444df65f2022d84e09bfc5eaa6a2325c9f9d27ae7b55871dc3b69e9b12a38263

General

Target

444df65f2022d84e09bfc5eaa6a2325c9f9d27ae7b55871dc3b69e9b12a38263.xls
Size

53KB
MD5

2fa46bfb49af6e66c23e692d26345bee
SHA1

460c3de305d497281ed56ef52fbe12cd37b5512a
SHA256

444df65f2022d84e09bfc5eaa6a2325c9f9d27ae7b55871dc3b69e9b12a38263
SHA512

4dcef4c28c7205f23842f64026174991c016ee26e8505db88439761c7e40c4b9f8c03355362f5a941536e72a2f0a0d24b63a0a2a8acb20c1f05a53796428acc9
SSDEEP

1536:LPKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+bSgNeEYL8ECyv:rKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMl

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	4464	4764	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3260	4764	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	544	4764	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1700	4764	regsvr32.exe	81

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 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

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
4764	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4764	EXCEL.EXE
4764	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4764	EXCEL.EXE
4764	EXCEL.EXE
4764	EXCEL.EXE
4764	EXCEL.EXE
4764	EXCEL.EXE
4764	EXCEL.EXE
4764	EXCEL.EXE
4764	EXCEL.EXE
4764	EXCEL.EXE
4764	EXCEL.EXE
4764	EXCEL.EXE
4764	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 4464	4764	EXCEL.EXE	89
PID 4764 wrote to memory of 4464	4764	EXCEL.EXE	89
PID 4764 wrote to memory of 3260	4764	EXCEL.EXE	90
PID 4764 wrote to memory of 3260	4764	EXCEL.EXE	90
PID 4764 wrote to memory of 544	4764	EXCEL.EXE	94
PID 4764 wrote to memory of 544	4764	EXCEL.EXE	94
PID 4764 wrote to memory of 1700	4764	EXCEL.EXE	95
PID 4764 wrote to memory of 1700	4764	EXCEL.EXE	95

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\444df65f2022d84e09bfc5eaa6a2325c9f9d27ae7b55871dc3b69e9b12a38263.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:4764
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4464
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3260
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:544
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1700

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

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
1KB

MD5
699e7c70113a263ddb42dd2a743dcb52

SHA1
5c1879141c6158481efe785c1413b47e5181cab9

SHA256
e401f67aaa20465b1667d82d8235936f213264a027741a87c1b68e251eab4596

SHA512
416a9121166731b4fa1c03aa4321eb1fe56d2d739d62b381ee8b602731a2b4808d94675e16d16473c12c873e32fe01b099deb0b52a1b5799da9064a036d8039c

Download Submit
memory/4764-11-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-9-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-2-0x00007FFD9ADD0000-0x00007FFD9ADE0000-memory.dmp

Filesize
64KB

Download
memory/4764-5-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-7-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-8-0x00007FFD9ADD0000-0x00007FFD9ADE0000-memory.dmp

Filesize
64KB

Download
memory/4764-0-0x00007FFD9ADD0000-0x00007FFD9ADE0000-memory.dmp

Filesize
64KB

Download
memory/4764-6-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-10-0x00007FFD98C50000-0x00007FFD98C60000-memory.dmp

Filesize
64KB

Download
memory/4764-4-0x00007FFD9ADD0000-0x00007FFD9ADE0000-memory.dmp

Filesize
64KB

Download
memory/4764-3-0x00007FFD9ADD0000-0x00007FFD9ADE0000-memory.dmp

Filesize
64KB

Download
memory/4764-12-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-19-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-15-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-16-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-17-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-14-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-18-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-13-0x00007FFD98C50000-0x00007FFD98C60000-memory.dmp

Filesize
64KB

Download
memory/4764-35-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-36-0x00007FFDDADED000-0x00007FFDDADEE000-memory.dmp

Filesize
4KB

Download
memory/4764-37-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-38-0x00007FFDDAD50000-0x00007FFDDAF45000-memory.dmp

Filesize
2.0MB

Download
memory/4764-1-0x00007FFDDADED000-0x00007FFDDADEE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads