privateloader | 3c056fb4b1e0d834bf85eb5b09490be3f80fd8cbe6f4cae55a078075c3bc1d5e

Analysis

max time kernel
123s
max time network
128s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
07-07-2024 01:07

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

setup.exe
Size

792.0MB
MD5

d99235956d2438017dce77cbf6cb1176
SHA1

4121d8636b556b9da48081b2d818f3dcde3ac9a4
SHA256

74134cd0030b7681d9f753f8ecf68bf14937ba0261522bf05e5bef564cd8b8b0
SHA512

f090c7d82daf9f3ae9582e1d40f22272cb7e8911eae20c312704c7b814005816c8a78960b0ec21d376443db3c49c9d012052aa1f5692167b514fcf3211841351
SSDEEP

98304:rOuBF3zj5prjsd8VNCofaoUhXo8uG9pmSgQ7gCbHRd3bcEo:qunj5prvX8uGxgQZLcEo

Score

10^/10

privateloader evasion loader

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

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 1 IoCs

Processes:

setup.exe

pid process

2132 setup.exe

pid	process
2132	setup.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

setup.exe

description	pid	process	target process
PID 2132 wrote to memory of 2628	2132	setup.exe	WerFault.exe
PID 2132 wrote to memory of 2628	2132	setup.exe	WerFault.exe
PID 2132 wrote to memory of 2628	2132	setup.exe	WerFault.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
- Suspicious use of WriteProcessMemory
PID:2132

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2132 -s 224
2⤵
PID:2628

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

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2132-0-0x0000000077410000-0x0000000077412000-memory.dmp

Filesize
8KB

Download
memory/2132-2-0x0000000077410000-0x0000000077412000-memory.dmp

Filesize
8KB

Download
memory/2132-4-0x0000000077410000-0x0000000077412000-memory.dmp

Filesize
8KB

Download
memory/2132-5-0x0000000077420000-0x0000000077422000-memory.dmp

Filesize
8KB

Download
memory/2132-11-0x0000000077430000-0x0000000077432000-memory.dmp

Filesize
8KB

Download
memory/2132-13-0x0000000077430000-0x0000000077432000-memory.dmp

Filesize
8KB

Download
memory/2132-7-0x0000000077420000-0x0000000077422000-memory.dmp

Filesize
8KB

Download
memory/2132-9-0x0000000077420000-0x0000000077422000-memory.dmp

Filesize
8KB

Download
memory/2132-31-0x000000013FC10000-0x000000014037E000-memory.dmp

Filesize
7.4MB

Download
memory/2132-30-0x000007FEFD1F0000-0x000007FEFD1F2000-memory.dmp

Filesize
8KB

Download
memory/2132-28-0x000007FEFD1F0000-0x000007FEFD1F2000-memory.dmp

Filesize
8KB

Download
memory/2132-25-0x000007FEFD1E0000-0x000007FEFD1E2000-memory.dmp

Filesize
8KB

Download
memory/2132-23-0x000007FEFD1E0000-0x000007FEFD1E2000-memory.dmp

Filesize
8KB

Download
memory/2132-20-0x0000000077440000-0x0000000077442000-memory.dmp

Filesize
8KB

Download
memory/2132-18-0x0000000077440000-0x0000000077442000-memory.dmp

Filesize
8KB

Download
memory/2132-16-0x0000000077440000-0x0000000077442000-memory.dmp

Filesize
8KB

Download
memory/2132-15-0x0000000077430000-0x0000000077432000-memory.dmp

Filesize
8KB

Download
memory/2132-10-0x000000013FD75000-0x0000000140017000-memory.dmp

Filesize
2.6MB

Download
memory/2132-42-0x000000013FC10000-0x000000014037E000-memory.dmp

Filesize
7.4MB

Download