7333c321472d2afddd50d26a3bf558db84138ea89c59830f4353ec29327452a5

Analysis

max time kernel
168s
max time network
171s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 14:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7333C321472D2AFDDD50D26A3BF558DB84138EA89C59830F4353EC29327452A5.xls
Size

91KB
MD5

7cddd6fc76739f69a2ae841c5d3f648a
SHA1

dd2b4e84dbad29bb8652f174238048ac7ca63142
SHA256

7333c321472d2afddd50d26a3bf558db84138ea89c59830f4353ec29327452a5
SHA512

601ece448097e97407a7d0d71fbe04397dc5611dcfb0a0b284ed799737e0aba1d9b08a9b5794b412a4739a9699cf6abf0a0c1e6025e953c3f388ef3fe53b73ab
SSDEEP

1536:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgHbCXuZH4gb4CEn9J4ZHX5:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgd

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://datie-tw.com/img/O8G0RDZj7MYCuJyPoP/

xlm40.dropper

http://sbm.xinmoshiwang.com/upload/VaOfWEb3pW76UO/

xlm40.dropper

https://copunupo.ac.zm/cgi-bin/WFFcGx/

xlm40.dropper

http://ly.yjlianyi.top/wp-admin/4cChao/

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	4496	2136	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	216	2136	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4704	2136	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3576	2136	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2136 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE
2136	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2136 wrote to memory of 4496	2136	EXCEL.EXE	regsvr32.exe
PID 2136 wrote to memory of 4496	2136	EXCEL.EXE	regsvr32.exe
PID 2136 wrote to memory of 216	2136	EXCEL.EXE	regsvr32.exe
PID 2136 wrote to memory of 216	2136	EXCEL.EXE	regsvr32.exe
PID 2136 wrote to memory of 4704	2136	EXCEL.EXE	regsvr32.exe
PID 2136 wrote to memory of 4704	2136	EXCEL.EXE	regsvr32.exe
PID 2136 wrote to memory of 3576	2136	EXCEL.EXE	regsvr32.exe
PID 2136 wrote to memory of 3576	2136	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\7333C321472D2AFDDD50D26A3BF558DB84138EA89C59830F4353EC29327452A5.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2136

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:4496

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:216

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:4704

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:3576

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

Loading Replay Monitor...

Downloads

memory/216-140-0x0000000000000000-mapping.dmp

Download
memory/2136-132-0x00007FF7F2C90000-0x00007FF7F2CA0000-memory.dmp

Filesize
64KB

Download
memory/2136-133-0x00007FF7F2C90000-0x00007FF7F2CA0000-memory.dmp

Filesize
64KB

Download
memory/2136-134-0x00007FF7F2C90000-0x00007FF7F2CA0000-memory.dmp

Filesize
64KB

Download
memory/2136-135-0x00007FF7F2C90000-0x00007FF7F2CA0000-memory.dmp

Filesize
64KB

Download
memory/2136-136-0x00007FF7F2C90000-0x00007FF7F2CA0000-memory.dmp

Filesize
64KB

Download
memory/2136-137-0x00007FF7F0330000-0x00007FF7F0340000-memory.dmp

Filesize
64KB

Download
memory/2136-138-0x00007FF7F0330000-0x00007FF7F0340000-memory.dmp

Filesize
64KB

Download
memory/3576-142-0x0000000000000000-mapping.dmp

Download
memory/4496-139-0x0000000000000000-mapping.dmp

Download
memory/4704-141-0x0000000000000000-mapping.dmp

Download