3544a78168c49febda5d4a45bdf64bbeea10979d45c0c32ab4f0d6b4ec459001

General

Target

3544a78168c49febda5d4a45bdf64bbeea10979d45c0c32ab4f0d6b4ec459001.xls
Size

217KB
MD5

4441537b4f2823ed68e2f57856fbd1f8
SHA1

617d5010b3f4d8c81ea3512f19ddf1b29bdf7d39
SHA256

3544a78168c49febda5d4a45bdf64bbeea10979d45c0c32ab4f0d6b4ec459001
SHA512

cbc2b9b322660718db7894c5c6b711febe6ed59bd03039f0ae339e18d35e01a65195d14a47af360f09eefa2a0aceeada8ad0284a81d75ee026c2531aedebe7f6
SSDEEP

6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgXyY+TAQXTHGUMEyP5p6f5jQmW:DbGUMVWlbW

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://barkstage.es/wp-content/0E7NdYl7TZuHMJq7/

xlm40.dropper

http://contactworks.nl/images_old/NuEAhfF0PCFhvv/

xlm40.dropper

http://www.iam.ch/wp-content/cache/minify/O1OAjWnfen/

xlm40.dropper

https://www.elaboro.pl/wp-admin/J0hwyIMsk9YFIi/

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	4240	2780	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4256	2780	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4300	2780	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3032	2780	regsvr32.exe	65

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
2780	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2780	EXCEL.EXE
2780	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE
2780	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 4240	2780	EXCEL.EXE	68
PID 2780 wrote to memory of 4240	2780	EXCEL.EXE	68
PID 2780 wrote to memory of 4256	2780	EXCEL.EXE	69
PID 2780 wrote to memory of 4256	2780	EXCEL.EXE	69
PID 2780 wrote to memory of 4300	2780	EXCEL.EXE	70
PID 2780 wrote to memory of 4300	2780	EXCEL.EXE	70
PID 2780 wrote to memory of 3032	2780	EXCEL.EXE	71
PID 2780 wrote to memory of 3032	2780	EXCEL.EXE	71

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\3544a78168c49febda5d4a45bdf64bbeea10979d45c0c32ab4f0d6b4ec459001.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:2780
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4240
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4256
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4300
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3032

Network

MITRE ATT&CK Enterprise v6

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

memory/2780-310-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-117-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-118-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-119-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-128-0x00007FFD522E0000-0x00007FFD522F0000-memory.dmp

Filesize
64KB

Download
memory/2780-129-0x00007FFD522E0000-0x00007FFD522F0000-memory.dmp

Filesize
64KB

Download
memory/2780-313-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-312-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-311-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download
memory/2780-116-0x00007FFD55A00000-0x00007FFD55A10000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads