privateloader | fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3

General

Target

fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe
Size

4.1MB
MD5

cb4118382e3f97f0db04938a4e31e3e1
SHA1

d31dff9e56df945247cbb0598bf0c1d27aedcccf
SHA256

fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3
SHA512

a37f4faef965c33f48af389016911ba3c255f14d7b4ee33fef6e20771844abeab37a273c60ee5501ccfbb5fecce5027201d08e4344a4ddbab672449cfb7b149c
SSDEEP

98304:Ie7PCLZ0+LSlhnzXRhtvbp6DdM0NwIwUd3iXGNZ:IeDCsVzX3xoDhNbfd3iKZ

Score

10^/10

privateloader evasion loader themida trojan

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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1"	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe

PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
loader privateloader
Privateloader family
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__	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.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\VideoBiosVersion	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2268-0-0x000000013F310000-0x000000013FE63000-memory.dmp	themida
behavioral1/memory/2268-1-0x000000013F310000-0x000000013FE63000-memory.dmp	themida
behavioral1/memory/2268-11-0x000000013F310000-0x000000013FE63000-memory.dmp	themida
behavioral1/memory/2268-9-0x000000013F310000-0x000000013FE63000-memory.dmp	themida
behavioral1/memory/2268-10-0x000000013F310000-0x000000013FE63000-memory.dmp	themida
behavioral1/memory/2268-12-0x000000013F310000-0x000000013FE63000-memory.dmp	themida
behavioral1/memory/2268-20-0x000000013F310000-0x000000013FE63000-memory.dmp	themida
behavioral1/memory/2268-25-0x000000013F310000-0x000000013FE63000-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	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\GroupPolicy	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe
File opened for modification	C:\Windows\System32\GroupPolicy\gpt.ini	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2268	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2252	2268	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe	30
PID 2268 wrote to memory of 2252	2268	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe	30
PID 2268 wrote to memory of 2252	2268	fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe	30

C:\Users\Admin\AppData\Local\Temp\fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.exe
"C:\Users\Admin\AppData\Local\Temp\fcd465bfb29ad1ee9c3344c27035fe6721f7c634ae714db808454b2d14e6ecd3.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
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2268 -s 400
  2⤵
  PID:2252

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

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

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

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

Filesize
127B

MD5
8ef9853d1881c5fe4d681bfb31282a01

SHA1
a05609065520e4b4e553784c566430ad9736f19f

SHA256
9228f13d82c3dc96b957769f6081e5bac53cffca4ffde0ba1e102d9968f184a2

SHA512
5ddee931a08cfea5bb9d1c36355d47155a24d617c2a11d08364ffc54e593064011dee4fea8ac5b67029cab515d3071f0ba0422bb76af492a3115272ba8feb005

Download Submit
memory/2268-9-0x000000013F310000-0x000000013FE63000-memory.dmp

Filesize
11.3MB

Download
memory/2268-10-0x000000013F310000-0x000000013FE63000-memory.dmp

Filesize
11.3MB

Download
memory/2268-7-0x000007FEFDA40000-0x000007FEFDAAC000-memory.dmp

Filesize
432KB

Download
memory/2268-6-0x000007FEFDA53000-0x000007FEFDA54000-memory.dmp

Filesize
4KB

Download
memory/2268-11-0x000000013F310000-0x000000013FE63000-memory.dmp

Filesize
11.3MB

Download
memory/2268-0-0x000000013F310000-0x000000013FE63000-memory.dmp

Filesize
11.3MB

Download
memory/2268-1-0x000000013F310000-0x000000013FE63000-memory.dmp

Filesize
11.3MB

Download
memory/2268-8-0x000007FEFDA40000-0x000007FEFDAAC000-memory.dmp

Filesize
432KB

Download
memory/2268-12-0x000000013F310000-0x000000013FE63000-memory.dmp

Filesize
11.3MB

Download
memory/2268-20-0x000000013F310000-0x000000013FE63000-memory.dmp

Filesize
11.3MB

Download
memory/2268-22-0x000007FEFDA40000-0x000007FEFDAAC000-memory.dmp

Filesize
432KB

Download
memory/2268-21-0x000007FEFDA53000-0x000007FEFDA54000-memory.dmp

Filesize
4KB

Download
memory/2268-26-0x000007FEFDA40000-0x000007FEFDAAC000-memory.dmp

Filesize
432KB

Download
memory/2268-25-0x000000013F310000-0x000000013FE63000-memory.dmp

Filesize
11.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads