33f4cdc87f17fb37ad8b3dd956e90a807dda3c65537bad975de6c0ef287282c1

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
10-08-2022 14:05

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General

Target

FIS_Remittance_Advice_ACH26596.xls
Size

234KB
MD5

e0946a78fc26ca171545392a44be7889
SHA1

072868e101afb93de47fc2b38832f24e8011a1c6
SHA256

33f4cdc87f17fb37ad8b3dd956e90a807dda3c65537bad975de6c0ef287282c1
SHA512

e4b947eb7816971e584438b91c2995c88e395ecc4636421608fc89d48c5c18856ac472ad004ee00d7e3dc45580e6caab1df50c98b7fd120d2d69bb33b7bc9ef7

Score

1^/10

Malware Config

Signatures

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 2 IoCs

Processes:

EXCEL.EXE

description	ioc	process
Set value (data)	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	EXCEL.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{1140A9A3-923D-4F6D-A166-D4C19301A106}\xeUMa.txt:Zone.Identifier	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4448 EXCEL.EXE

Suspicious use of SetWindowsHookEx 16 IoCs

Processes:

EXCEL.EXE

pid	process
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.EXE
4448	EXCEL.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\FIS_Remittance_Advice_ACH26596.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4448

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/4448-130-0x00007FF9A0DB0000-0x00007FF9A0DC0000-memory.dmp

Filesize
64KB

Download
memory/4448-131-0x00007FF9A0DB0000-0x00007FF9A0DC0000-memory.dmp

Filesize
64KB

Download
memory/4448-132-0x00007FF9A0DB0000-0x00007FF9A0DC0000-memory.dmp

Filesize
64KB

Download
memory/4448-133-0x00007FF9A0DB0000-0x00007FF9A0DC0000-memory.dmp

Filesize
64KB

Download
memory/4448-134-0x00007FF9A0DB0000-0x00007FF9A0DC0000-memory.dmp

Filesize
64KB

Download
memory/4448-135-0x00007FF99ED50000-0x00007FF99ED60000-memory.dmp

Filesize
64KB

Download
memory/4448-136-0x00007FF99ED50000-0x00007FF99ED60000-memory.dmp

Filesize
64KB

Download