748a1238bb08fa09e20b0b4e7047b1910aaa7a691085a3df3301cb92b4836199

General

Target

748a1238bb08fa09e20b0b4e7047b1910aaa7a691085a3df3301cb92b4836199.xls
Size

108KB
MD5

eeed12dc63ada2acb35b0c04b8c5a293
SHA1

7477fec5fe0601c30fcdc99c2818f6301f2a6f30
SHA256

748a1238bb08fa09e20b0b4e7047b1910aaa7a691085a3df3301cb92b4836199
SHA512

ace3a8d615c3e9f2b1ed635fa33edaf924fdfe8b243f403b3faa7c0a47cd2b7d2a2879ce5cc69ff85e387d1f304dc3855f59e58c8b360f8dec68d1cea379a0fa
SSDEEP

1536:1dddTwSuGX3oHTEkdXPmJA5xRZ1zlY2WZ95tavWGysZcglnUWVbrzQ7IC8cpDuk9:K8GyScRWVbrzQ7ITcDukZljhJtXwS1

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.

Processes:

cmd.execmd.execmd.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	1868	2824	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2144	2824	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3720	2824	cmd.exe	EXCEL.EXE

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

Processes:

EXCEL.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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\27F65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2824 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\27F65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2824	EXCEL.EXE
2824	EXCEL.EXE
2824	EXCEL.EXE
2824	EXCEL.EXE
2824	EXCEL.EXE
2824	EXCEL.EXE
2824	EXCEL.EXE
2824	EXCEL.EXE
2824	EXCEL.EXE
2824	EXCEL.EXE
2824	EXCEL.EXE
2824	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2824 wrote to memory of 1868	2824	EXCEL.EXE	cmd.exe
PID 2824 wrote to memory of 1868	2824	EXCEL.EXE	cmd.exe
PID 2824 wrote to memory of 2144	2824	EXCEL.EXE	cmd.exe
PID 2824 wrote to memory of 2144	2824	EXCEL.EXE	cmd.exe
PID 2824 wrote to memory of 3720	2824	EXCEL.EXE	cmd.exe
PID 2824 wrote to memory of 3720	2824	EXCEL.EXE	cmd.exe
PID 1868 wrote to memory of 4632	1868	cmd.exe	attrib.exe
PID 1868 wrote to memory of 4632	1868	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4632 attrib.exe

pid	process
4632	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\748a1238bb08fa09e20b0b4e7047b1910aaa7a691085a3df3301cb92b4836199.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:2824
- 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:1868
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:4632
- 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:2144
- 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:3720

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

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Downloads

memory/1868-139-0x0000000000000000-mapping.dmp

Download
memory/2144-140-0x0000000000000000-mapping.dmp

Download
memory/2824-136-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/2824-144-0x0000022557854000-0x0000022557856000-memory.dmp

Filesize
8KB

Download
memory/2824-132-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/2824-137-0x00007FFFA5560000-0x00007FFFA5570000-memory.dmp

Filesize
64KB

Download
memory/2824-138-0x00007FFFA5560000-0x00007FFFA5570000-memory.dmp

Filesize
64KB

Download
memory/2824-134-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/2824-133-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/2824-149-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/2824-148-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/2824-143-0x0000022557854000-0x0000022557856000-memory.dmp

Filesize
8KB

Download
memory/2824-135-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/2824-146-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/2824-147-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/3720-141-0x0000000000000000-mapping.dmp

Download
memory/4632-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads