e0f9d5d4e662c52d511d844f59fc9e13f998346948183969c13968651a273482

Analysis

max time kernel
135s
max time network
132s
platform
windows10_x64
resource
win10
submitted
16/07/2020, 18:27

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General

Target

form_05241580.xls
Size

274KB
MD5

7a6d0e715445d634d46c1276fc436ccf
SHA1

c0cdce5e9b8566a53d32c8b3c2fc759263627972
SHA256

e0f9d5d4e662c52d511d844f59fc9e13f998346948183969c13968651a273482
SHA512

cfe4bb24a98574d446d9759a0b1cca634d641ef6a34140bb1fc171e66555ee22796116696af9080ed74fc34c0d0aecaca1e41336455e059b06ed059a0d803312

Score

10^/10

Malware Config

Signatures

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE
3104	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3104	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	3000	3104	rundll32.exe	66

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3104 wrote to memory of 3000	3104	EXCEL.EXE	71
PID 3104 wrote to memory of 3000	3104	EXCEL.EXE	71

Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

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

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\form_05241580.xls"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
PID:3104
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\lKCxKbp\LyIfaEG\xYjdvsP.dll,StartW
  2⤵
  - Process spawned unexpected child process
  PID:3000

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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