786430e6b6d3a28be7df05365235498d6f488b4b9b878b9f8988c1d4b2e45bbc

General

Target

786430e6b6d3a28be7df05365235498d6f488b4b9b878b9f8988c1d4b2e45bbc.xls
Size

110KB
MD5

0d76fd80a63d2748db64c984ef36ccf2
SHA1

10ee5fdfe66e415552445fac33b5aade60f8efb9
SHA256

786430e6b6d3a28be7df05365235498d6f488b4b9b878b9f8988c1d4b2e45bbc
SHA512

fbcb0573b15ada596f675f12dc2ad57b6fae3ef4f9b7cdc549de4c0e5ff19731d33083a78b4f68f87e901ed43928ae0f4350680c13e6d843a2e488e26067e96d
SSDEEP

1536:fSSSWSTC60/dZBY4nI0jDSYAheX/c7Z95+63vbWVbrzowd7ITkiD2lpkP+9cJtXu:mgkWVbrzh7ITkDwP+2JtXw75kqUA

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	1504	4536	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3880	4536	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2920	4536	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\59F65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4536 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\59F65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4536	EXCEL.EXE
4536	EXCEL.EXE
4536	EXCEL.EXE
4536	EXCEL.EXE
4536	EXCEL.EXE
4536	EXCEL.EXE
4536	EXCEL.EXE
4536	EXCEL.EXE
4536	EXCEL.EXE
4536	EXCEL.EXE
4536	EXCEL.EXE
4536	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4536 wrote to memory of 1504	4536	EXCEL.EXE	cmd.exe
PID 4536 wrote to memory of 1504	4536	EXCEL.EXE	cmd.exe
PID 4536 wrote to memory of 3880	4536	EXCEL.EXE	cmd.exe
PID 4536 wrote to memory of 3880	4536	EXCEL.EXE	cmd.exe
PID 4536 wrote to memory of 2920	4536	EXCEL.EXE	cmd.exe
PID 4536 wrote to memory of 2920	4536	EXCEL.EXE	cmd.exe
PID 1504 wrote to memory of 4600	1504	cmd.exe	attrib.exe
PID 1504 wrote to memory of 4600	1504	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4600 attrib.exe

pid	process
4600	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\786430e6b6d3a28be7df05365235498d6f488b4b9b878b9f8988c1d4b2e45bbc.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:4536

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:1504

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4600

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:3880

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:2920

C:\Windows\system32\werfault.exe
werfault.exe /h /shared Global\38633cefb0854c4aa90cc8619c792660 /t 4544 /p 4536
1⤵
PID:1884

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

memory/1504-139-0x0000000000000000-mapping.dmp

Download
memory/2920-141-0x0000000000000000-mapping.dmp

Download
memory/3880-140-0x0000000000000000-mapping.dmp

Download
memory/4536-135-0x00007FFEACFD0000-0x00007FFEACFE0000-memory.dmp

Filesize
64KB

Download
memory/4536-136-0x00007FFEACFD0000-0x00007FFEACFE0000-memory.dmp

Filesize
64KB

Download
memory/4536-137-0x00007FFEAA8E0000-0x00007FFEAA8F0000-memory.dmp

Filesize
64KB

Download
memory/4536-138-0x00007FFEAA8E0000-0x00007FFEAA8F0000-memory.dmp

Filesize
64KB

Download
memory/4536-132-0x00007FFEACFD0000-0x00007FFEACFE0000-memory.dmp

Filesize
64KB

Download
memory/4536-134-0x00007FFEACFD0000-0x00007FFEACFE0000-memory.dmp

Filesize
64KB

Download
memory/4536-133-0x00007FFEACFD0000-0x00007FFEACFE0000-memory.dmp

Filesize
64KB

Download
memory/4536-143-0x0000020A7DDBF000-0x0000020A7DDC1000-memory.dmp

Filesize
8KB

Download
memory/4536-144-0x0000020A7DDD7000-0x0000020A7DDD9000-memory.dmp

Filesize
8KB

Download
memory/4536-145-0x0000020A7DDBF000-0x0000020A7DDC1000-memory.dmp

Filesize
8KB

Download
memory/4536-146-0x0000020A7DDD7000-0x0000020A7DDD9000-memory.dmp

Filesize
8KB

Download
memory/4600-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads