3f549515d70469e8d6f0ccda16800809cc6dba12bf7bb9a6d73a88d989f85bf2

General

Target

3f549515d70469e8d6f0ccda16800809cc6dba12bf7bb9a6d73a88d989f85bf2.xls
Size

110KB
MD5

9d10f3b18f8e0ec1cacc4827442589ab
SHA1

0ea1008c8d1d22a0f2130384f94ae20c4d7defec
SHA256

3f549515d70469e8d6f0ccda16800809cc6dba12bf7bb9a6d73a88d989f85bf2
SHA512

bd9803417a8780420ecc61ca96485393f4a3e0ccb912bba333dc6a88ca43ce82042525dea225df7f99809741ce95298135a58aba69e254f70d1c0b270c6b943b
SSDEEP

1536:GoooEnLzidCKMTmiRooxyVmQxg9Z95T6DzcRdhx4zUBWVbreKZ6YQ7ITkiD2PQOD:y+DgRdJWVbreqZQ7ITkDoM1z5kSJ

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 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	1480	4532	cmd.exe	80
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4608	4532	cmd.exe	80
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1812	4532	cmd.exe	80

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

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\4AD65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4532	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE
4532	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 1480	4532	EXCEL.EXE	83
PID 4532 wrote to memory of 1480	4532	EXCEL.EXE	83
PID 4532 wrote to memory of 4608	4532	EXCEL.EXE	85
PID 4532 wrote to memory of 4608	4532	EXCEL.EXE	85
PID 4532 wrote to memory of 1812	4532	EXCEL.EXE	86
PID 4532 wrote to memory of 1812	4532	EXCEL.EXE	86
PID 1480 wrote to memory of 2216	1480	cmd.exe	89
PID 1480 wrote to memory of 2216	1480	cmd.exe	89

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2216	attrib.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\3f549515d70469e8d6f0ccda16800809cc6dba12bf7bb9a6d73a88d989f85bf2.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4532
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1480
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:2216
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  PID:4608
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  PID:1812

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

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/4532-144-0x000002440ABE8000-0x000002440ABEA000-memory.dmp

Filesize
8KB

Download
memory/4532-133-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/4532-137-0x00007FFE81370000-0x00007FFE81380000-memory.dmp

Filesize
64KB

Download
memory/4532-138-0x00007FFE81370000-0x00007FFE81380000-memory.dmp

Filesize
64KB

Download
memory/4532-135-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/4532-149-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/4532-134-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/4532-136-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/4532-143-0x000002440ABE8000-0x000002440ABEA000-memory.dmp

Filesize
8KB

Download
memory/4532-132-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/4532-146-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/4532-147-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download
memory/4532-148-0x00007FFE83C30000-0x00007FFE83C40000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads