Signatures

Process spawned suspicious child process 1 IoCs

This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2636	1100	DW20.EXE	68

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

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

Query Registry

T1012

System Information Discovery

T1082

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
1100	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1100	EXCEL.EXE
1100	EXCEL.EXE
3772	dwwin.exe
3772	dwwin.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1100	EXCEL.EXE
1100	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 2636	1100	EXCEL.EXE	76
PID 1100 wrote to memory of 2636	1100	EXCEL.EXE	76
PID 2636 wrote to memory of 3772	2636	DW20.EXE	77
PID 2636 wrote to memory of 3772	2636	DW20.EXE	77

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\printouts of outstanding as of 35995_12_11_2020.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE
  "C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 4736
  2⤵
  - Process spawned suspicious child process
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\system32\dwwin.exe
    C:\Windows\system32\dwwin.exe -x -s 4736
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3772

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1100-2-0x00007FFE6D640000-0x00007FFE6DC77000-memory.dmp

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memory/1100-6-0x00000216597CC000-0x00000216597D1000-memory.dmp

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memory/1100-7-0x000002165C5D1000-0x000002165C60F000-memory.dmp

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memory/1100-8-0x000002165C5D1000-0x000002165C60F000-memory.dmp

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memory/1100-9-0x000002165C5D1000-0x000002165C60F000-memory.dmp

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memory/1100-10-0x000002165C7DE000-0x000002165C848000-memory.dmp

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memory/3772-13-0x000001A50D6A0000-0x000001A50D6A1000-memory.dmp

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memory/3772-14-0x000001A50D6A0000-0x000001A50D6A1000-memory.dmp

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memory/3772-16-0x000001A50DCE0000-0x000001A50DCE1000-memory.dmp

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memory/3772-19-0x000001A50DFF0000-0x000001A50DFF1000-memory.dmp

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memory/3772-20-0x000001A50DFF0000-0x000001A50DFF1000-memory.dmp

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memory/3772-21-0x000001A50DFF0000-0x000001A50DFF1000-memory.dmp

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memory/3772-22-0x000001A50DC20000-0x000001A50DC23000-memory.dmp

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