e847997f0901714a38c9e484a895db2fac80cb34634db3c8ab769d593c6b2a11

Analysis

max time kernel
147s
max time network
144s
platform
windows10_x64
resource
win10v20201028
submitted
14-01-2021 16:18

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General

Target

e847997f0901714a38c9e484a895db2fac80cb34634db3c8ab769d593c6b2a11.xls
Size

54KB
MD5

71722c4f9794fe1f6b97cad66fc6a37b
SHA1

c849af63e5830dc6107b11095cb6eb73db24daec
SHA256

e847997f0901714a38c9e484a895db2fac80cb34634db3c8ab769d593c6b2a11
SHA512

a1d881d2503a7503bbce2e33eaa4312bf5cff0c6161fe4901b065031c5a00697fd375ae8b96add943c0ab674ebddbced512bdbab2eb39df1eadbf389c2189528

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	1364	828	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

828 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
828	EXCEL.EXE
828	EXCEL.EXE
828	EXCEL.EXE
828	EXCEL.EXE
828	EXCEL.EXE
828	EXCEL.EXE
828	EXCEL.EXE
828	EXCEL.EXE
828	EXCEL.EXE
828	EXCEL.EXE
828	EXCEL.EXE
828	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 828 wrote to memory of 1364 828 EXCEL.EXE rundll32.exe
PID 828 wrote to memory of 1364 828 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 828 wrote to memory of 1364	828	EXCEL.EXE	rundll32.exe
PID 828 wrote to memory of 1364	828	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\e847997f0901714a38c9e484a895db2fac80cb34634db3c8ab769d593c6b2a11.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:828

C:\Windows\SYSTEM32\rundll32.exe
rundll32 C:\IntelCompany\JIOLAS.RRTTOOKK,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1364

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/828-2-0x00007FFAEE3B0000-0x00007FFAEE9E7000-memory.dmp

Filesize
6.2MB

Download
memory/1364-3-0x0000000000000000-mapping.dmp

Download