c60671669c58d29c067cfba701d5b6e3546245d45c64336ee76de89811ba0333

Analysis

max time kernel
98s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
09-03-2023 20:02

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General

Target

FM_5191271_E4_9600_2023_02.xls
Size

59KB
MD5

421bc13db81b43990a4d87196dc6e24d
SHA1

804d731350b62d526882a1a428522060ae12f2dc
SHA256

c60671669c58d29c067cfba701d5b6e3546245d45c64336ee76de89811ba0333
SHA512

8dd89c3303cd19f845f9947b1077ea4d6fcffc58328488b9c9dd1ed31bf863f2ee9bdf992c4eb8f5bd7e99803d375c0969e362c37c29956ef9ff19972c58be09
SSDEEP

1536:iDlYkEIbSkKBEqEXPgsRZmbaoFhZhR0cixIHm0OMRBM2whuBPYYgJ8BG5/d:iDlYkEIuPm3fNRZmbaoFhZhR0cixIHmt

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.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	4880	2016	rundll32.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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2016 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2016 EXCEL.EXE
2016 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2016 wrote to memory of 4880	2016	EXCEL.EXE	rundll32.exe
PID 2016 wrote to memory of 4880	2016	EXCEL.EXE	rundll32.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\FM_5191271_E4_9600_2023_02.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\Documents\385018910.cvs,#0 InetCpl.cpl,ClearMyTracksByProcess 255
2⤵
- Process spawned unexpected child process
PID:4880

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Documents\385018910.cvs

Filesize
4KB

MD5
d7349204554f1e8ffe7ad6219e863972

SHA1
561f778cec7aec14b203949ec84243cb47494693

SHA256
e4d1318baabd1316a645ed86cd0cfb4320a1ba5b60cffe91381ed6f1f6ba9741

SHA512
70bf05d004600d968eca1a7c12dc111e53cdcede23cff52dbdccb98eb54dc68dc80be7b8d9b68295ee63f3274f7ac98b73be1b383d44ecf0c62e4ace339a51d0

Download Submit
memory/2016-139-0x00007FFF4B530000-0x00007FFF4B540000-memory.dmp

Filesize
64KB

Download
memory/2016-134-0x00007FFF4DD30000-0x00007FFF4DD40000-memory.dmp

Filesize
64KB

Download
memory/2016-136-0x00007FFF4DD30000-0x00007FFF4DD40000-memory.dmp

Filesize
64KB

Download
memory/2016-137-0x00007FFF4DD30000-0x00007FFF4DD40000-memory.dmp

Filesize
64KB

Download
memory/2016-138-0x00007FFF4B530000-0x00007FFF4B540000-memory.dmp

Filesize
64KB

Download
memory/2016-133-0x00007FFF4DD30000-0x00007FFF4DD40000-memory.dmp

Filesize
64KB

Download
memory/2016-141-0x0000019C99CC0000-0x0000019C99E69000-memory.dmp

Filesize
1.7MB

Download
memory/2016-135-0x00007FFF4DD30000-0x00007FFF4DD40000-memory.dmp

Filesize
64KB

Download
memory/2016-188-0x00007FFF4DD30000-0x00007FFF4DD40000-memory.dmp

Filesize
64KB

Download
memory/2016-189-0x00007FFF4DD30000-0x00007FFF4DD40000-memory.dmp

Filesize
64KB

Download
memory/2016-190-0x00007FFF4DD30000-0x00007FFF4DD40000-memory.dmp

Filesize
64KB

Download
memory/2016-191-0x00007FFF4DD30000-0x00007FFF4DD40000-memory.dmp

Filesize
64KB

Download
memory/2016-192-0x0000019C99CC0000-0x0000019C99E69000-memory.dmp

Filesize
1.7MB

Download