77f0075657d4275615fc35fa3008ed59f05a0b4e6fb785af1fd236b3abc0d1b4

Analysis

max time kernel
101s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2023 06:17

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General

Target

invoice.xls
Size

1.3MB
MD5

ccd88bef786f8ea5476f550b4bf3328a
SHA1

eb36320094269ca0e3c7ebcb8405b2d41ec35bf2
SHA256

77f0075657d4275615fc35fa3008ed59f05a0b4e6fb785af1fd236b3abc0d1b4
SHA512

8cddfd64a141365c9d13b2d0ed329bc4fc21a2d2c623d51b7c29b62c7eb2e9233bc0129df8603f9c1b3a8a0ee6965e84f3100edefcff9f15639ff0d721f66242
SSDEEP

24576:WLK+WQmmav30xMSSMMednErP6bvdXXXXXXXXXXXXUXXXXXXXXXXXXXXXXXpSSMM5:WLKzQmmQ30uMM6uMsR6lr3DGbP

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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4316 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4316 EXCEL.EXE
4316 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE
4316	EXCEL.EXE

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\invoice.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4316

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\Local\Microsoft\Windows\INetCache\Content.MSO\97B12679.emf
Filesize
249KB

MD5
1a7fbc59e6099e8c42e1f3ea1fc1e57c

SHA1
069f119c72e0cf9fbb1149b7c55627bc5da20a89

SHA256
59309207b0a12b350fa5936f92c9cc1102fcacbb977717edc979fec025ae708f

SHA512
669c1e823eb91fb5ea8c76ee16dcfc8ee415421871b9d7035dbc1a234712b9e80311b21d8aeb61f99c69367c279774e54c56870cede82916b551add45e073ed1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Content.MSO\B242A26.emf
Filesize
1.4MB

MD5
d69c22a341e111feea69df6d8c655d60

SHA1
ac862337f2efa43627508927f5052ce694012206

SHA256
05b2053bf1d070d6034b45cd79b54d80da3c6d88d016671a345e75048b1a68db

SHA512
d4db33ed046b3c9ba09c4b3feac17b1fe2e75fce67f4154fd795d504708c295a1e3c8331ed3d6c3ee9950c936c4cc25b5d690558c26f2e1f7771bd5eb275822c

Download Submit
memory/4316-139-0x00007FFD0F6D0000-0x00007FFD0F6E0000-memory.dmp

Filesize
64KB

Download
memory/4316-136-0x00007FFD11DF0000-0x00007FFD11E00000-memory.dmp

Filesize
64KB

Download
memory/4316-137-0x00007FFD11DF0000-0x00007FFD11E00000-memory.dmp

Filesize
64KB

Download
memory/4316-138-0x00007FFD0F6D0000-0x00007FFD0F6E0000-memory.dmp

Filesize
64KB

Download
memory/4316-133-0x00007FFD11DF0000-0x00007FFD11E00000-memory.dmp

Filesize
64KB

Download
memory/4316-134-0x00007FFD11DF0000-0x00007FFD11E00000-memory.dmp

Filesize
64KB

Download
memory/4316-135-0x00007FFD11DF0000-0x00007FFD11E00000-memory.dmp

Filesize
64KB

Download
memory/4316-181-0x00007FFD11DF0000-0x00007FFD11E00000-memory.dmp

Filesize
64KB

Download
memory/4316-182-0x00007FFD11DF0000-0x00007FFD11E00000-memory.dmp

Filesize
64KB

Download
memory/4316-183-0x00007FFD11DF0000-0x00007FFD11E00000-memory.dmp

Filesize
64KB

Download
memory/4316-184-0x00007FFD11DF0000-0x00007FFD11E00000-memory.dmp

Filesize
64KB

Download