1b69d146c7dd72366916077c7762216f0cb9471f7340d4798cf63f23decf53ae

General

Target

1b69d146c7dd72366916077c7762216f0cb9471f7340d4798cf63f23decf53ae.xls
Size

80KB
MD5

3902b3a08f55d5c5bd09c6bdce56e410
SHA1

ae19521054f7f35590cf4e1589e5a4a76b43b5bf
SHA256

1b69d146c7dd72366916077c7762216f0cb9471f7340d4798cf63f23decf53ae
SHA512

1a14c3d4705d8c08a4b34558a926e0a4bc34c47c84f3f1ea46083398fe4a8348f9a8d8e1856be4343a5267ae03173072cfd6f765c92d3f28ebe842d26ddfc85b
SSDEEP

1536:B8Suii1W1+aRhJ2jcc0lbxOvTgB4sY7nJdMcOu4/WwF1vnh:2Yr2jcc0lbxOrR4B/h

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	456	4172	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5060	4172	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2564	4172	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\F7965E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4172 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\F7965E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4172	EXCEL.EXE
4172	EXCEL.EXE
4172	EXCEL.EXE
4172	EXCEL.EXE
4172	EXCEL.EXE
4172	EXCEL.EXE
4172	EXCEL.EXE
4172	EXCEL.EXE
4172	EXCEL.EXE
4172	EXCEL.EXE
4172	EXCEL.EXE
4172	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4172 wrote to memory of 456	4172	EXCEL.EXE	cmd.exe
PID 4172 wrote to memory of 456	4172	EXCEL.EXE	cmd.exe
PID 4172 wrote to memory of 5060	4172	EXCEL.EXE	cmd.exe
PID 4172 wrote to memory of 5060	4172	EXCEL.EXE	cmd.exe
PID 4172 wrote to memory of 2564	4172	EXCEL.EXE	cmd.exe
PID 4172 wrote to memory of 2564	4172	EXCEL.EXE	cmd.exe
PID 456 wrote to memory of 2272	456	cmd.exe	attrib.exe
PID 456 wrote to memory of 2272	456	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2272 attrib.exe

pid	process
2272	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\1b69d146c7dd72366916077c7762216f0cb9471f7340d4798cf63f23decf53ae.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:4172

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:456

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2272

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:5060

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:2564

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/456-139-0x0000000000000000-mapping.dmp

Download
memory/2272-142-0x0000000000000000-mapping.dmp

Download
memory/2564-141-0x0000000000000000-mapping.dmp

Download
memory/4172-144-0x000001F0F0AA7000-0x000001F0F0AA9000-memory.dmp

Filesize
8KB

Download
memory/4172-133-0x00007FF9F1110000-0x00007FF9F1120000-memory.dmp

Filesize
64KB

Download
memory/4172-137-0x00007FF9EEB20000-0x00007FF9EEB30000-memory.dmp

Filesize
64KB

Download
memory/4172-138-0x00007FF9EEB20000-0x00007FF9EEB30000-memory.dmp

Filesize
64KB

Download
memory/4172-135-0x00007FF9F1110000-0x00007FF9F1120000-memory.dmp

Filesize
64KB

Download
memory/4172-149-0x00007FF9F1110000-0x00007FF9F1120000-memory.dmp

Filesize
64KB

Download
memory/4172-134-0x00007FF9F1110000-0x00007FF9F1120000-memory.dmp

Filesize
64KB

Download
memory/4172-136-0x00007FF9F1110000-0x00007FF9F1120000-memory.dmp

Filesize
64KB

Download
memory/4172-143-0x000001F0F0AA7000-0x000001F0F0AA9000-memory.dmp

Filesize
8KB

Download
memory/4172-132-0x00007FF9F1110000-0x00007FF9F1120000-memory.dmp

Filesize
64KB

Download
memory/4172-146-0x00007FF9F1110000-0x00007FF9F1120000-memory.dmp

Filesize
64KB

Download
memory/4172-147-0x00007FF9F1110000-0x00007FF9F1120000-memory.dmp

Filesize
64KB

Download
memory/4172-148-0x00007FF9F1110000-0x00007FF9F1120000-memory.dmp

Filesize
64KB

Download
memory/5060-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads