7b2579d888c3ae51d7938ace0faec10d2edcffbe0cb196d9362e37417ac12039

Analysis

max time kernel
149s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20230220-it
resource tags

arch:x64arch:x86image:win10v2004-20230220-itlocale:it-itos:windows10-2004-x64systemwindows
submitted
21-04-2023 06:17

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General

Target

o_1003.xlsm
Size

51KB
MD5

739e1dd4f08be0ae086d6b451ec4dce2
SHA1

f528453f1d497ec15719f4709bb1e4cf3090e1df
SHA256

7b2579d888c3ae51d7938ace0faec10d2edcffbe0cb196d9362e37417ac12039
SHA512

7029728b769ddc1b1a9255020c8a21838bdd6a3c6704491de95ecd6527d61467134132a99b2b5f068722d48eefa6ae4cfaa1753974d3cd521a639ff3cb3388f2
SSDEEP

768:aICkZNRvmHvnQvlSQHAamYDSmPq9A3Bj9DLC+9uSEcmQThnuG3KC0VfVhC:aItBvGvQ8ncDSmSIBlGeuSEcm2h0HVfm

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.ajaxmatters.com/c7g8t/kYHGlphIEPNOImddm1/

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1604	2604	regsvr32.exe	EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid process

2604 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2604 EXCEL.EXE
2604 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2604 wrote to memory of 1604	2604	EXCEL.EXE	regsvr32.exe
PID 2604 wrote to memory of 1604	2604	EXCEL.EXE	regsvr32.exe
PID 2604 wrote to memory of 1604	2604	EXCEL.EXE	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\o_1003.xlsm"
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:2604

C:\Windows\SysWow64\regsvr32.exe
C:\Windows\SysWow64\regsvr32.exe -s ..\wn.ocx
2⤵
- Process spawned unexpected child process
PID:1604

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\wn.ocx
Filesize
21KB

MD5
3018b454d61f3d083b818097e3ed8e20

SHA1
29adf4f7cf964687fdaa0a41b70268dfd2c4fdb7

SHA256
afe02210be64f5043a03e91f12f4eb7cbba46bab207dc0be4ac63632dd4f20ef

SHA512
0199fb55dd7fc4cf01e522091f3bfc722e9907e6d5344aa5695697c836c16c0c1cc164bd8ac2b1571668661cbbb77feeae695e59fcbe39fa98789e6f85e629a1

Download Submit
memory/2604-133-0x00007FFF4E130000-0x00007FFF4E140000-memory.dmp

Filesize
64KB

Download
memory/2604-134-0x00007FFF4E130000-0x00007FFF4E140000-memory.dmp

Filesize
64KB

Download
memory/2604-135-0x00007FFF4E130000-0x00007FFF4E140000-memory.dmp

Filesize
64KB

Download
memory/2604-136-0x00007FFF4E130000-0x00007FFF4E140000-memory.dmp

Filesize
64KB

Download
memory/2604-137-0x00007FFF4E130000-0x00007FFF4E140000-memory.dmp

Filesize
64KB

Download
memory/2604-138-0x00007FFF4BDA0000-0x00007FFF4BDB0000-memory.dmp

Filesize
64KB

Download
memory/2604-139-0x00007FFF4BDA0000-0x00007FFF4BDB0000-memory.dmp

Filesize
64KB

Download