9bd4a61f84988a0588868e71c1c8ae32be7ec2922b700b85d1afbead957c4631

General

Target

9bd4a61f84988a0588868e71c1c8ae32be7ec2922b700b85d1afbead957c4631.xls
Size

100KB
MD5

97bdee44ba0a2e03552bb1b2bd729f80
SHA1

156796ee51c098e896af360cbb557fd3fe33b1c2
SHA256

9bd4a61f84988a0588868e71c1c8ae32be7ec2922b700b85d1afbead957c4631
SHA512

caf2785e5e1b472bcf9e2c0e084b7b0cdbb75b11d3907a2369047ae744f067076bc84edb4b4be1379dc596e18caf1b0d31352d71cd1ea1e8ce5a409f2eeb5daa
SSDEEP

3072:pe1gxv7yZmspH7+cclKisQ6NqTBun5oIFIhzvY/2jcc0lbxOKrmaxU4/:g1gxv7yZmspH7+cclKisQ6NqTBun5oIH

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	4500	4252	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3604	4252	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3732	4252	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\96075E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4252 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\96075E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE
4252	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4252 wrote to memory of 4500	4252	EXCEL.EXE	cmd.exe
PID 4252 wrote to memory of 4500	4252	EXCEL.EXE	cmd.exe
PID 4252 wrote to memory of 3604	4252	EXCEL.EXE	cmd.exe
PID 4252 wrote to memory of 3604	4252	EXCEL.EXE	cmd.exe
PID 4252 wrote to memory of 3732	4252	EXCEL.EXE	cmd.exe
PID 4252 wrote to memory of 3732	4252	EXCEL.EXE	cmd.exe
PID 4500 wrote to memory of 4860	4500	cmd.exe	attrib.exe
PID 4500 wrote to memory of 4860	4500	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4860 attrib.exe

pid	process
4860	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\9bd4a61f84988a0588868e71c1c8ae32be7ec2922b700b85d1afbead957c4631.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:4252

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:4500

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4860

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:3604

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:3732

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/3604-140-0x0000000000000000-mapping.dmp

Download
memory/3732-141-0x0000000000000000-mapping.dmp

Download
memory/4252-135-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4252-132-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4252-136-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4252-137-0x00007FF8D50A0000-0x00007FF8D50B0000-memory.dmp

Filesize
64KB

Download
memory/4252-138-0x00007FF8D50A0000-0x00007FF8D50B0000-memory.dmp

Filesize
64KB

Download
memory/4252-134-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4252-133-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4252-144-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4252-145-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4252-146-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4252-147-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/4500-139-0x0000000000000000-mapping.dmp

Download
memory/4860-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads