7e155c707d4c6077c636f47fcd07bf94c7b0ce299231ccb1c41bb9423757ddd7

General

Target

7e155c707d4c6077c636f47fcd07bf94c7b0ce299231ccb1c41bb9423757ddd7.xls
Size

170KB
MD5

66731614fb7090ae1ef5ea1202ce1fdc
SHA1

b73e1da67ca2fb73b21521df3a77c1c0ca6dbbcc
SHA256

7e155c707d4c6077c636f47fcd07bf94c7b0ce299231ccb1c41bb9423757ddd7
SHA512

e898655d3006d49fb0ef79f049c4e160f68ac4f016d9f644411fbc9a9274cd27f10d9b46457c0acf9c07f9cbdffaa89bc0edee2a5d13fdebc3bd4173424eb134
SSDEEP

3072:N8fqWPFrgFMtKqQmxWVbrzQ7ITkPpFGsv:y7r95

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	3580	4584	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1376	4584	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	748	4584	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

4584 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE
4584	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4584 wrote to memory of 392	4584	EXCEL.EXE	splwow64.exe
PID 4584 wrote to memory of 392	4584	EXCEL.EXE	splwow64.exe
PID 4584 wrote to memory of 3580	4584	EXCEL.EXE	cmd.exe
PID 4584 wrote to memory of 3580	4584	EXCEL.EXE	cmd.exe
PID 4584 wrote to memory of 1376	4584	EXCEL.EXE	cmd.exe
PID 4584 wrote to memory of 1376	4584	EXCEL.EXE	cmd.exe
PID 4584 wrote to memory of 748	4584	EXCEL.EXE	cmd.exe
PID 4584 wrote to memory of 748	4584	EXCEL.EXE	cmd.exe
PID 3580 wrote to memory of 3096	3580	cmd.exe	attrib.exe
PID 3580 wrote to memory of 3096	3580	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3096 attrib.exe

pid	process
3096	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\7e155c707d4c6077c636f47fcd07bf94c7b0ce299231ccb1c41bb9423757ddd7.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4584

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:392

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:3580

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:3096

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:1376

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:748

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:4136

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

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Downloads

memory/392-139-0x0000000000000000-mapping.dmp

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memory/748-142-0x0000000000000000-mapping.dmp

Download
memory/1376-141-0x0000000000000000-mapping.dmp

Download
memory/3096-143-0x0000000000000000-mapping.dmp

Download
memory/3580-140-0x0000000000000000-mapping.dmp

Download
memory/4584-136-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/4584-138-0x00007FFA94040000-0x00007FFA94050000-memory.dmp

Filesize
64KB

Download
memory/4584-137-0x00007FFA94040000-0x00007FFA94050000-memory.dmp

Filesize
64KB

Download
memory/4584-132-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/4584-135-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/4584-134-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/4584-133-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/4584-145-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/4584-146-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/4584-147-0x00007FFA96230000-0x00007FFA96240000-memory.dmp

Filesize
64KB

Download
memory/4584-148-0x00007FFA96230000-0x00007FFA96240000-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