d836c0508ab82a2b60d6dc3ee0afe53bf9cc31d8f14365a2b183d54e00c28c49

Analysis

max time kernel
158s
max time network
188s
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

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

D836C0508AB82A2B60D6DC3EE0AFE53BF9CC31D8F14365A2B183D54E00C28C49.xls
Size

91KB
MD5

74c6ed19c6d7b8b11ca432da8b97250e
SHA1

dc08c8748cc832feed5f4f266748cd69fc47e974
SHA256

d836c0508ab82a2b60d6dc3ee0afe53bf9cc31d8f14365a2b183d54e00c28c49
SHA512

1d7ee0243b0d89f231e5d54a00cc4b92f11b22c7c65c3be8b4481b5c1e571d49f61ed702b091adf8aa190dd22f1f72328ff855238e58e491736e5379dc0c136d
SSDEEP

1536:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgHbCXuZH4gb4CEn9J4ZPX5:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgl

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 3 IoCs

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

Processes:

regsvr32.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	4856	2960	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4444	2960	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3160	2960	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

2960 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE
2960	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2960 wrote to memory of 4856	2960	EXCEL.EXE	regsvr32.exe
PID 2960 wrote to memory of 4856	2960	EXCEL.EXE	regsvr32.exe
PID 2960 wrote to memory of 4444	2960	EXCEL.EXE	regsvr32.exe
PID 2960 wrote to memory of 4444	2960	EXCEL.EXE	regsvr32.exe
PID 2960 wrote to memory of 3160	2960	EXCEL.EXE	regsvr32.exe
PID 2960 wrote to memory of 3160	2960	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\D836C0508AB82A2B60D6DC3EE0AFE53BF9CC31D8F14365A2B183D54E00C28C49.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2960

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:4856

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:4444

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:3160

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/2960-132-0x00007FF88B410000-0x00007FF88B420000-memory.dmp

Filesize
64KB

Download
memory/2960-133-0x00007FF88B410000-0x00007FF88B420000-memory.dmp

Filesize
64KB

Download
memory/2960-134-0x00007FF88B410000-0x00007FF88B420000-memory.dmp

Filesize
64KB

Download
memory/2960-135-0x00007FF88B410000-0x00007FF88B420000-memory.dmp

Filesize
64KB

Download
memory/2960-136-0x00007FF88B410000-0x00007FF88B420000-memory.dmp

Filesize
64KB

Download
memory/2960-137-0x00007FF889000000-0x00007FF889010000-memory.dmp

Filesize
64KB

Download
memory/2960-138-0x00007FF889000000-0x00007FF889010000-memory.dmp

Filesize
64KB

Download
memory/3160-141-0x0000000000000000-mapping.dmp

Download
memory/4444-140-0x0000000000000000-mapping.dmp

Download
memory/4856-139-0x0000000000000000-mapping.dmp

Download