02bf7d1e4c52e9d41e75797dee71710d3facfeb32e2481edc9a367e7c06ac4b7

General

Target

02bf7d1e4c52e9d41e75797dee71710d3facfeb32e2481edc9a367e7c06ac4b7.xls
Size

118KB
MD5

153476d6a5b62e27d0d2e4d971bfe1ca
SHA1

00a16785e74f79198fe6ea71f1e3b748dec6dab4
SHA256

02bf7d1e4c52e9d41e75797dee71710d3facfeb32e2481edc9a367e7c06ac4b7
SHA512

d86d3acefc326b5e0f43f1e2de8035a5343aca9f72d5fb50df72fce1ebe463491f185340131e646d423b5ccc6cc260b6ef08d7f129766a1a25be35ba2e792642
SSDEEP

3072:i+l6Nc7yRzs1H75wkZUgsQ6NqTBun5oTAKWVbrzQ7ITk3Unu/JtXwiyF3:Rl6Nc7yRzs1H75wkZUgsQ6NqTBun5okt

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	784	3044	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	308	3044	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	220	3044	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3044 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE
3044	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 3044 wrote to memory of 784	3044	EXCEL.EXE	cmd.exe
PID 3044 wrote to memory of 784	3044	EXCEL.EXE	cmd.exe
PID 3044 wrote to memory of 308	3044	EXCEL.EXE	cmd.exe
PID 3044 wrote to memory of 308	3044	EXCEL.EXE	cmd.exe
PID 3044 wrote to memory of 220	3044	EXCEL.EXE	cmd.exe
PID 3044 wrote to memory of 220	3044	EXCEL.EXE	cmd.exe
PID 784 wrote to memory of 3484	784	cmd.exe	attrib.exe
PID 784 wrote to memory of 3484	784	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3484 attrib.exe

pid	process
3484	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\02bf7d1e4c52e9d41e75797dee71710d3facfeb32e2481edc9a367e7c06ac4b7.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3044
- 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:784
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:3484
- 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:308
- 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:220

C:\Windows\system32\werfault.exe
werfault.exe /h /shared Global\37b71ac2bd6a41489378533b1ccd63b5 /t 2800 /p 3044
1⤵
PID:2368

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/220-141-0x0000000000000000-mapping.dmp

Download
memory/308-140-0x0000000000000000-mapping.dmp

Download
memory/784-139-0x0000000000000000-mapping.dmp

Download
memory/3044-132-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/3044-133-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/3044-134-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/3044-135-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/3044-136-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/3044-137-0x00007FF832E40000-0x00007FF832E50000-memory.dmp

Filesize
64KB

Download
memory/3044-138-0x00007FF832E40000-0x00007FF832E50000-memory.dmp

Filesize
64KB

Download
memory/3484-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads