16523cbebb016334a8f0b023553dce2efb1df166a485eec09c9f837e4e3332cb

General

Target

a9e62e71d0287e567553dac6a64865cb.xls
Size

1.3MB
MD5

a9e62e71d0287e567553dac6a64865cb
SHA1

34a7e4f3bdfcbb7581c2659d7e94ddefc86b4485
SHA256

16523cbebb016334a8f0b023553dce2efb1df166a485eec09c9f837e4e3332cb
SHA512

947333705422acf48d43866c3b5df1e48aa8ff0f53e4b0604a26f459c7e7ad85f10f03d781ae2d2ccaa6cbc80137f65091f3a28e6a7fd8de600ce6ad99b11b8d
SSDEEP

24576:i5of6rMMouUqHwU/FD6cjmnwKgRGsRFRj1v/4CbUdWchqeg0cNgORgu:ZMbUqHt/QvwKgRGCrjR/4CQMcYPHgu

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	1796	1608	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2328	1608	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1696	1608	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\29965E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1608 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1608 EXCEL.EXE
1608 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\29965E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE
1608	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1608 wrote to memory of 1796	1608	EXCEL.EXE	cmd.exe
PID 1608 wrote to memory of 1796	1608	EXCEL.EXE	cmd.exe
PID 1608 wrote to memory of 2328	1608	EXCEL.EXE	cmd.exe
PID 1608 wrote to memory of 2328	1608	EXCEL.EXE	cmd.exe
PID 1608 wrote to memory of 1696	1608	EXCEL.EXE	cmd.exe
PID 1608 wrote to memory of 1696	1608	EXCEL.EXE	cmd.exe
PID 1796 wrote to memory of 5096	1796	cmd.exe	attrib.exe
PID 1796 wrote to memory of 5096	1796	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

5096 attrib.exe

pid	process
5096	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\a9e62e71d0287e567553dac6a64865cb.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1608

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:1796

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:5096

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:2328

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:1696

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

C:\Users\Admin\AppData\Local\Temp\a9e62e71d0287e567553dac6a64865cb.xls
Filesize
1.3MB

MD5
cdb39eb080e73715a5807f7a8fa578a0

SHA1
57fda0428734d23aaed9bee8b04e09eedfbc3bd5

SHA256
37dba274d09af9dc6350e090edc74c82fd2a961e307a0d7f12214dbc54fea1ff

SHA512
5e0cabc355676495169c76445c5ab453b0e1f05f0695774f40c70c3ad43cf519b4b0cb6b03f541b19523df865422bf9fd43f9472df02498fe59b6c0b29087cb1

Download Submit
memory/1608-133-0x00007FFD61C70000-0x00007FFD61C80000-memory.dmp

Filesize
64KB

Download
memory/1608-134-0x00007FFD61C70000-0x00007FFD61C80000-memory.dmp

Filesize
64KB

Download
memory/1608-135-0x00007FFD61C70000-0x00007FFD61C80000-memory.dmp

Filesize
64KB

Download
memory/1608-136-0x00007FFD61C70000-0x00007FFD61C80000-memory.dmp

Filesize
64KB

Download
memory/1608-137-0x00007FFD61C70000-0x00007FFD61C80000-memory.dmp

Filesize
64KB

Download
memory/1608-138-0x00007FFD5F310000-0x00007FFD5F320000-memory.dmp

Filesize
64KB

Download
memory/1608-139-0x00007FFD5F310000-0x00007FFD5F320000-memory.dmp

Filesize
64KB

Download
memory/1608-227-0x00007FFD61C70000-0x00007FFD61C80000-memory.dmp

Filesize
64KB

Download
memory/1608-228-0x00007FFD61C70000-0x00007FFD61C80000-memory.dmp

Filesize
64KB

Download
memory/1608-229-0x00007FFD61C70000-0x00007FFD61C80000-memory.dmp

Filesize
64KB

Download
memory/1608-230-0x00007FFD61C70000-0x00007FFD61C80000-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