a72d63cc39282fc2f056979dcbfa503a57359946f8f527cc7615938fd21ca73a

Analysis

max time kernel
138s
max time network
149s
platform
windows10_x64
resource
win10v200430
submitted
15-07-2020 21:06

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General

Target

File_0008656.xls
Size

341KB
MD5

26452ff471bf557d0e6d01a6d65517b5
SHA1

c5f89cecc9b9a7baeff94c922b21afa30e7836b7
SHA256

a72d63cc39282fc2f056979dcbfa503a57359946f8f527cc7615938fd21ca73a
SHA512

f7aff1fda98dbebe99dd867498dcb8f95eb9314541794e1b3a15210c7f10c5edb23e1ed727020a527dc816cfd3e0cbac64e3c3259f960007f1ecfbe7905a46ef

Score

10^/10

Malware Config

Signatures

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

Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1612	EXCEL.EXE

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	4020	1612	rundll32.exe	67

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 4020	1612	EXCEL.EXE	74
PID 1612 wrote to memory of 4020	1612	EXCEL.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

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\File_0008656.xls"
1⤵
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
PID:1612
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\RbwKxjL\hgIpHsw\hSzCWyE.dll,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:4020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

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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