e62e827c3158ed598b12f10cf3d4627156992f7a8bf372183b720cd35e808f2f

General

Target

175fb8c275fa60831cc28fcc012d8432.xls
Size

105KB
MD5

175fb8c275fa60831cc28fcc012d8432
SHA1

838ffd4200a641e2dfd9d5e186b626931639a18b
SHA256

e62e827c3158ed598b12f10cf3d4627156992f7a8bf372183b720cd35e808f2f
SHA512

9e13eb544461be8629fb153eb579ddaccc9bc97bcf61385eeaa51bce307136c3be33b4f0c50bdb375e1697b62a39be8b28a0d000c9fc623a4c5250028c65eee1
SSDEEP

1536:bV44443CTICiGr9HhqRJszxSQKZ95OW1V4EWVbrzQ71avTkiD2S1O/WwF1J3M2MT:wwWVbrzQ74vTkDeMe5kbin

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	3476	4888	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1984	4888	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4256	4888	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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\9E865E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4888 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\9E865E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE
4888	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4888 wrote to memory of 3476	4888	EXCEL.EXE	cmd.exe
PID 4888 wrote to memory of 3476	4888	EXCEL.EXE	cmd.exe
PID 4888 wrote to memory of 4256	4888	EXCEL.EXE	cmd.exe
PID 4888 wrote to memory of 4256	4888	EXCEL.EXE	cmd.exe
PID 4888 wrote to memory of 1984	4888	EXCEL.EXE	cmd.exe
PID 4888 wrote to memory of 1984	4888	EXCEL.EXE	cmd.exe
PID 3476 wrote to memory of 4240	3476	cmd.exe	attrib.exe
PID 3476 wrote to memory of 4240	3476	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4240 attrib.exe

pid	process
4240	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\175fb8c275fa60831cc28fcc012d8432.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:4888

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:3476

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4240

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:1984

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:4256

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/1984-141-0x0000000000000000-mapping.dmp

Download
memory/3476-139-0x0000000000000000-mapping.dmp

Download
memory/4240-142-0x0000000000000000-mapping.dmp

Download
memory/4256-140-0x0000000000000000-mapping.dmp

Download
memory/4888-136-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/4888-137-0x00007FFAB5780000-0x00007FFAB5790000-memory.dmp

Filesize
64KB

Download
memory/4888-138-0x00007FFAB5780000-0x00007FFAB5790000-memory.dmp

Filesize
64KB

Download
memory/4888-132-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/4888-135-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/4888-134-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/4888-133-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/4888-143-0x000001A852C75000-0x000001A852C77000-memory.dmp

Filesize
8KB

Download
memory/4888-144-0x000001A852C75000-0x000001A852C77000-memory.dmp

Filesize
8KB

Download
memory/4888-148-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/4888-149-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/4888-147-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/4888-146-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads