266c90503b64e989cc25668a98c5b574070c3e95e192e27cad209b502408351f

General

Target

266c90503b64e989cc25668a98c5b574070c3e95e192e27cad209b502408351f.xls
Size

149KB
MD5

045173f653be2ba94d61c72aa2522a50
SHA1

2ff7e27f5f141e63babbe244fdfa6f61337fbac6
SHA256

266c90503b64e989cc25668a98c5b574070c3e95e192e27cad209b502408351f
SHA512

c9d956898b7909aec19ce2992f6cfb5a4c6785cc277e46e41222e644ee7cf3a2aef45b42287d9fa3c03a78d16b69520bfcf10553dcd45471098fb2728d04c066
SSDEEP

1536:S666LuWCOqeHqYfMf5PAzzpUvWBFysec/IFoYdNn2jcc0lbxOvTgZbzG8WWt2XK+:di5PAzzmvqFyvn2jcc0lbxOrsGBaG5

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	4420	1436	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	320	1436	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1992	1436	cmd.exe	79

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\5EE65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1436	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1436	EXCEL.EXE
1436	EXCEL.EXE
1436	EXCEL.EXE
1436	EXCEL.EXE
1436	EXCEL.EXE
1436	EXCEL.EXE
1436	EXCEL.EXE
1436	EXCEL.EXE
1436	EXCEL.EXE
1436	EXCEL.EXE
1436	EXCEL.EXE
1436	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 1992	1436	EXCEL.EXE	86
PID 1436 wrote to memory of 1992	1436	EXCEL.EXE	86
PID 1436 wrote to memory of 4420	1436	EXCEL.EXE	83
PID 1436 wrote to memory of 4420	1436	EXCEL.EXE	83
PID 1436 wrote to memory of 320	1436	EXCEL.EXE	84
PID 1436 wrote to memory of 320	1436	EXCEL.EXE	84
PID 1992 wrote to memory of 4708	1992	cmd.exe	89
PID 1992 wrote to memory of 4708	1992	cmd.exe	89

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4708	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\266c90503b64e989cc25668a98c5b574070c3e95e192e27cad209b502408351f.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:1436
- 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:4420
- 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:320
- 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:1992
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:4708

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/1436-136-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1436-149-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1436-135-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1436-132-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1436-133-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1436-138-0x00007FFD656B0000-0x00007FFD656C0000-memory.dmp

Filesize
64KB

Download
memory/1436-134-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1436-148-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1436-137-0x00007FFD656B0000-0x00007FFD656C0000-memory.dmp

Filesize
64KB

Download
memory/1436-142-0x00000245A3B1B000-0x00000245A3B1D000-memory.dmp

Filesize
8KB

Download
memory/1436-147-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download
memory/1436-144-0x00000245A3B1B000-0x00000245A3B1D000-memory.dmp

Filesize
8KB

Download
memory/1436-146-0x00007FFD677B0000-0x00007FFD677C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads