44bcf11f0ea0f7abb29cf5ab332319f1ee001f3b15972d7ec13bc255ad011098

Analysis

max time kernel
144s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
03/11/2022, 14:36

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General

Target

44bcf11f0ea0f7abb29cf5ab332319f1ee001f3b15972d7ec13bc255ad011098.xls
Size

217KB
MD5

1004b0863be0a3b8cd170364665d7a93
SHA1

988d78c42274621be353cafc5a1c45dadf4e9ebf
SHA256

44bcf11f0ea0f7abb29cf5ab332319f1ee001f3b15972d7ec13bc255ad011098
SHA512

0bcd21a0e4664dbc89400000d717ae4f1464822ad991ab6eaf852a6b46ba51a57f694af7f111bc95b9543c540e3e72f42b8612a29f98fa6d5d82814ee0ddee01
SSDEEP

6144:OKpb8rGYrMPe3q7Q0XV5xtuEsi8/dg8yY+TAQXTHGUMEyP5p6f5jQmN:nbGUMVWlbN

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://kabaruntukrakyat.com/wp-content/B9oJ0jh/

xlm40.dropper

http://coinkub.com/wp-content/WwrJvjumS/

xlm40.dropper

https://aberractivity.hu/iqq/Dmtv/

xlm40.dropper

https://anamafegarcia.es/css/HfFXMTXvc40t/

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	2776	4752	regsvr32.exe	66
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4832	4752	regsvr32.exe	66
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3752	4752	regsvr32.exe	66
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2912	4752	regsvr32.exe	66

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4752	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4752	EXCEL.EXE
4752	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4752	EXCEL.EXE
4752	EXCEL.EXE
4752	EXCEL.EXE
4752	EXCEL.EXE
4752	EXCEL.EXE
4752	EXCEL.EXE
4752	EXCEL.EXE
4752	EXCEL.EXE
4752	EXCEL.EXE
4752	EXCEL.EXE
4752	EXCEL.EXE
4752	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 2776	4752	EXCEL.EXE	69
PID 4752 wrote to memory of 2776	4752	EXCEL.EXE	69
PID 4752 wrote to memory of 4832	4752	EXCEL.EXE	70
PID 4752 wrote to memory of 4832	4752	EXCEL.EXE	70
PID 4752 wrote to memory of 3752	4752	EXCEL.EXE	71
PID 4752 wrote to memory of 3752	4752	EXCEL.EXE	71
PID 4752 wrote to memory of 2912	4752	EXCEL.EXE	72
PID 4752 wrote to memory of 2912	4752	EXCEL.EXE	72

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\44bcf11f0ea0f7abb29cf5ab332319f1ee001f3b15972d7ec13bc255ad011098.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:4752
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:2776
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4832
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3752
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:2912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4752-118-0x00007FF991080000-0x00007FF991090000-memory.dmp

Filesize
64KB

Download
memory/4752-117-0x00007FF991080000-0x00007FF991090000-memory.dmp

Filesize
64KB

Download
memory/4752-128-0x00007FF98D610000-0x00007FF98D620000-memory.dmp

Filesize
64KB

Download
memory/4752-129-0x00007FF98D610000-0x00007FF98D620000-memory.dmp

Filesize
64KB

Download
memory/4752-119-0x00007FF991080000-0x00007FF991090000-memory.dmp

Filesize
64KB

Download
memory/4752-116-0x00007FF991080000-0x00007FF991090000-memory.dmp

Filesize
64KB

Download
memory/4752-294-0x00007FF991080000-0x00007FF991090000-memory.dmp

Filesize
64KB

Download
memory/4752-295-0x00007FF991080000-0x00007FF991090000-memory.dmp

Filesize
64KB

Download
memory/4752-296-0x00007FF991080000-0x00007FF991090000-memory.dmp

Filesize
64KB

Download
memory/4752-297-0x00007FF991080000-0x00007FF991090000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads