486011410d80fc17aaa070ed2bbb0367419b79fb77da01d503f84fad4dffe342

General

Target

486011410d80fc17aaa070ed2bbb0367419b79fb77da01d503f84fad4dffe342.xls
Size

46KB
MD5

8b65052cfc75035cea9fa038e3da2a54
SHA1

620871171c230d38bc48614992f4eb7366f41287
SHA256

486011410d80fc17aaa070ed2bbb0367419b79fb77da01d503f84fad4dffe342
SHA512

1e1e8ffb6fd4705da82eeff11f37216a11d2ee903f9174de8836fe0b1a7da7bb8d920cb18d1622d58909eee517d627172b26cc1a09837ce80b21140a31448f97
SSDEEP

768:pDMPKpb8rGYrMPe3q7Q0XV5xtezE8vpI8UM+VQTUs77quK7KtGu6w:pYKpb8rGYrMPe3q7Q0XV5xtezE8vG8UW

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://zktecovn.com/wp-admin/xxfnYY4zwOpFOgu3g1t/

xlm40.dropper

http://zacharywythe.com/pb_index_bak/SkEGB2c/

xlm40.dropper

http://zonainformatica.es/aspnet_client/pVcppgi00Dk/

Signatures

Process spawned unexpected child process 3 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	1640	4308	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3908	4308	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4800	4308	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 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
4308	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4308	EXCEL.EXE
4308	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4308	EXCEL.EXE
4308	EXCEL.EXE
4308	EXCEL.EXE
4308	EXCEL.EXE
4308	EXCEL.EXE
4308	EXCEL.EXE
4308	EXCEL.EXE
4308	EXCEL.EXE
4308	EXCEL.EXE
4308	EXCEL.EXE
4308	EXCEL.EXE
4308	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4308 wrote to memory of 1640	4308	EXCEL.EXE	87
PID 4308 wrote to memory of 1640	4308	EXCEL.EXE	87
PID 4308 wrote to memory of 3908	4308	EXCEL.EXE	91
PID 4308 wrote to memory of 3908	4308	EXCEL.EXE	91
PID 4308 wrote to memory of 4800	4308	EXCEL.EXE	93
PID 4308 wrote to memory of 4800	4308	EXCEL.EXE	93

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\486011410d80fc17aaa070ed2bbb0367419b79fb77da01d503f84fad4dffe342.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:4308
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\wdusx1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1640
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\wdusx2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3908
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\wdusx3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4800

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

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Downloads

memory/4308-0-0x00007FFD60470000-0x00007FFD60480000-memory.dmp

Filesize
64KB

Download
memory/4308-3-0x00007FFD60470000-0x00007FFD60480000-memory.dmp

Filesize
64KB

Download
memory/4308-4-0x00007FFD60470000-0x00007FFD60480000-memory.dmp

Filesize
64KB

Download
memory/4308-2-0x00007FFDA048D000-0x00007FFDA048E000-memory.dmp

Filesize
4KB

Download
memory/4308-1-0x00007FFD60470000-0x00007FFD60480000-memory.dmp

Filesize
64KB

Download
memory/4308-6-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/4308-7-0x00007FFD60470000-0x00007FFD60480000-memory.dmp

Filesize
64KB

Download
memory/4308-10-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/4308-12-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/4308-11-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/4308-9-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/4308-5-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/4308-8-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/4308-15-0x00007FFD5E220000-0x00007FFD5E230000-memory.dmp

Filesize
64KB

Download
memory/4308-14-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/4308-13-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download
memory/4308-16-0x00007FFD5E220000-0x00007FFD5E230000-memory.dmp

Filesize
64KB

Download
memory/4308-33-0x00007FFDA03F0000-0x00007FFDA05E5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads