b2fe1046682524eceb6eab4f99dcdd652d6777300eb3d2c161fc082df3c52d1f

General

Target

b2fe1046682524eceb6eab4f99dcdd652d6777300eb3d2c161fc082df3c52d1f.xls
Size

47KB
MD5

af897e492a6d2b636dd51217efc3464e
SHA1

cbe495b937bfaaba9b11f57ec9112b18c04a6b2d
SHA256

b2fe1046682524eceb6eab4f99dcdd652d6777300eb3d2c161fc082df3c52d1f
SHA512

24ae65719eca653db8bd3bfccddae1f0b51f74fb362f89cde1fb096a72fc1f6118a14fed887602240258d8b11eee6b208c9783ed607c3e8e3edbc2c8aab0ea05
SSDEEP

384:6+LbiwXmQ9MTjCpDa4sy6LCfFwlbciAfQMaViUItq7iiWfIA/XC:6+Lbix7/Cla4gLCfWxci5MhUItdrBXC

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.

Processes:

DW20.EXE

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2952	3352	DW20.EXE	EXCEL.EXE

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

Processes:

EXCEL.EXEdwwin.exe

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

Processes:

dwwin.exeEXCEL.EXE

description	ioc	process
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
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

Processes:

EXCEL.EXE

pid process

3352 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

EXCEL.EXE

pid process

3352 EXCEL.EXE
3352 EXCEL.EXE
3352 EXCEL.EXE
3352 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3352	EXCEL.EXE
3352	EXCEL.EXE
3352	EXCEL.EXE
3352	EXCEL.EXE
3352	EXCEL.EXE
3352	EXCEL.EXE
3352	EXCEL.EXE
3352	EXCEL.EXE
3352	EXCEL.EXE
3352	EXCEL.EXE
3352	EXCEL.EXE
3352	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEDW20.EXE

description	pid	process	target process
PID 3352 wrote to memory of 2952	3352	EXCEL.EXE	DW20.EXE
PID 3352 wrote to memory of 2952	3352	EXCEL.EXE	DW20.EXE
PID 2952 wrote to memory of 1296	2952	DW20.EXE	dwwin.exe
PID 2952 wrote to memory of 1296	2952	DW20.EXE	dwwin.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\b2fe1046682524eceb6eab4f99dcdd652d6777300eb3d2c161fc082df3c52d1f.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:3352

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 4828
2⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2952

C:\Windows\system32\dwwin.exe
C:\Windows\system32\dwwin.exe -x -s 4828
3⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:1296

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1296-146-0x0000000000000000-mapping.dmp

Download
memory/2952-140-0x0000000000000000-mapping.dmp

Download
memory/2952-151-0x00007FF9E06B0000-0x00007FF9E06C0000-memory.dmp

Filesize
64KB

Download
memory/2952-150-0x00007FF9E06B0000-0x00007FF9E06C0000-memory.dmp

Filesize
64KB

Download
memory/2952-149-0x00007FF9E06B0000-0x00007FF9E06C0000-memory.dmp

Filesize
64KB

Download
memory/2952-148-0x00007FF9E06B0000-0x00007FF9E06C0000-memory.dmp

Filesize
64KB

Download
memory/3352-135-0x00007FF9E06B0000-0x00007FF9E06C0000-memory.dmp

Filesize
64KB

Download
memory/3352-139-0x00000265442CB000-0x00000265442CD000-memory.dmp

Filesize
8KB

Download
memory/3352-138-0x00007FF9DE600000-0x00007FF9DE610000-memory.dmp

Filesize
64KB

Download
memory/3352-137-0x00007FF9DE600000-0x00007FF9DE610000-memory.dmp

Filesize
64KB

Download
memory/3352-147-0x00000265442CB000-0x00000265442CD000-memory.dmp

Filesize
8KB

Download
memory/3352-136-0x00007FF9E06B0000-0x00007FF9E06C0000-memory.dmp

Filesize
64KB

Download
memory/3352-132-0x00007FF9E06B0000-0x00007FF9E06C0000-memory.dmp

Filesize
64KB

Download
memory/3352-133-0x00007FF9E06B0000-0x00007FF9E06C0000-memory.dmp

Filesize
64KB

Download
memory/3352-134-0x00007FF9E06B0000-0x00007FF9E06C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads