privateloader | 0e1dc7a84177af8d5ce9df7049e6fbd7ee7c4acf65e4e882383baa343700a85b

Analysis

max time kernel
540s
max time network
553s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
15-06-2024 20:57

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General

Target

setup.exe
Size

785.0MB
MD5

640e910d06ebab4b066a696ba0e78b55
SHA1

534e97d66e68eab6fa916fabe05beaef822b56e8
SHA256

9b5e9a1b37be8612f14d52bd6a1bfbb850a05164d677738bcf6ea41c1a1c97a6
SHA512

9dd5f8b06e675912e53833e4cc7a77ab06a3e25d7e23c907f351e715011c1096baaed0e8a1dd5ec56d69124988fb1bce082ee3cda3b5b70ee301fedb56b01177
SSDEEP

98304:rO0hNxrp27xGHwGZpRiE5ygmAfrjQxuN7:rOUnQAHwipRtw1ol

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

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

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

pid	Process
3932	setup.exe
3932	setup.exe

C:\Users\Admin\AppData\Local\Temp\setup.exe
"C:\Users\Admin\AppData\Local\Temp\setup.exe"
1⤵
- Modifies firewall policy service
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:3932

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:4092

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:2788

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

memory/3932-0-0x00007FF680F05000-0x00007FF68109A000-memory.dmp

Filesize
1.6MB

Download
memory/3932-1-0x00007FF81C7F0000-0x00007FF81C7F2000-memory.dmp

Filesize
8KB

Download
memory/3932-3-0x00007FF81C5A0000-0x00007FF81C5A2000-memory.dmp

Filesize
8KB

Download
memory/3932-2-0x00007FF81C800000-0x00007FF81C802000-memory.dmp

Filesize
8KB

Download
memory/3932-5-0x00007FF81A060000-0x00007FF81A062000-memory.dmp

Filesize
8KB

Download
memory/3932-4-0x00007FF81C5B0000-0x00007FF81C5B2000-memory.dmp

Filesize
8KB

Download
memory/3932-6-0x00007FF81A070000-0x00007FF81A072000-memory.dmp

Filesize
8KB

Download
memory/3932-7-0x00007FF680DA0000-0x00007FF68139B000-memory.dmp

Filesize
6.0MB

Download
memory/3932-18-0x00007FF680F05000-0x00007FF68109A000-memory.dmp

Filesize
1.6MB

Download