ececd0807e84c95b7d114cb07458cfdc6015f27d70657f98a099fdd2c2e1bfd4

General

Target

ececd0807e84c95b7d114cb07458cfdc6015f27d70657f98a099fdd2c2e1bfd4.xls
Size

200KB
MD5

5e7713e2751fa7557db469718be353d1
SHA1

b178e8d22a12c64e04b58c52778626dad0c36058
SHA256

ececd0807e84c95b7d114cb07458cfdc6015f27d70657f98a099fdd2c2e1bfd4
SHA512

5100bc0ee4e29d523db335163e5086b5cb863e3fe7c52bb4442db646d1edeb821396436be900830b5a64f1a4eea6b77f95280a06a1d21bdd5539cf9a2a748331
SSDEEP

3072:BRSqhKJZKmWK839SwLk2CmUITDLWQblqHoHZPPFWVbrzQ7ITcZLjhJtXwI8:fScbKyTXWQblqHoHZP3

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	3980	4684	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4912	4684	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3940	4684	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

4684 EXCEL.EXE
Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

EXCEL.EXE

pid process

4684 EXCEL.EXE
4684 EXCEL.EXE
4684 EXCEL.EXE
4684 EXCEL.EXE
4684 EXCEL.EXE
4684 EXCEL.EXE
4684 EXCEL.EXE
4684 EXCEL.EXE
4684 EXCEL.EXE

pid	process
4684	EXCEL.EXE

pid	process
4684	EXCEL.EXE
4684	EXCEL.EXE
4684	EXCEL.EXE
4684	EXCEL.EXE
4684	EXCEL.EXE
4684	EXCEL.EXE
4684	EXCEL.EXE
4684	EXCEL.EXE
4684	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4684 wrote to memory of 3980	4684	EXCEL.EXE	cmd.exe
PID 4684 wrote to memory of 3980	4684	EXCEL.EXE	cmd.exe
PID 4684 wrote to memory of 4912	4684	EXCEL.EXE	cmd.exe
PID 4684 wrote to memory of 4912	4684	EXCEL.EXE	cmd.exe
PID 4684 wrote to memory of 3940	4684	EXCEL.EXE	cmd.exe
PID 4684 wrote to memory of 3940	4684	EXCEL.EXE	cmd.exe
PID 3980 wrote to memory of 400	3980	cmd.exe	attrib.exe
PID 3980 wrote to memory of 400	3980	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

400 attrib.exe

pid	process
400	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\ececd0807e84c95b7d114cb07458cfdc6015f27d70657f98a099fdd2c2e1bfd4.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4684

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:3980

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:400

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:4912

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:3940

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/400-142-0x0000000000000000-mapping.dmp

Download
memory/3940-141-0x0000000000000000-mapping.dmp

Download
memory/3980-139-0x0000000000000000-mapping.dmp

Download
memory/4684-135-0x00007FFBB44B0000-0x00007FFBB44C0000-memory.dmp

Filesize
64KB

Download
memory/4684-136-0x00007FFBB44B0000-0x00007FFBB44C0000-memory.dmp

Filesize
64KB

Download
memory/4684-137-0x00007FFBB2450000-0x00007FFBB2460000-memory.dmp

Filesize
64KB

Download
memory/4684-138-0x00007FFBB2450000-0x00007FFBB2460000-memory.dmp

Filesize
64KB

Download
memory/4684-132-0x00007FFBB44B0000-0x00007FFBB44C0000-memory.dmp

Filesize
64KB

Download
memory/4684-134-0x00007FFBB44B0000-0x00007FFBB44C0000-memory.dmp

Filesize
64KB

Download
memory/4684-133-0x00007FFBB44B0000-0x00007FFBB44C0000-memory.dmp

Filesize
64KB

Download
memory/4684-143-0x000001E5BFCB8000-0x000001E5BFCBA000-memory.dmp

Filesize
8KB

Download
memory/4684-144-0x000001E5BFCB8000-0x000001E5BFCBA000-memory.dmp

Filesize
8KB

Download
memory/4912-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads