privateloader | e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e | Triage

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
02-09-2024 19:14

Sharing

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General

Target

e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe
Size

4.3MB
MD5

61d67e67d5492a03cd4a04b11e6c737c
SHA1

f6ed2279bfd5fb2c42af498b4356ed460ff48d58
SHA256

e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e
SHA512

e94be7bafe8e3ac5f9e703d777351fd60bdb3b78def6adec748c1d3d9867cd164a000bf0d82ef4b44ab9302866aeb7ffe8adf8c18e74b075c30f4213aafd0722
SSDEEP

98304:HEQQ7VWJEL5xZdj/MFScKbeppRZRxWwDv3yiv:khV35xHoAcMeVgwDvv

Score

10^/10

privateloader evasion loader

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 1 IoCs

Modify Registry

Windows Service

Disable or Modify System Firewall

Processes:

e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1"	e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.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:

e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe

description	ioc	process
File opened for modification	C:\Windows\System32\GroupPolicy	e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe
File opened for modification	C:\Windows\System32\GroupPolicy\gpt.ini	e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe

pid process

2932 e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe

description	pid	process	target process
PID 2932 wrote to memory of 2612	2932	e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe	WerFault.exe
PID 2932 wrote to memory of 2612	2932	e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe	WerFault.exe
PID 2932 wrote to memory of 2612	2932	e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe
"C:\Users\Admin\AppData\Local\Temp\e3cd90fe855b430449aa00f87f135fc4d61f6a5e592dcba177e9067b00ab632e.exe"
1⤵
- Modifies firewall policy service
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2932 -s 388
  2⤵
  PID:2612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

Windows Service

Privilege Escalation

Create or Modify System Process

Windows Service

Defense Evasion

Impair Defenses

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2932-0-0x000000013F7F6000-0x000000013FAA4000-memory.dmp

Filesize
2.7MB

Download
memory/2932-3-0x0000000077D00000-0x0000000077D02000-memory.dmp

Filesize
8KB

Download
memory/2932-1-0x0000000077D00000-0x0000000077D02000-memory.dmp

Filesize
8KB

Download
memory/2932-36-0x000007FEFDCA0000-0x000007FEFDCA2000-memory.dmp

Filesize
8KB

Download
memory/2932-34-0x000007FEFDCA0000-0x000007FEFDCA2000-memory.dmp

Filesize
8KB

Download
memory/2932-31-0x000007FEFDC90000-0x000007FEFDC92000-memory.dmp

Filesize
8KB

Download
memory/2932-29-0x000007FEFDC90000-0x000007FEFDC92000-memory.dmp

Filesize
8KB

Download
memory/2932-26-0x0000000077D40000-0x0000000077D42000-memory.dmp

Filesize
8KB

Download
memory/2932-24-0x0000000077D40000-0x0000000077D42000-memory.dmp

Filesize
8KB

Download
memory/2932-22-0x0000000077D40000-0x0000000077D42000-memory.dmp

Filesize
8KB

Download
memory/2932-21-0x000000013F690000-0x000000013FEEE000-memory.dmp

Filesize
8.4MB

Download
memory/2932-20-0x0000000077D30000-0x0000000077D32000-memory.dmp

Filesize
8KB

Download
memory/2932-18-0x0000000077D30000-0x0000000077D32000-memory.dmp

Filesize
8KB

Download
memory/2932-16-0x0000000077D30000-0x0000000077D32000-memory.dmp

Filesize
8KB

Download
memory/2932-15-0x0000000077D20000-0x0000000077D22000-memory.dmp

Filesize
8KB

Download
memory/2932-13-0x0000000077D20000-0x0000000077D22000-memory.dmp

Filesize
8KB

Download
memory/2932-11-0x0000000077D20000-0x0000000077D22000-memory.dmp

Filesize
8KB

Download
memory/2932-10-0x0000000077D10000-0x0000000077D12000-memory.dmp

Filesize
8KB

Download
memory/2932-8-0x0000000077D10000-0x0000000077D12000-memory.dmp

Filesize
8KB

Download
memory/2932-6-0x0000000077D10000-0x0000000077D12000-memory.dmp

Filesize
8KB

Download
memory/2932-5-0x0000000077D00000-0x0000000077D02000-memory.dmp

Filesize
8KB

Download
memory/2932-48-0x000000013F7F6000-0x000000013FAA4000-memory.dmp

Filesize
2.7MB

Download
memory/2932-49-0x000000013F690000-0x000000013FEEE000-memory.dmp

Filesize
8.4MB

Download