16e5600952221d1090001543f5d1d3f4cf24adeb803ebdacb58d9d894c76ff41

General

Target

16e5600952221d1090001543f5d1d3f4cf24adeb803ebdacb58d9d894c76ff41.xls
Size

375KB
MD5

dedd5bc445210836e83d2d4854de4d2b
SHA1

68b26ad29cb67bd22418c65c8842bc3bd9717a71
SHA256

16e5600952221d1090001543f5d1d3f4cf24adeb803ebdacb58d9d894c76ff41
SHA512

6518898c2fa7d2c1183f0d404be916d38ae23a9afb9a78f46d0df7c9440dffcc9a60b98a51ad7fffa55ccf06fdc05a7efbed4cfae72c6fe9cff0b7fd9e248287
SSDEEP

6144:hRkG2FAX49WcvLCpVpUNqxJFQhQQHBCI:3NuAXqWYCpV20F7Q

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	4248	2424	cmd.exe	78
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4956	2424	cmd.exe	78
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3088	2424	cmd.exe	78

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 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	EXCEL.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\DC965E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2424	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE
2424	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 4248	2424	EXCEL.EXE	81
PID 2424 wrote to memory of 4248	2424	EXCEL.EXE	81
PID 2424 wrote to memory of 4956	2424	EXCEL.EXE	82
PID 2424 wrote to memory of 4956	2424	EXCEL.EXE	82
PID 2424 wrote to memory of 3088	2424	EXCEL.EXE	85
PID 2424 wrote to memory of 3088	2424	EXCEL.EXE	85
PID 4248 wrote to memory of 2692	4248	cmd.exe	87
PID 4248 wrote to memory of 2692	4248	cmd.exe	87

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2692	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\16e5600952221d1090001543f5d1d3f4cf24adeb803ebdacb58d9d894c76ff41.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:2424
- 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:4248
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:2692
- 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:4956
- 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:3088

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/2424-144-0x0000021AB9D03000-0x0000021AB9D05000-memory.dmp

Filesize
8KB

Download
memory/2424-146-0x0000021AB9D03000-0x0000021AB9D05000-memory.dmp

Filesize
8KB

Download
memory/2424-134-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/2424-151-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/2424-136-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/2424-137-0x00007FFBF3960000-0x00007FFBF3970000-memory.dmp

Filesize
64KB

Download
memory/2424-138-0x00007FFBF3960000-0x00007FFBF3970000-memory.dmp

Filesize
64KB

Download
memory/2424-150-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/2424-133-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/2424-149-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/2424-135-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/2424-143-0x0000021AB9B77000-0x0000021AB9B79000-memory.dmp

Filesize
8KB

Download
memory/2424-132-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/2424-148-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/2424-145-0x0000021AB9B77000-0x0000021AB9B79000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads