277e67a02f5f9982f486f0a40445b5b3e0520c27d573f1026baab0f631fc9351

General

Target

277e67a02f5f9982f486f0a40445b5b3e0520c27d573f1026baab0f631fc9351.xls
Size

245KB
MD5

cc6233e744f6645c544bf6ef16f3d049
SHA1

a23175cd33c0a06c243194d0db397a8d0e9aa45e
SHA256

277e67a02f5f9982f486f0a40445b5b3e0520c27d573f1026baab0f631fc9351
SHA512

ecd4b2d501cb4f9ce737f82ed5de08cfdae3dfb3ecfd15c7f2f9dd2ed069cb7dfbd720a2a5c26964dd51d560153387458d46ce7ebecb3577bc47d6493464a5ad
SSDEEP

3072:SGbZESn1o84cygtUNUw5p7JZ7MvbxqohtLXvULUC6WVbB3zQ7ITk9n/MJtXwo5kE:SGbZz1xygtq7JZ7Mvbxqohtioa0

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	2944	4824	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1840	4824	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2420	4824	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 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

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\C9375E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4824 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\C9375E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4824 wrote to memory of 2944	4824	EXCEL.EXE	cmd.exe
PID 4824 wrote to memory of 2944	4824	EXCEL.EXE	cmd.exe
PID 4824 wrote to memory of 1840	4824	EXCEL.EXE	cmd.exe
PID 4824 wrote to memory of 1840	4824	EXCEL.EXE	cmd.exe
PID 4824 wrote to memory of 2420	4824	EXCEL.EXE	cmd.exe
PID 4824 wrote to memory of 2420	4824	EXCEL.EXE	cmd.exe
PID 2944 wrote to memory of 1304	2944	cmd.exe	attrib.exe
PID 2944 wrote to memory of 1304	2944	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1304 attrib.exe

pid	process
1304	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\277e67a02f5f9982f486f0a40445b5b3e0520c27d573f1026baab0f631fc9351.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:4824

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:2944

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

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:1840

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:2420

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1304-142-0x0000000000000000-mapping.dmp

Download
memory/1840-140-0x0000000000000000-mapping.dmp

Download
memory/2420-141-0x0000000000000000-mapping.dmp

Download
memory/2944-139-0x0000000000000000-mapping.dmp

Download
memory/4824-136-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4824-137-0x00007FFA2FA60000-0x00007FFA2FA70000-memory.dmp

Filesize
64KB

Download
memory/4824-138-0x00007FFA2FA60000-0x00007FFA2FA70000-memory.dmp

Filesize
64KB

Download
memory/4824-132-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4824-135-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4824-134-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4824-133-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4824-143-0x00000149F8AF0000-0x00000149F8AF2000-memory.dmp

Filesize
8KB

Download
memory/4824-144-0x00000149F8AF0000-0x00000149F8AF2000-memory.dmp

Filesize
8KB

Download
memory/4824-146-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4824-147-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4824-148-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4824-149-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads