f5a313c5353ae0d1cede7bd5e234bfd3a4d7abb5e877bd2903d8d7572e9ee4d6

Analysis

max time kernel
149s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
19-04-2023 10:21

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General

Target

f5a313c5353ae0d1cede7bd5e234bfd3a4d7abb5e877bd2903d8d7572e9ee4d6.xls
Size

235KB
MD5

2654fdca7197f542cbd0be823a2a2a9f
SHA1

149b43a5f8f4d9bd63720b408f6c4e2a86401c6a
SHA256

f5a313c5353ae0d1cede7bd5e234bfd3a4d7abb5e877bd2903d8d7572e9ee4d6
SHA512

1534994b08b95c1a9879afba6a857817146b3aaa06484a65ff89f418b5ca31fa7ffbc2076efdface8f0036f5e3a7f98e95fe0120df3bfe2c2b06ea8e3b96bcaf
SSDEEP

6144:cKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgq9jWXcZZRBTq1BOzTwvOsPDslAvS32vI7p:09jVzTmszTwvTDy33LvfP1OWr

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://ohemaa.org/HUVm9mDKLW9C/ocrafhh.html

xlm40.dropper

https://madieandme.com.au/xnkpOLnvlN6T/ocrafh.html

xlm40.dropper

https://amerident.com.do/xdOMlaB0XJ7/ocraf.html

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

regsvr32.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	3552	384	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3604	384	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3064	384	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 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

Processes:

EXCEL.EXE

pid process

384 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

384 EXCEL.EXE
384 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 384 wrote to memory of 3552	384	EXCEL.EXE	regsvr32.exe
PID 384 wrote to memory of 3552	384	EXCEL.EXE	regsvr32.exe
PID 384 wrote to memory of 3604	384	EXCEL.EXE	regsvr32.exe
PID 384 wrote to memory of 3604	384	EXCEL.EXE	regsvr32.exe
PID 384 wrote to memory of 3064	384	EXCEL.EXE	regsvr32.exe
PID 384 wrote to memory of 3064	384	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\f5a313c5353ae0d1cede7bd5e234bfd3a4d7abb5e877bd2903d8d7572e9ee4d6.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:384

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" C:\Datop\test.test
2⤵
- Process spawned unexpected child process
PID:3552

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" C:\Datop\test1.test
2⤵
- Process spawned unexpected child process
PID:3604

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" C:\Datop\test2.test
2⤵
- Process spawned unexpected child process
PID:3064

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\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\D17FDD3AC73FCE90EBBB3DF8DEC5EE9D
Filesize
5B

MD5
5bfa51f3a417b98e7443eca90fc94703

SHA1
8c015d80b8a23f780bdd215dc842b0f5551f63bd

SHA256
bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128

SHA512
4cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399

Download Submit
memory/384-133-0x00007FFDCA7F0000-0x00007FFDCA800000-memory.dmp

Filesize
64KB

Download
memory/384-135-0x00007FFDCA7F0000-0x00007FFDCA800000-memory.dmp

Filesize
64KB

Download
memory/384-134-0x00007FFDCA7F0000-0x00007FFDCA800000-memory.dmp

Filesize
64KB

Download
memory/384-136-0x00007FFDCA7F0000-0x00007FFDCA800000-memory.dmp

Filesize
64KB

Download
memory/384-137-0x00007FFDCA7F0000-0x00007FFDCA800000-memory.dmp

Filesize
64KB

Download
memory/384-138-0x00007FFDC8620000-0x00007FFDC8630000-memory.dmp

Filesize
64KB

Download
memory/384-139-0x00007FFDC8620000-0x00007FFDC8630000-memory.dmp

Filesize
64KB

Download