a95de40a4186a1ca2d8133a297df6986cc5237113fe4547d5fa9e96818e6203a

General

Target

a95de40a4186a1ca2d8133a297df6986cc5237113fe4547d5fa9e96818e6203a.xls
Size

92KB
MD5

ea29b0a3a0c9f6fcf5d86f129893b504
SHA1

761793e49cd694cd7c30d1ce166fd6791cddf67d
SHA256

a95de40a4186a1ca2d8133a297df6986cc5237113fe4547d5fa9e96818e6203a
SHA512

080511bed324aca266ba924a2a56ebe372b299f74573081f0efc90196f4a52fe63e244ac1a1ef88fba20a0648cba610426fd87747d6127b2dba998ec728092cd
SSDEEP

1536:gFFFFpX0t6n53/9v64daUl5n2jcc0lbxOvTgZFcfraWWt2XKBriwNM3b:kb2jcc0lbxOrLjbadicM3b

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	408	4956	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4376	4956	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3408	4956	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\A6E65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4956	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE
4956	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 408	4956	EXCEL.EXE	81
PID 4956 wrote to memory of 408	4956	EXCEL.EXE	81
PID 4956 wrote to memory of 4376	4956	EXCEL.EXE	83
PID 4956 wrote to memory of 4376	4956	EXCEL.EXE	83
PID 4956 wrote to memory of 3408	4956	EXCEL.EXE	85
PID 4956 wrote to memory of 3408	4956	EXCEL.EXE	85
PID 408 wrote to memory of 1920	408	cmd.exe	87
PID 408 wrote to memory of 1920	408	cmd.exe	87

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1920	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\a95de40a4186a1ca2d8133a297df6986cc5237113fe4547d5fa9e96818e6203a.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:4956
- 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:408
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:1920
- 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:4376
- 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:3408

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/4956-136-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4956-143-0x0000021CE027C000-0x0000021CE027E000-memory.dmp

Filesize
8KB

Download
memory/4956-138-0x00007FFB61FD0000-0x00007FFB61FE0000-memory.dmp

Filesize
64KB

Download
memory/4956-132-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4956-135-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4956-134-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4956-133-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4956-137-0x00007FFB61FD0000-0x00007FFB61FE0000-memory.dmp

Filesize
64KB

Download
memory/4956-144-0x0000021CE0329000-0x0000021CE032B000-memory.dmp

Filesize
8KB

Download
memory/4956-145-0x0000021CE027C000-0x0000021CE027E000-memory.dmp

Filesize
8KB

Download
memory/4956-147-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4956-148-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4956-149-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/4956-150-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads