privateloader | cf3a80f6756543de0aa697ce7f3d248f8815af1f48d7801b313c8034cdce957b

Analysis

max time kernel
124s
max time network
129s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28-10-2024 19:48

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General

Target

setup.exe
Size

3.5MB
MD5

da016680911e1105d7ac212ac2989dc2
SHA1

341caff8ed2e2be65863300012d2f0d904149c7b
SHA256

cf3a80f6756543de0aa697ce7f3d248f8815af1f48d7801b313c8034cdce957b
SHA512

0e9072efef5df138a673464614f5c47e2e20932c981f126d6b7f5587350c72b28a1930b1c86f5439f95e3f09cf443ab1234958ba2116cc8d035f68254c426fba
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
Privateloader family
privateloader

Drops file in System32 directory 4 IoCs

Processes:

setup.exe

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

setup.exe

pid	Process
2880	setup.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

setup.exe

description	pid	Process	procid_target
PID 2880 wrote to memory of 2624	2880	setup.exe	30
PID 2880 wrote to memory of 2624	2880	setup.exe	30
PID 2880 wrote to memory of 2624	2880	setup.exe	30

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:2880
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2880 -s 220
  2⤵
  PID:2624

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

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Downloads

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

Filesize
127B

MD5
8ef9853d1881c5fe4d681bfb31282a01

SHA1
a05609065520e4b4e553784c566430ad9736f19f

SHA256
9228f13d82c3dc96b957769f6081e5bac53cffca4ffde0ba1e102d9968f184a2

SHA512
5ddee931a08cfea5bb9d1c36355d47155a24d617c2a11d08364ffc54e593064011dee4fea8ac5b67029cab515d3071f0ba0422bb76af492a3115272ba8feb005

Download Submit
memory/2880-4-0x0000000077D80000-0x0000000077D82000-memory.dmp

Filesize
8KB

Download
memory/2880-11-0x0000000077DA0000-0x0000000077DA2000-memory.dmp

Filesize
8KB

Download
memory/2880-2-0x0000000077D80000-0x0000000077D82000-memory.dmp

Filesize
8KB

Download
memory/2880-30-0x000007FEFDCD0000-0x000007FEFDCD2000-memory.dmp

Filesize
8KB

Download
memory/2880-0-0x0000000077D80000-0x0000000077D82000-memory.dmp

Filesize
8KB

Download
memory/2880-10-0x0000000077D90000-0x0000000077D92000-memory.dmp

Filesize
8KB

Download
memory/2880-8-0x0000000077D90000-0x0000000077D92000-memory.dmp

Filesize
8KB

Download
memory/2880-6-0x0000000077D90000-0x0000000077D92000-memory.dmp

Filesize
8KB

Download
memory/2880-5-0x000000013F935000-0x000000013FBD7000-memory.dmp

Filesize
2.6MB

Download
memory/2880-20-0x0000000077DB0000-0x0000000077DB2000-memory.dmp

Filesize
8KB

Download
memory/2880-15-0x0000000077DA0000-0x0000000077DA2000-memory.dmp

Filesize
8KB

Download
memory/2880-16-0x0000000077DB0000-0x0000000077DB2000-memory.dmp

Filesize
8KB

Download
memory/2880-13-0x0000000077DA0000-0x0000000077DA2000-memory.dmp

Filesize
8KB

Download
memory/2880-33-0x000000013F7D0000-0x000000013FF3E000-memory.dmp

Filesize
7.4MB

Download
memory/2880-28-0x000007FEFDCD0000-0x000007FEFDCD2000-memory.dmp

Filesize
8KB

Download
memory/2880-25-0x000007FEFDCC0000-0x000007FEFDCC2000-memory.dmp

Filesize
8KB

Download
memory/2880-23-0x000007FEFDCC0000-0x000007FEFDCC2000-memory.dmp

Filesize
8KB

Download
memory/2880-18-0x0000000077DB0000-0x0000000077DB2000-memory.dmp

Filesize
8KB

Download
memory/2880-43-0x000000013F935000-0x000000013FBD7000-memory.dmp

Filesize
2.6MB

Download
memory/2880-44-0x000000013F7D0000-0x000000013FF3E000-memory.dmp

Filesize
7.4MB

Download
memory/2880-45-0x000000013F7D0000-0x000000013FF3E000-memory.dmp

Filesize
7.4MB

Download