84f1237656d4ce2d7e895b5dc1fc139362ff9d621c3ae043004893ed44a3b68d

Analysis

max time kernel
136s
max time network
132s
platform
windows10_x64
resource
win10v20201028
submitted
14-01-2021 16:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

84f1237656d4ce2d7e895b5dc1fc139362ff9d621c3ae043004893ed44a3b68d.xls
Size

54KB
MD5

037859244c296f20b4a9209f9cb2cbea
SHA1

9a8f158e5beab3802b31be0d4e063459d1688ef3
SHA256

84f1237656d4ce2d7e895b5dc1fc139362ff9d621c3ae043004893ed44a3b68d
SHA512

506da2360a745b73c50112fbef5f9d39d0e401b893c3d143725cfc7b1081094593562b18f74119595673fd9ab1670095274bcfe65f7f12caf805b92e5fb1ed23

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.

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4152	4700	rundll32.exe	EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid process

4700 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4700 EXCEL.EXE
4700 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4700	EXCEL.EXE
4700	EXCEL.EXE
4700	EXCEL.EXE
4700	EXCEL.EXE
4700	EXCEL.EXE
4700	EXCEL.EXE
4700	EXCEL.EXE
4700	EXCEL.EXE
4700	EXCEL.EXE
4700	EXCEL.EXE
4700	EXCEL.EXE
4700	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4700 wrote to memory of 4152	4700	EXCEL.EXE	rundll32.exe
PID 4700 wrote to memory of 4152	4700	EXCEL.EXE	rundll32.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\84f1237656d4ce2d7e895b5dc1fc139362ff9d621c3ae043004893ed44a3b68d.xls"
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:4700

C:\Windows\SYSTEM32\rundll32.exe
rundll32 C:\IntelCompany\JIOLAS.RRTTOOKK,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4152

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4152-3-0x0000000000000000-mapping.dmp

Download
memory/4700-2-0x00007FF853020000-0x00007FF853657000-memory.dmp

Filesize
6.2MB

Download