242292b491b22ad3979f46cc8c2b02f2515ed75cbee2a28be5552982ec9f24ff

General

Target

242292b491b22ad3979f46cc8c2b02f2515ed75cbee2a28be5552982ec9f24ff.xls
Size

99KB
MD5

83d5200113e2bf6959ce1223d2dfbf45
SHA1

1d0086925d2db09e95fcc30b962324fad472343e
SHA256

242292b491b22ad3979f46cc8c2b02f2515ed75cbee2a28be5552982ec9f24ff
SHA512

a7149f08ef1d32966a37243f2ee10a2236e140972cef536886a8c8b86eb4588a0ee7b41c924fff5fcbc2edbe552165410c96786595f53224ca9452b4d36a8c55
SSDEEP

3072:xhl6Nc7yRzs1H75wkZUgsQ6NqTBun5oBtxuB22jcc0lbxOrpjhJtXwA:jl6Nc7yRzs1H75wkZUgsQ6NqTBun5oM

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	4652	3540	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4400	3540	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4584	3540	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\7A575E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3540 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\7A575E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE
3540	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 3540 wrote to memory of 4652	3540	EXCEL.EXE	cmd.exe
PID 3540 wrote to memory of 4652	3540	EXCEL.EXE	cmd.exe
PID 3540 wrote to memory of 4400	3540	EXCEL.EXE	cmd.exe
PID 3540 wrote to memory of 4400	3540	EXCEL.EXE	cmd.exe
PID 3540 wrote to memory of 4584	3540	EXCEL.EXE	cmd.exe
PID 3540 wrote to memory of 4584	3540	EXCEL.EXE	cmd.exe
PID 4652 wrote to memory of 1212	4652	cmd.exe	attrib.exe
PID 4652 wrote to memory of 1212	4652	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1212 attrib.exe

pid	process
1212	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\242292b491b22ad3979f46cc8c2b02f2515ed75cbee2a28be5552982ec9f24ff.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:3540

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:4652

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1212

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:4400

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:4584

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/1212-142-0x0000000000000000-mapping.dmp

Download
memory/3540-144-0x000002BA5DEC2000-0x000002BA5DEC4000-memory.dmp

Filesize
8KB

Download
memory/3540-143-0x000002BA5DCEA000-0x000002BA5DCEC000-memory.dmp

Filesize
8KB

Download
memory/3540-135-0x00007FF963870000-0x00007FF963880000-memory.dmp

Filesize
64KB

Download
memory/3540-136-0x00007FF963870000-0x00007FF963880000-memory.dmp

Filesize
64KB

Download
memory/3540-147-0x00007FF963870000-0x00007FF963880000-memory.dmp

Filesize
64KB

Download
memory/3540-138-0x00007FF9617E0000-0x00007FF9617F0000-memory.dmp

Filesize
64KB

Download
memory/3540-133-0x00007FF963870000-0x00007FF963880000-memory.dmp

Filesize
64KB

Download
memory/3540-149-0x00007FF963870000-0x00007FF963880000-memory.dmp

Filesize
64KB

Download
memory/3540-137-0x00007FF9617E0000-0x00007FF9617F0000-memory.dmp

Filesize
64KB

Download
memory/3540-134-0x00007FF963870000-0x00007FF963880000-memory.dmp

Filesize
64KB

Download
memory/3540-148-0x00007FF963870000-0x00007FF963880000-memory.dmp

Filesize
64KB

Download
memory/3540-132-0x00007FF963870000-0x00007FF963880000-memory.dmp

Filesize
64KB

Download
memory/3540-146-0x00007FF963870000-0x00007FF963880000-memory.dmp

Filesize
64KB

Download
memory/4400-140-0x0000000000000000-mapping.dmp

Download
memory/4584-141-0x0000000000000000-mapping.dmp

Download
memory/4652-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads