6ab816519159dfa66fd5a0b100e1e34fcdd35259a3083f0bca99171fe91d094a

Analysis

max time kernel
128s
max time network
130s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
04/11/2022, 07:23

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General

Target

6ab816519159dfa66fd5a0b100e1e34fcdd35259a3083f0bca99171fe91d094a.xls
Size

217KB
MD5

bbeb53eb3e2f608a948502b8447fb5da
SHA1

b41516fb50b4cf0b64efdf2d2c90116ec3f8994f
SHA256

6ab816519159dfa66fd5a0b100e1e34fcdd35259a3083f0bca99171fe91d094a
SHA512

13d9ee678c20cfac5ede859c30514d31ca572c31982a2debb85bda7be2dc371aaf9aa4de38e6a6c3379d761338a8281da8a6b174207c48fe3d81798187014c58
SSDEEP

6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dg3yY+TAQXTHGUMEyP5p6f5jQmw:TbGUMVWlbw

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://wijsneusmedia.nl/cgi-bin/DvxmZndf0/

xlm40.dropper

http://brittknight.com/PHP/Aqxf09OugZ/

xlm40.dropper

http://nlasandbox.com/facebookpage/JFqg2Aqkl3UPZi6xGz/

xlm40.dropper

http://www.campusconindigital.org/moodle/LumMe/

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	2884	4816	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4132	4816	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4112	4816	regsvr32.exe	65
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5036	4816	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
4816	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4816	EXCEL.EXE
4816	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4816	EXCEL.EXE
4816	EXCEL.EXE
4816	EXCEL.EXE
4816	EXCEL.EXE
4816	EXCEL.EXE
4816	EXCEL.EXE
4816	EXCEL.EXE
4816	EXCEL.EXE
4816	EXCEL.EXE
4816	EXCEL.EXE
4816	EXCEL.EXE
4816	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 2884	4816	EXCEL.EXE	68
PID 4816 wrote to memory of 2884	4816	EXCEL.EXE	68
PID 4816 wrote to memory of 4132	4816	EXCEL.EXE	69
PID 4816 wrote to memory of 4132	4816	EXCEL.EXE	69
PID 4816 wrote to memory of 4112	4816	EXCEL.EXE	70
PID 4816 wrote to memory of 4112	4816	EXCEL.EXE	70
PID 4816 wrote to memory of 5036	4816	EXCEL.EXE	71
PID 4816 wrote to memory of 5036	4816	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\6ab816519159dfa66fd5a0b100e1e34fcdd35259a3083f0bca99171fe91d094a.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:4816
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:2884
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4132
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:4112
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
  2⤵
  - Process spawned unexpected child process
  PID:5036

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/4816-119-0x00007FFD13D20000-0x00007FFD13D30000-memory.dmp

Filesize
64KB

Download
memory/4816-128-0x00007FFD10A10000-0x00007FFD10A20000-memory.dmp

Filesize
64KB

Download
memory/4816-129-0x00007FFD10A10000-0x00007FFD10A20000-memory.dmp

Filesize
64KB

Download
memory/4816-116-0x00007FFD13D20000-0x00007FFD13D30000-memory.dmp

Filesize
64KB

Download
memory/4816-118-0x00007FFD13D20000-0x00007FFD13D30000-memory.dmp

Filesize
64KB

Download
memory/4816-117-0x00007FFD13D20000-0x00007FFD13D30000-memory.dmp

Filesize
64KB

Download
memory/4816-310-0x00007FFD13D20000-0x00007FFD13D30000-memory.dmp

Filesize
64KB

Download
memory/4816-311-0x00007FFD13D20000-0x00007FFD13D30000-memory.dmp

Filesize
64KB

Download
memory/4816-312-0x00007FFD13D20000-0x00007FFD13D30000-memory.dmp

Filesize
64KB

Download
memory/4816-313-0x00007FFD13D20000-0x00007FFD13D30000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads