e852f60c24ea989debb25b3e91efe34be20e8dd028f4e97e3d748858325a67a8

Analysis

max time kernel
138s
max time network
133s
platform
windows10_x64
resource
win10v200430
submitted
08/07/2020, 15:18

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General

Target

SecuriteInfo.com.Exploit.Siggen2.6573.751.23101.xls
Size

175KB
MD5

a7b9c762977f2a46e6adcca014df82c4
SHA1

f53b019c9574ab05637ceb632cd38905d37fe9ef
SHA256

e852f60c24ea989debb25b3e91efe34be20e8dd028f4e97e3d748858325a67a8
SHA512

c23028f2929643f3236badb06be82df0a01236178705692b8134ae26a949af1d6aa0e1a1a427112ac59d6d2af550cb3c38bbd54c974f218d50f36523e4460428

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	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
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2540	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	392	2540	explorer.exe	67

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 392	2540	EXCEL.EXE	71
PID 2540 wrote to memory of 392	2540	EXCEL.EXE	71
PID 1056 wrote to memory of 3760	1056	explorer.exe	73
PID 1056 wrote to memory of 3760	1056	explorer.exe	73

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\SecuriteInfo.com.Exploit.Siggen2.6573.751.23101.xls"
1⤵
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
PID:2540
- C:\Windows\explorer.exe
  explorer.exe C:\Users\Public\rIDrzkO0.vbs
  2⤵
  - Process spawned unexpected child process
  PID:392

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Public\rIDrzkO0.vbs"
  2⤵
  PID:3760

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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