f724a1be57984bdb96669ab8979dc48809fb73637c5459ba9e4b177c0f625bb5

Analysis

max time kernel
137s
max time network
146s
platform
windows10_x64
resource
win10v200430
submitted
15/07/2020, 16:43

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General

Target
Rec679.xls
Size 152KB
Sample200715-l7w2taf2hx
SHA256 f724a1be57984bdb96669ab8979dc48809fb73637c5459ba9e4b177c0f625bb5
MD5 fbc2b71e23ea217e792d0be06c50bf14
SHA1 5413c3f2187540e90d1bef73c6451da6edbd471f
SHA512 3cdbd52aad33bbc275b965d1ca6d8c3a9b7f892ef4a29d7a82eea4895fdb4ba7e778859a18466901e09488eb8fde8a0986e6566b032c89677238acb2cca92c75
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3932	3848	explorer.exe	67

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3848 wrote to memory of 3932	3848	EXCEL.EXE	72
PID 3848 wrote to memory of 3932	3848	EXCEL.EXE	72
PID 3636 wrote to memory of 3264	3636	explorer.exe	74
PID 3636 wrote to memory of 3264	3636	explorer.exe	74

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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000_Classes\Local Settings	explorer.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3848	EXCEL.EXE
3848	EXCEL.EXE
3848	EXCEL.EXE
3848	EXCEL.EXE
3848	EXCEL.EXE
3848	EXCEL.EXE
3848	EXCEL.EXE
3848	EXCEL.EXE
3848	EXCEL.EXE
3848	EXCEL.EXE
3848	EXCEL.EXE
3848	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3848	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\Rec679.xls"
1⤵
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
PID:3848
- C:\Windows\explorer.exe
  explorer.exe C:\Users\Admin\AppData\Local\Temp\zTBQ.vbs
  2⤵
  - Process spawned unexpected child process
  PID:3932

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
- Modifies registry class
PID:3636
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\zTBQ.vbs"
  2⤵
  PID:3264

Network

MITRE ATT&CK Enterprise v6

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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