f6e373ce039a5cc8c40b1df8d89557ec40f5ee36f5add54efdfb81732e3d17ab

Analysis

max time kernel
149s
max time network
149s
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 16:45

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General

Target

f6e373ce039a5cc8c40b1df8d89557ec40f5ee36f5add54efdfb81732e3d17ab.xls
Size

217KB
MD5

8a8e7a345463f9c84c094d99aa3f23a1
SHA1

90951630600ff85cdf5ce3a0554044ddc4f9b6dd
SHA256

f6e373ce039a5cc8c40b1df8d89557ec40f5ee36f5add54efdfb81732e3d17ab
SHA512

d7fe557e9e5e5939eaf9ad273a8563c8a828b06c263e2248a2906cfab2b0be312988348e1115638ff6f044e3df66743709ee27fe177fa0bc4b076d90155ff240
SSDEEP

6144:OKpb8rGYrMPe3q7Q0XV5xtuEsi8/dg8yY+TAQXTHGUMEyP5p6f5jQmB:nbGUMVWlbB

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	5024	3084	regsvr32.exe	66
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5052	3084	regsvr32.exe	66
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3260	3084	regsvr32.exe	66
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4940	3084	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 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
3084	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3084	EXCEL.EXE
3084	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE
3084	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3084 wrote to memory of 5024	3084	EXCEL.EXE	68
PID 3084 wrote to memory of 5024	3084	EXCEL.EXE	68
PID 3084 wrote to memory of 5052	3084	EXCEL.EXE	69
PID 3084 wrote to memory of 5052	3084	EXCEL.EXE	69
PID 3084 wrote to memory of 3260	3084	EXCEL.EXE	70
PID 3084 wrote to memory of 3260	3084	EXCEL.EXE	70
PID 3084 wrote to memory of 4940	3084	EXCEL.EXE	71
PID 3084 wrote to memory of 4940	3084	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\f6e373ce039a5cc8c40b1df8d89557ec40f5ee36f5add54efdfb81732e3d17ab.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:3084
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:5024
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:5052
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:3260
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4940

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/3084-120-0x00007FF7E11B0000-0x00007FF7E11C0000-memory.dmp

Filesize
64KB

Download
memory/3084-121-0x00007FF7E11B0000-0x00007FF7E11C0000-memory.dmp

Filesize
64KB

Download
memory/3084-122-0x00007FF7E11B0000-0x00007FF7E11C0000-memory.dmp

Filesize
64KB

Download
memory/3084-123-0x00007FF7E11B0000-0x00007FF7E11C0000-memory.dmp

Filesize
64KB

Download
memory/3084-132-0x00007FF7DE5F0000-0x00007FF7DE600000-memory.dmp

Filesize
64KB

Download
memory/3084-133-0x00007FF7DE5F0000-0x00007FF7DE600000-memory.dmp

Filesize
64KB

Download
memory/3260-258-0x0000000000000000-mapping.dmp

Download
memory/4940-261-0x0000000000000000-mapping.dmp

Download
memory/5024-254-0x0000000000000000-mapping.dmp

Download
memory/5052-255-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads