privateloader | ecfe6fb22dff160829a258b0dc35703846e8eb30bc16e1ce549321736b89b448

General

Target

7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe
Size

4.2MB
MD5

362697c95a1c9964af1ab23ddfc29b04
SHA1

64f71233a4e12a1eab40fc9501c4f8c4c9eacba4
SHA256

7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9
SHA512

e100db0020c09ae6e4e8d08c2aca00a4ad4c9efffd01902c9fa502a17d43a86e842177d8191a06b6a996c1523c9d127fc34352721f726f46308af764a0404120
SSDEEP

98304:o8wDn6ZtqG8Qf1VbnrTVi6bXD4ItYZpKFpzDtnROkTgZKL1UJ:ojL6Zt0QPDDbzHOKFpTOkM4LyJ

Score

10^/10

privateloader evasion loader themida trojan

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"	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe

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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/1632-0-0x0000000140000000-0x0000000140F7A000-memory.dmp	themida
behavioral2/memory/1632-7-0x0000000140000000-0x0000000140F7A000-memory.dmp	themida
behavioral2/memory/1632-15-0x0000000140000000-0x0000000140F7A000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe

Looks up external IP address via web service 4 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
20	api.myip.com
21	api.myip.com
29	ipinfo.io
30	ipinfo.io

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe
File opened for modification	C:\Windows\System32\GroupPolicy	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe
File opened for modification	C:\Windows\System32\GroupPolicy\gpt.ini	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1632	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe
1632	7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe

C:\Users\Admin\AppData\Local\Temp\7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe
"C:\Users\Admin\AppData\Local\Temp\7298b43de9d8dc586ce35f452e67b98d234c2b005648ffb7e6a21bea06a8dcb9.exe"
1⤵
- Modifies firewall policy service
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:1632

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:3956

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:1748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1632-1-0x00007FFAB0F64000-0x00007FFAB0F65000-memory.dmp

Filesize
4KB

Download
memory/1632-0-0x0000000140000000-0x0000000140F7A000-memory.dmp

Filesize
15.5MB

Download
memory/1632-3-0x00007FFAB0F00000-0x00007FFAB11C9000-memory.dmp

Filesize
2.8MB

Download
memory/1632-2-0x00007FFAB0F00000-0x00007FFAB11C9000-memory.dmp

Filesize
2.8MB

Download
memory/1632-4-0x00007FFAB0F00000-0x00007FFAB11C9000-memory.dmp

Filesize
2.8MB

Download
memory/1632-5-0x00007FFAB0F00000-0x00007FFAB11C9000-memory.dmp

Filesize
2.8MB

Download
memory/1632-6-0x00007FFAB0F00000-0x00007FFAB11C9000-memory.dmp

Filesize
2.8MB

Download
memory/1632-7-0x0000000140000000-0x0000000140F7A000-memory.dmp

Filesize
15.5MB

Download
memory/1632-15-0x0000000140000000-0x0000000140F7A000-memory.dmp

Filesize
15.5MB

Download
memory/1632-16-0x00007FFAB0F64000-0x00007FFAB0F65000-memory.dmp

Filesize
4KB

Download
memory/1632-17-0x00007FFAB0F00000-0x00007FFAB11C9000-memory.dmp

Filesize
2.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads