4c3a45f5c43450ed6ec3942f6192e70b4487021a3156b812f31df3dfe2d493be

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 15:13

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General

Target

4c3a45f5c43450ed6ec3942f6192e70b4487021a3156b812f31df3dfe2d493be.xlsb
Size

2.9MB
MD5

58a4b6441d85dc415525bd6a7d6cdbe3
SHA1

d10630b93a1d29306c5da17e7a8921bb20fb0da1
SHA256

4c3a45f5c43450ed6ec3942f6192e70b4487021a3156b812f31df3dfe2d493be
SHA512

6b483624e92f147f750b646f7ddc44d0c756a4e3366c1a09a73cd8d093848745eb18308b5156aa80fe411cc4944cd32cde8d55f82d967f1c2ae973339afd2faf
SSDEEP

49152:2O9A9bwcPnUuxi4wl9Dk6oKQu94wqvw17IWLBchJYuzRGQTQVc4TcyfITM:2QAucfUpfQu94wqvckWLB0RGWQDTJfIA

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

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

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

pid	Process
5000	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
5000	EXCEL.EXE
5000	EXCEL.EXE

Suspicious use of SetWindowsHookEx 17 IoCs

pid	Process
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE
5000	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5000 wrote to memory of 4160	5000	EXCEL.EXE	93
PID 5000 wrote to memory of 4160	5000	EXCEL.EXE	93

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\4c3a45f5c43450ed6ec3942f6192e70b4487021a3156b812f31df3dfe2d493be.xlsb"
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:5000
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:4160

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/5000-0-0x00007FFD0A0B0000-0x00007FFD0A0C0000-memory.dmp

Filesize
64KB

Download
memory/5000-1-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-3-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-2-0x00007FFD0A0B0000-0x00007FFD0A0C0000-memory.dmp

Filesize
64KB

Download
memory/5000-4-0x00007FFD0A0B0000-0x00007FFD0A0C0000-memory.dmp

Filesize
64KB

Download
memory/5000-5-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-6-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-7-0x00007FFD0A0B0000-0x00007FFD0A0C0000-memory.dmp

Filesize
64KB

Download
memory/5000-9-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-8-0x00007FFD0A0B0000-0x00007FFD0A0C0000-memory.dmp

Filesize
64KB

Download
memory/5000-10-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-11-0x00007FFD07DA0000-0x00007FFD07DB0000-memory.dmp

Filesize
64KB

Download
memory/5000-12-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-13-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-14-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-15-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-16-0x00007FFD07DA0000-0x00007FFD07DB0000-memory.dmp

Filesize
64KB

Download
memory/5000-17-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-124-0x0000020462B20000-0x0000020462D20000-memory.dmp

Filesize
2.0MB

Download
memory/5000-782-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-785-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-786-0x00007FFD4A030000-0x00007FFD4A225000-memory.dmp

Filesize
2.0MB

Download
memory/5000-787-0x0000020462B20000-0x0000020462D20000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads