ce868c3cd85acb99df28599fec809e3af99292f996755dbad8038118201bedd0

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 14:41

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Report Analysis Logs

General

Target

CE868C3CD85ACB99DF28599FEC809E3AF99292F996755DBAD8038118201BEDD0.xls
Size

217KB
MD5

e98525ed6bbd581d1af240f519c9d69e
SHA1

590bf50a76eb3e327b37dd80f875461707eb0a61
SHA256

ce868c3cd85acb99df28599fec809e3af99292f996755dbad8038118201bedd0
SHA512

fca5f1f578512ce409548a6b741586452da9ac1deb424c07a050d99b3d2f34d348ee7c1d6e6335a057589498d67503e231350982da44c9e315ca22f7a8eead2a
SSDEEP

6144:OKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgzyY+TAQXTHGUMEyP5p6f5jQmg:WbGUMVWlbg

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://atlantia.sca.org/php_fragments/D8Nwm2F80BL4s/

xlm40.dropper

https://amorecuidados.com.br/wp-admin/t3D/

xlm40.dropper

http://aibwireless.com/cgi-bin/zR2mG25Ssk8dH/

xlm40.dropper

http://thuybaohuy.com/wp-content/u3MJwXSP9tmiaTCyZD/

Signatures

Process spawned unexpected child process 4 IoCs

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

Processes:

regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.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	4144	1696	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	424	1696	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3680	1696	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2308	1696	regsvr32.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

1696 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE
1696	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1696 wrote to memory of 4144	1696	EXCEL.EXE	regsvr32.exe
PID 1696 wrote to memory of 4144	1696	EXCEL.EXE	regsvr32.exe
PID 1696 wrote to memory of 424	1696	EXCEL.EXE	regsvr32.exe
PID 1696 wrote to memory of 424	1696	EXCEL.EXE	regsvr32.exe
PID 1696 wrote to memory of 3680	1696	EXCEL.EXE	regsvr32.exe
PID 1696 wrote to memory of 3680	1696	EXCEL.EXE	regsvr32.exe
PID 1696 wrote to memory of 2308	1696	EXCEL.EXE	regsvr32.exe
PID 1696 wrote to memory of 2308	1696	EXCEL.EXE	regsvr32.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\CE868C3CD85ACB99DF28599FEC809E3AF99292F996755DBAD8038118201BEDD0.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1696

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
2⤵
- Process spawned unexpected child process
PID:4144

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
2⤵
- Process spawned unexpected child process
PID:424

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
2⤵
- Process spawned unexpected child process
PID:3680

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
2⤵
- Process spawned unexpected child process
PID:2308

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/424-140-0x0000000000000000-mapping.dmp

Download
memory/1696-132-0x00007FFACE7B0000-0x00007FFACE7C0000-memory.dmp

Filesize
64KB

Download
memory/1696-133-0x00007FFACE7B0000-0x00007FFACE7C0000-memory.dmp

Filesize
64KB

Download
memory/1696-134-0x00007FFACE7B0000-0x00007FFACE7C0000-memory.dmp

Filesize
64KB

Download
memory/1696-135-0x00007FFACE7B0000-0x00007FFACE7C0000-memory.dmp

Filesize
64KB

Download
memory/1696-136-0x00007FFACE7B0000-0x00007FFACE7C0000-memory.dmp

Filesize
64KB

Download
memory/1696-137-0x00007FFACC470000-0x00007FFACC480000-memory.dmp

Filesize
64KB

Download
memory/1696-138-0x00007FFACC470000-0x00007FFACC480000-memory.dmp

Filesize
64KB

Download
memory/2308-142-0x0000000000000000-mapping.dmp

Download
memory/3680-141-0x0000000000000000-mapping.dmp

Download
memory/4144-139-0x0000000000000000-mapping.dmp

Download