8f0f911c7fe67db5248c4220e99df3f6870d47c0827cc663f73d161168c1cd8f

General

Target

8f0f911c7fe67db5248c4220e99df3f6870d47c0827cc663f73d161168c1cd8f.xls
Size

53KB
MD5

dd4618c9dd0dbe5b16c38a126a8b209e
SHA1

bb6ac922d8b2996cea91432b378806d3faff953b
SHA256

8f0f911c7fe67db5248c4220e99df3f6870d47c0827cc663f73d161168c1cd8f
SHA512

ab5be9bd4683e26065da75e78f17710155736edb82d08a34408e22a8d485935bb888b08ea205436b5947f4730a99a3a71e43c92b7e0c553d65b85d0962063eac
SSDEEP

1536:LPKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+bSgNeEYL8ECyn:rKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMN

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://newkano.com/wp-admin/66rIsrVwoPKUsjcAs/

xlm40.dropper

http://ocalogullari.com/inc/Wcm82enrs8/

xlm40.dropper

https://myphamcuatui.com/assets/OPVeVSpO/

xlm40.dropper

http://sieuthiphutungxenang.com/old_source/9boJQZpTSdQE/

Signatures

Process spawned unexpected child process 4 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4804	4564	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1108	4564	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3656	4564	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1792	4564	regsvr32.exe	82

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

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

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

pid	Process
4564	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4564	EXCEL.EXE
4564	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4564	EXCEL.EXE
4564	EXCEL.EXE
4564	EXCEL.EXE
4564	EXCEL.EXE
4564	EXCEL.EXE
4564	EXCEL.EXE
4564	EXCEL.EXE
4564	EXCEL.EXE
4564	EXCEL.EXE
4564	EXCEL.EXE
4564	EXCEL.EXE
4564	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 4804	4564	EXCEL.EXE	92
PID 4564 wrote to memory of 4804	4564	EXCEL.EXE	92
PID 4564 wrote to memory of 1108	4564	EXCEL.EXE	93
PID 4564 wrote to memory of 1108	4564	EXCEL.EXE	93
PID 4564 wrote to memory of 3656	4564	EXCEL.EXE	95
PID 4564 wrote to memory of 3656	4564	EXCEL.EXE	95
PID 4564 wrote to memory of 1792	4564	EXCEL.EXE	98
PID 4564 wrote to memory of 1792	4564	EXCEL.EXE	98

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\8f0f911c7fe67db5248c4220e99df3f6870d47c0827cc663f73d161168c1cd8f.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:4564
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4804
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1108
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3656
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4564-0-0x00007FFA08D30000-0x00007FFA08D40000-memory.dmp

Filesize
64KB

Download
memory/4564-2-0x00007FFA08D30000-0x00007FFA08D40000-memory.dmp

Filesize
64KB

Download
memory/4564-4-0x00007FFA08D30000-0x00007FFA08D40000-memory.dmp

Filesize
64KB

Download
memory/4564-3-0x00007FFA08D30000-0x00007FFA08D40000-memory.dmp

Filesize
64KB

Download
memory/4564-1-0x00007FFA48D4D000-0x00007FFA48D4E000-memory.dmp

Filesize
4KB

Download
memory/4564-6-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-7-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-8-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-5-0x00007FFA08D30000-0x00007FFA08D40000-memory.dmp

Filesize
64KB

Download
memory/4564-12-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-13-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-14-0x00007FFA064E0000-0x00007FFA064F0000-memory.dmp

Filesize
64KB

Download
memory/4564-11-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-10-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-15-0x00007FFA064E0000-0x00007FFA064F0000-memory.dmp

Filesize
64KB

Download
memory/4564-17-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-20-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-19-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-18-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-16-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-9-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-36-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-37-0x00007FFA48D4D000-0x00007FFA48D4E000-memory.dmp

Filesize
4KB

Download
memory/4564-38-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-42-0x00007FFA48CB0000-0x00007FFA48EA5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads