a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d

Analysis

max time kernel
148s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240214-en
resource tags

arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system
submitted
04-04-2024 09:56

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General

Target

a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe
Size

4.7MB
MD5

71bcb10a37571ca7a49e688609c6c24b
SHA1

019ac2fdeae050df4dbf0a381e83a30ae2ed5ac1
SHA256

a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d
SHA512

68f21b90604d94bba96091a2bd689f5a35ce7a31805f508e156346a9cbd757701c3e25c3b64370665756e67a8a1f4433272cb506b3a7f17ab1772970b7bf6649
SSDEEP

49152:0EO2zT6t0eZ1xIWKlN997hVTtCHAzbWO5r8aZgiztBZN3bHZNBu2TgwUcYPtMr/y:0Bo00wxwlNbzlSk8FiptH7fgSD9UP3

Score

10^/10

evasion

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1"	a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe

Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 api.myip.com
6 ipinfo.io
2 api.myip.com
2 ipinfo.io

flow	ioc
3	api.myip.com
6	ipinfo.io
2	api.myip.com
2	ipinfo.io

Drops file in System32 directory 4 IoCs

Processes:

a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe

description	ioc	process
File opened for modification	C:\Windows\System32\GroupPolicy	a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe
File opened for modification	C:\Windows\System32\GroupPolicy\gpt.ini	a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe

pid	process
4624	a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe
4624	a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe

C:\Users\Admin\AppData\Local\Temp\a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe
"C:\Users\Admin\AppData\Local\Temp\a4224fceb2207443ceca6084ae5d1494d1e5dbf4c83e88e456024026e709a20d.exe"
1⤵
- Modifies firewall policy service
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:4624

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:3428

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:2988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\System32\GroupPolicy\gpt.ini

Filesize
127B

MD5
8ef9853d1881c5fe4d681bfb31282a01

SHA1
a05609065520e4b4e553784c566430ad9736f19f

SHA256
9228f13d82c3dc96b957769f6081e5bac53cffca4ffde0ba1e102d9968f184a2

SHA512
5ddee931a08cfea5bb9d1c36355d47155a24d617c2a11d08364ffc54e593064011dee4fea8ac5b67029cab515d3071f0ba0422bb76af492a3115272ba8feb005

Download Submit
memory/4624-1-0x00007FF7264F0000-0x00007FF726ED4000-memory.dmp

Filesize
9.9MB

Download
memory/4624-0-0x00007FFAB7FD0000-0x00007FFAB7FD2000-memory.dmp

Filesize
8KB

Download
memory/4624-2-0x00007FF7264F0000-0x00007FF726ED4000-memory.dmp

Filesize
9.9MB

Download
memory/4624-13-0x00007FF7264F0000-0x00007FF726ED4000-memory.dmp

Filesize
9.9MB

Download