3f2c0b00d9380b4d4de3ac6ce7398aa7d807783652442d84be7c5fe6200ad063

General

Target

3f2c0b00d9380b4d4de3ac6ce7398aa7d807783652442d84be7c5fe6200ad063.xls
Size

135KB
MD5

a8d70882b3b3ff024c06336db0309bc4
SHA1

cc15626fe6613e0550a97f9cb574a65a5180816a
SHA256

3f2c0b00d9380b4d4de3ac6ce7398aa7d807783652442d84be7c5fe6200ad063
SHA512

279492184ff711a43e47b6b267e8ea9b59c82cae9f72a38c5d18bc6d4d4f005388b7041de74bdd699a4bb4958e2fdffa0cd21ec2353234f9041799354a800650
SSDEEP

1536:Gt44n0o4g0hmVnLziCdymRxoiKTM4O+Ky2fsqITzrWCBE+Mvi2ytWVbrzQ7ITkaJ:4aziCQ8WVbrzQ7ITkZYrjhJtXwy1H

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	5060	5100	cmd.exe	80
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1304	5100	cmd.exe	80
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4540	5100	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\0CC65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5100	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE
5100	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5100 wrote to memory of 5060	5100	EXCEL.EXE	83
PID 5100 wrote to memory of 5060	5100	EXCEL.EXE	83
PID 5100 wrote to memory of 1304	5100	EXCEL.EXE	84
PID 5100 wrote to memory of 1304	5100	EXCEL.EXE	84
PID 5100 wrote to memory of 4540	5100	EXCEL.EXE	87
PID 5100 wrote to memory of 4540	5100	EXCEL.EXE	87
PID 5060 wrote to memory of 3176	5060	cmd.exe	89
PID 5060 wrote to memory of 3176	5060	cmd.exe	89

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3176	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\3f2c0b00d9380b4d4de3ac6ce7398aa7d807783652442d84be7c5fe6200ad063.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:5100
- 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:5060
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:3176
- 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:1304
- 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:4540

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1304-140-0x0000000000000000-mapping.dmp

Download
memory/3176-142-0x0000000000000000-mapping.dmp

Download
memory/4540-141-0x0000000000000000-mapping.dmp

Download
memory/5060-139-0x0000000000000000-mapping.dmp

Download
memory/5100-136-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

Filesize
64KB

Download
memory/5100-137-0x00007FFDF8030000-0x00007FFDF8040000-memory.dmp

Filesize
64KB

Download
memory/5100-138-0x00007FFDF8030000-0x00007FFDF8040000-memory.dmp

Filesize
64KB

Download
memory/5100-132-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

Filesize
64KB

Download
memory/5100-135-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

Filesize
64KB

Download
memory/5100-134-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

Filesize
64KB

Download
memory/5100-133-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

Filesize
64KB

Download
memory/5100-143-0x000001EE0BBBD000-0x000001EE0BBBF000-memory.dmp

Filesize
8KB

Download
memory/5100-144-0x000001EE06AD3000-0x000001EE06AD5000-memory.dmp

Filesize
8KB

Download
memory/5100-146-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

Filesize
64KB

Download
memory/5100-147-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

Filesize
64KB

Download
memory/5100-148-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

Filesize
64KB

Download
memory/5100-149-0x00007FFDFA5B0000-0x00007FFDFA5C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads