2ca25b70845560aa8fd2907d0e839dd995c8bf5565c36e24f36a11fdf97948f9

Analysis

max time kernel
149s
max time network
145s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
03-11-2022 19:07

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General

Target

2ca25b70845560aa8fd2907d0e839dd995c8bf5565c36e24f36a11fdf97948f9.xls
Size

217KB
MD5

0e3f005b13daae068a990ee41c67830a
SHA1

cfb2f8e2cfcd8926b39f8a3d80d4b7a8431c393f
SHA256

2ca25b70845560aa8fd2907d0e839dd995c8bf5565c36e24f36a11fdf97948f9
SHA512

349d6073da01208cdca640612df4d8925ea55ba418412a693900f26b37a1f102d7e988ce4a985620dfdcd3827591cf62c1c49b739bcc38b5bd0a0c657876d6c9
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	4572	4640	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	824	4640	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4148	4640	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5060	4640	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4640	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4640	EXCEL.EXE
4640	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4640	EXCEL.EXE
4640	EXCEL.EXE
4640	EXCEL.EXE
4640	EXCEL.EXE
4640	EXCEL.EXE
4640	EXCEL.EXE
4640	EXCEL.EXE
4640	EXCEL.EXE
4640	EXCEL.EXE
4640	EXCEL.EXE
4640	EXCEL.EXE
4640	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4640 wrote to memory of 4572	4640	EXCEL.EXE	68
PID 4640 wrote to memory of 4572	4640	EXCEL.EXE	68
PID 4640 wrote to memory of 824	4640	EXCEL.EXE	69
PID 4640 wrote to memory of 824	4640	EXCEL.EXE	69
PID 4640 wrote to memory of 4148	4640	EXCEL.EXE	70
PID 4640 wrote to memory of 4148	4640	EXCEL.EXE	70
PID 4640 wrote to memory of 5060	4640	EXCEL.EXE	71
PID 4640 wrote to memory of 5060	4640	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\2ca25b70845560aa8fd2907d0e839dd995c8bf5565c36e24f36a11fdf97948f9.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:4640
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4572
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:824
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4148
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:5060

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/4640-117-0x00007FFF5CC70000-0x00007FFF5CC80000-memory.dmp

Filesize
64KB

Download
memory/4640-118-0x00007FFF5CC70000-0x00007FFF5CC80000-memory.dmp

Filesize
64KB

Download
memory/4640-119-0x00007FFF5CC70000-0x00007FFF5CC80000-memory.dmp

Filesize
64KB

Download
memory/4640-120-0x00007FFF5CC70000-0x00007FFF5CC80000-memory.dmp

Filesize
64KB

Download
memory/4640-129-0x00007FFF59340000-0x00007FFF59350000-memory.dmp

Filesize
64KB

Download
memory/4640-130-0x00007FFF59340000-0x00007FFF59350000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads