96552f1a1d6b48dfbbab2cec3d8cf724e1e31b1a2219643d351692f9ca557d79

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2023 19:21

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General

Target

96552f1a1d6b48dfbbab2cec3d8cf724e1e31b1a2219643d351692f9ca557d79.xls
Size

36KB
MD5

7f769c51a14e16bec3873cd1c37aba74
SHA1

577b7a6ee62833f540d66320150d74973bb17919
SHA256

96552f1a1d6b48dfbbab2cec3d8cf724e1e31b1a2219643d351692f9ca557d79
SHA512

e7e9ad7d8be1a0beb11f2763fc67b0c591cb8c6a93325ca546c85bdc3a10756108de96fa68fda56c6bd4d1bb9774f9f16aed0076782541a65dc0f254e25ff391
SSDEEP

768:xPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJztBLXajeg0xMAbl:5ok3hbdlylKsgqopeJBWhZFGkE+cL2Nk

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

explorer.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	2700	2220	explorer.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 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

Modifies registry class 1 IoCs

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2220 EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings	explorer.exe

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE
2220	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEexplorer.exe

description	pid	process	target process
PID 2220 wrote to memory of 2700	2220	EXCEL.EXE	explorer.exe
PID 2220 wrote to memory of 2700	2220	EXCEL.EXE	explorer.exe
PID 1340 wrote to memory of 3688	1340	explorer.exe	WScript.exe
PID 1340 wrote to memory of 3688	1340	explorer.exe	WScript.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\96552f1a1d6b48dfbbab2cec3d8cf724e1e31b1a2219643d351692f9ca557d79.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2220

C:\Windows\explorer.exe
explorer.exe C:\Users\Public\Documents\m2UpAz.vbs
2⤵
- Process spawned unexpected child process
PID:2700

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1340

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\m2UpAz.vbs"
2⤵
PID:3688

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\Public\Documents\m2UpAz.vbs
Filesize
546B

MD5
df5881e8956bad715d9f9097159c08a9

SHA1
3e4fa2580b3d2217e77645ebaa55dbdd98d2d421

SHA256
1ee7ec08344053bc4e73f074c07d0c2b738d5d61b84e9aadb5ebcd4daa70df91

SHA512
bfba74fd882423f21636fe3b0f38bdad1b1fd7b50265a42e23b73303b911331d0821a461617aeb36c89b62d35c55e26ffe198401dac88ac5e679b22308c0872e

Download Submit
memory/2220-132-0x00007FFE2C5B0000-0x00007FFE2C5C0000-memory.dmp

Filesize
64KB

Download
memory/2220-133-0x00007FFE2C5B0000-0x00007FFE2C5C0000-memory.dmp

Filesize
64KB

Download
memory/2220-134-0x00007FFE2C5B0000-0x00007FFE2C5C0000-memory.dmp

Filesize
64KB

Download
memory/2220-135-0x00007FFE2C5B0000-0x00007FFE2C5C0000-memory.dmp

Filesize
64KB

Download
memory/2220-136-0x00007FFE2C5B0000-0x00007FFE2C5C0000-memory.dmp

Filesize
64KB

Download
memory/2220-137-0x00007FFE2A550000-0x00007FFE2A560000-memory.dmp

Filesize
64KB

Download
memory/2220-138-0x00007FFE2A550000-0x00007FFE2A560000-memory.dmp

Filesize
64KB

Download
memory/2700-139-0x0000000000000000-mapping.dmp

Download
memory/3688-141-0x0000000000000000-mapping.dmp

Download