privateloader | ee800a6102a9c87635e9f06dbc899653842ee9adec96e61d4355947639ae1602

Analysis

max time kernel
52s
max time network
64s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
17-06-2024 17:47

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General

Target

file/setup.exe
Size

724.0MB
MD5

81070ccb98cdd23344375c03acfd88ef
SHA1

7ac9cd45977e091869b651ed3c1e67a7a08cf601
SHA256

59fc1d6f6f94715eb00e104234dfb5dbb553488ce611c89177565c972d471520
SHA512

6213fb65173710da7a3c7fb705ab1bd4596545d906d9db96cce61e9ae4652a110b828c11fc6358b38e8897fd5989aad3dcbfdce311ac0621aa9e2aab90ff14d9
SSDEEP

196608:QTae6o2p7r55Bvyk+c9rWVCePOy7oac4RymLr+XGdkyRk6S:3g2115BqkdyN79tidd

Score

10^/10

privateloader evasion loader

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

setup.exe

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

PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
loader privateloader

Drops file in System32 directory 4 IoCs

Processes:

setup.exe

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

setup.exe

pid process

2148 setup.exe
2148 setup.exe

pid	process
2148	setup.exe
2148	setup.exe

C:\Users\Admin\AppData\Local\Temp\file\setup.exe
"C:\Users\Admin\AppData\Local\Temp\file\setup.exe"
1⤵
- Modifies firewall policy service
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:2148

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:1320

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:4912

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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/2148-2-0x00007FFEFAD00000-0x00007FFEFAD02000-memory.dmp

Filesize
8KB

Download
memory/2148-0-0x00007FFEFB3D0000-0x00007FFEFB3D2000-memory.dmp

Filesize
8KB

Download
memory/2148-1-0x00007FFEFB3E0000-0x00007FFEFB3E2000-memory.dmp

Filesize
8KB

Download
memory/2148-3-0x00007FF683515000-0x00007FF683BF5000-memory.dmp

Filesize
6.9MB

Download
memory/2148-6-0x00007FFEF8A40000-0x00007FFEF8A42000-memory.dmp

Filesize
8KB

Download
memory/2148-5-0x00007FFEF8A30000-0x00007FFEF8A32000-memory.dmp

Filesize
8KB

Download
memory/2148-4-0x00007FFEFAD10000-0x00007FFEFAD12000-memory.dmp

Filesize
8KB

Download
memory/2148-7-0x00007FF6833B0000-0x00007FF6847D4000-memory.dmp

Filesize
20.1MB

Download
memory/2148-18-0x00007FF683515000-0x00007FF683BF5000-memory.dmp

Filesize
6.9MB

Download