4694fd27bdbf5b240daf20026ddd2d12a9ddaa3dd2b8b5a60d2fe48da16865f3

General

Target

4694fd27bdbf5b240daf20026ddd2d12a9ddaa3dd2b8b5a60d2fe48da16865f3.xls
Size

102KB
MD5

740ddd0b5dfd217121428c94d1e7960f
SHA1

5662dfeb414bacc6e47de591942a8a05f9ff20da
SHA256

4694fd27bdbf5b240daf20026ddd2d12a9ddaa3dd2b8b5a60d2fe48da16865f3
SHA512

8e2468bb5a1e78e20603cccd5eac3c960f13189e723310f52da6aa5cb2981459b03c5ca6e02f4f0b94fef618cc62acc02c0117451705739f76d81825d59c0f89
SSDEEP

1536:sFFFpvkkj5pWVbrzlv7ITkR62lGM88wcJtXwRvM2M/MHUd+:SWVbrzh7ITk9tjDJtXwS5k0d+

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	2176	3404	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3984	3404	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3768	3404	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\3F175E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3404 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\3F175E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE
3404	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 3404 wrote to memory of 2176	3404	EXCEL.EXE	cmd.exe
PID 3404 wrote to memory of 2176	3404	EXCEL.EXE	cmd.exe
PID 3404 wrote to memory of 3984	3404	EXCEL.EXE	cmd.exe
PID 3404 wrote to memory of 3984	3404	EXCEL.EXE	cmd.exe
PID 3404 wrote to memory of 3768	3404	EXCEL.EXE	cmd.exe
PID 3404 wrote to memory of 3768	3404	EXCEL.EXE	cmd.exe
PID 2176 wrote to memory of 5116	2176	cmd.exe	attrib.exe
PID 2176 wrote to memory of 5116	2176	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

5116 attrib.exe

pid	process
5116	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\4694fd27bdbf5b240daf20026ddd2d12a9ddaa3dd2b8b5a60d2fe48da16865f3.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:3404

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:2176

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:5116

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:3984

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:3768

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/2176-139-0x0000000000000000-mapping.dmp

Download
memory/3404-144-0x000001FDA9557000-0x000001FDA9559000-memory.dmp

Filesize
8KB

Download
memory/3404-143-0x000001FDA9557000-0x000001FDA9559000-memory.dmp

Filesize
8KB

Download
memory/3404-135-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-136-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-148-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-138-0x00007FF8D50A0000-0x00007FF8D50B0000-memory.dmp

Filesize
64KB

Download
memory/3404-133-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-134-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-137-0x00007FF8D50A0000-0x00007FF8D50B0000-memory.dmp

Filesize
64KB

Download
memory/3404-149-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-147-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-132-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3404-146-0x00007FF8D78D0000-0x00007FF8D78E0000-memory.dmp

Filesize
64KB

Download
memory/3768-141-0x0000000000000000-mapping.dmp

Download
memory/3984-140-0x0000000000000000-mapping.dmp

Download
memory/5116-142-0x0000000000000000-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