833d437da7afdaa0195adb30f8318a2256a827744398d7fe4d026f3bfddd2137

General

Target

2c6de793afa51e0f3a81d3c517b4d3babe74a05a.xls
Size

205KB
MD5

18f5c436d4f62ae1398c10dbcbdf401d
SHA1

2c6de793afa51e0f3a81d3c517b4d3babe74a05a
SHA256

833d437da7afdaa0195adb30f8318a2256a827744398d7fe4d026f3bfddd2137
SHA512

e263b51dd516e6fc2a0746c4327455f1a8fa986f69999daf16a4ee4442b35c63ff3f8d300f24f3998b7306515897855e592ea4d01f66fab5f9ba06c071ddf1fc
SSDEEP

6144:Lk3hbdlylKsgqopeJBWhZFVE+W2NdAgl8NiiLlUNe65x3Z1YQpeX+3Mt:qGI7JhbYQpA+8t

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

Signatures

Process spawned unexpected child process 1 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	2984	1016	WerFault.exe	83

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	3720	1016	DW20.EXE	83

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2984	1016	WerFault.exe	83

Checks processor information in registry 2 TTPs 6 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dwwin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dwwin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dwwin.exe

Enumerates system info in registry 2 TTPs 5 IoCs

Query Registry

T1012

System Information Discovery

T1082

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	dwwin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dwwin.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1016	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1016	EXCEL.EXE
1016	EXCEL.EXE
1016	EXCEL.EXE
1016	EXCEL.EXE

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1016	EXCEL.EXE
1016	EXCEL.EXE
1016	EXCEL.EXE
1016	EXCEL.EXE
1016	EXCEL.EXE
1016	EXCEL.EXE
1016	EXCEL.EXE
1016	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1016 wrote to memory of 3720	1016	EXCEL.EXE	89
PID 1016 wrote to memory of 3720	1016	EXCEL.EXE	89
PID 3720 wrote to memory of 2080	3720	DW20.EXE	90
PID 3720 wrote to memory of 2080	3720	DW20.EXE	90

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\2c6de793afa51e0f3a81d3c517b4d3babe74a05a.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1016
- 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 4460
  2⤵
  - Process spawned suspicious child process
  - Suspicious use of WriteProcessMemory
  PID:3720
- - C:\Windows\system32\dwwin.exe
    C:\Windows\system32\dwwin.exe -x -s 4460
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:2080
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1016 -s 4468
  2⤵
  - Process spawned unexpected child process
  - Program crash
  PID:2984

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 456 -p 1016 -ip 1016
1⤵
PID:4860

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1016-138-0x00007FF8D50A0000-0x00007FF8D50B0000-memory.dmp

Filesize
64KB

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memory/1016-133-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/1016-134-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/1016-135-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/1016-136-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/1016-137-0x00007FF8D50A0000-0x00007FF8D50B0000-memory.dmp

Filesize
64KB

Download
memory/1016-132-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3720-147-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3720-146-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3720-148-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3720-149-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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