c612d194d69e06ea0ee13e396d234a0b7d92a987beb92dd92d0c70fc9d5ea752

Analysis

max time kernel
182s
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 14:40

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General

Target

C612D194D69E06EA0EE13E396D234A0B7D92A987BEB92DD92D0C70FC9D5EA752.xls
Size

91KB
MD5

0a5b36315b65dba36d6697cbf5b0d579
SHA1

71e6ab682026f3e114a3ce223f3173953d7a0ea6
SHA256

c612d194d69e06ea0ee13e396d234a0b7d92a987beb92dd92d0c70fc9d5ea752
SHA512

18c8ba365ee83997f442650b22e52ca3c0f2ab4dc73fab6152d1eb62c10b2b3f71bb3f595a763edf0bba59c5595a9f258f863c198fea26f1ca3c7c4d7591606f
SSDEEP

1536:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgHbCXuZH4gb4CEn9J4ZvX5:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgF

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	2508	4432	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3732	4432	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2088	4432	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2164	4432	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\~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 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

4432 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE
4432	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4432 wrote to memory of 2508	4432	EXCEL.EXE	regsvr32.exe
PID 4432 wrote to memory of 2508	4432	EXCEL.EXE	regsvr32.exe
PID 4432 wrote to memory of 3732	4432	EXCEL.EXE	regsvr32.exe
PID 4432 wrote to memory of 3732	4432	EXCEL.EXE	regsvr32.exe
PID 4432 wrote to memory of 2088	4432	EXCEL.EXE	regsvr32.exe
PID 4432 wrote to memory of 2088	4432	EXCEL.EXE	regsvr32.exe
PID 4432 wrote to memory of 2164	4432	EXCEL.EXE	regsvr32.exe
PID 4432 wrote to memory of 2164	4432	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\C612D194D69E06EA0EE13E396D234A0B7D92A987BEB92DD92D0C70FC9D5EA752.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4432

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:2508

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:3732

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:2088

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:2164

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/2088-141-0x0000000000000000-mapping.dmp

Download
memory/2164-142-0x0000000000000000-mapping.dmp

Download
memory/2508-139-0x0000000000000000-mapping.dmp

Download
memory/3732-140-0x0000000000000000-mapping.dmp

Download
memory/4432-132-0x00007FF927570000-0x00007FF927580000-memory.dmp

Filesize
64KB

Download
memory/4432-133-0x00007FF927570000-0x00007FF927580000-memory.dmp

Filesize
64KB

Download
memory/4432-134-0x00007FF927570000-0x00007FF927580000-memory.dmp

Filesize
64KB

Download
memory/4432-135-0x00007FF927570000-0x00007FF927580000-memory.dmp

Filesize
64KB

Download
memory/4432-136-0x00007FF927570000-0x00007FF927580000-memory.dmp

Filesize
64KB

Download
memory/4432-137-0x00007FF924D10000-0x00007FF924D20000-memory.dmp

Filesize
64KB

Download
memory/4432-138-0x00007FF924D10000-0x00007FF924D20000-memory.dmp

Filesize
64KB

Download