19fca99f14a377f8bf184747082475c652b176e1d0546130eb4a48f928b8565c

Analysis

max time kernel
120s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
02-03-2023 13:27

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General

Target

2022-11-12-663e1bfcc66afb5a44b67a298869b521_unzipped.xls
Size

96KB
MD5

663e1bfcc66afb5a44b67a298869b521
SHA1

f40f0294d9a6e7ff1b3b1133d56169f0a3ff57a5
SHA256

19fca99f14a377f8bf184747082475c652b176e1d0546130eb4a48f928b8565c
SHA512

90c66070eb50e63745efaa3b31e688444ee9619ac6e0f27c1c65679a26be7e2c79b7d0da81a31598948973057744fde2507c0ec25a8d1b448405a97bb0d9af17
SSDEEP

3072:CKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgyOmH4wbH5t:CKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgyZ

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://web.ferno.sk/wp-content/pWLdtgNRJjGIs4V/

xlm40.dropper

http://www.etelefon.ro/docs/csv_import/Njpcdo0xA8qV5Qik/

xlm40.dropper

http://weathermaps.ir/maps/A8srcXuPMyk6EAbW3/

xlm40.dropper

http://dominionai.org/TI55pT5PYd/VPHWTnzQe/

Signatures

Process spawned unexpected child process 4 IoCs

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

Processes:

regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.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	1344	3332	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3532	3332	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4612	3332	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1384	3332	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

3332 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3332 EXCEL.EXE
3332 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3332	EXCEL.EXE
3332	EXCEL.EXE
3332	EXCEL.EXE
3332	EXCEL.EXE
3332	EXCEL.EXE
3332	EXCEL.EXE
3332	EXCEL.EXE
3332	EXCEL.EXE
3332	EXCEL.EXE
3332	EXCEL.EXE
3332	EXCEL.EXE
3332	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3332 wrote to memory of 1344	3332	EXCEL.EXE	regsvr32.exe
PID 3332 wrote to memory of 1344	3332	EXCEL.EXE	regsvr32.exe
PID 3332 wrote to memory of 3532	3332	EXCEL.EXE	regsvr32.exe
PID 3332 wrote to memory of 3532	3332	EXCEL.EXE	regsvr32.exe
PID 3332 wrote to memory of 4612	3332	EXCEL.EXE	regsvr32.exe
PID 3332 wrote to memory of 4612	3332	EXCEL.EXE	regsvr32.exe
PID 3332 wrote to memory of 1384	3332	EXCEL.EXE	regsvr32.exe
PID 3332 wrote to memory of 1384	3332	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\2022-11-12-663e1bfcc66afb5a44b67a298869b521_unzipped.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:3332

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\scud1.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:1344

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\scud2.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:3532

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\scud3.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:4612

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\scud4.ooocccxxx
2⤵
- Process spawned unexpected child process
PID:1384

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

memory/3332-133-0x00007FF972A90000-0x00007FF972AA0000-memory.dmp

Filesize
64KB

Download
memory/3332-134-0x00007FF972A90000-0x00007FF972AA0000-memory.dmp

Filesize
64KB

Download
memory/3332-135-0x00007FF972A90000-0x00007FF972AA0000-memory.dmp

Filesize
64KB

Download
memory/3332-136-0x00007FF972A90000-0x00007FF972AA0000-memory.dmp

Filesize
64KB

Download
memory/3332-137-0x00007FF972A90000-0x00007FF972AA0000-memory.dmp

Filesize
64KB

Download
memory/3332-138-0x00007FF970490000-0x00007FF9704A0000-memory.dmp

Filesize
64KB

Download
memory/3332-139-0x00007FF970490000-0x00007FF9704A0000-memory.dmp

Filesize
64KB

Download