privateloader | c10e7f6717cd8ac529043e6552d406c41a2c83f0f28e57c7e6084f91ce92ec25

General

Target

Install.exe
Size

4.0MB
MD5

72bd2dbeb056e803307652018a7846b8
SHA1

d3b1fd9f06555e2af3674178f06718dfc9b17019
SHA256

c10e7f6717cd8ac529043e6552d406c41a2c83f0f28e57c7e6084f91ce92ec25
SHA512

e39fecb7821fb1f7986f89f642cc6fd5a42393bfb1c1853767df932f5ff9da38c72d0904737e25836cdb8ef11fa518dc7d94b649d4c08e2b7e9b10d30245630f
SSDEEP

49152:W3C4Y214r2K1UYwaMf8KrPYvKNOdUqZkjyn3lieAPdy8U7H6RS8u3Wb7VB2jMo0:W3JobUM0PYCEuqCjkQG8500

Score

10^/10

privateloader evasion loader main themida trojan

Malware Config

Extracted

Family

privateloader

C2

http://91.241.19.125/pub.php?pub=one

http://sarfoods.com/index.php

208.67.104.60

Attributes

payload_url
https://cdn.discordapp.com/attachments/910842184708792331/931507465563045909/dingo_20220114120058.bmp
https://c.xyzgamec.com/userdown/2202/random.exe
http://193.56.146.76/Proxytest.exe
http://www.yzsyjyjh.com/askhelp23/askinstall23.exe
http://privacy-tools-for-you-780.com/downloads/toolspab3.exe
http://luminati-china.xyz/aman/casper2.exe
https://innovicservice.net/assets/vendor/counterup/RobCleanerInstlr95038215.exe
http://tg8.cllgxx.com/hp8/g1/yrpp1047.exe
https://cdn.discordapp.com/attachments/910842184708792331/930849718240698368/Roll.bmp
https://cdn.discordapp.com/attachments/910842184708792331/930850766787330068/real1201.bmp
https://cdn.discordapp.com/attachments/910842184708792331/930882959131693096/Installer.bmp
http://185.215.113.208/ferrari.exe
https://cdn.discordapp.com/attachments/910842184708792331/931233371110141962/LingeringsAntiphon.bmp
https://cdn.discordapp.com/attachments/910842184708792331/931285223709225071/russ.bmp
https://cdn.discordapp.com/attachments/910842184708792331/932720393201016842/filinnn.bmp
https://cdn.discordapp.com/attachments/910842184708792331/933436611427979305/build20k.bmp
https://c.xyzgamec.com/userdown/2202/random.exe
http://mnbuiy.pw/adsli/note8876.exe
http://www.yzsyjyjh.com/askhelp23/askinstall23.exe
http://luminati-china.xyz/aman/casper2.exe
https://suprimax.vet.br/css/fonts/OneCleanerInst942914.exe
http://tg8.cllgxx.com/hp8/g1/ssaa1047.exe
https://www.deezloader.app/files/Deezloader_Remix_Installer_64_bit_4.3.0_Setup.exe
https://www.deezloader.app/files/Deezloader_Remix_Installer_32_bit_4.3.0_Setup.exe
https://cdn.discordapp.com/attachments/910281601559167006/911516400005296219/anyname.exe
https://cdn.discordapp.com/attachments/910281601559167006/911516894660530226/PBsecond.exe
https://cdn.discordapp.com/attachments/910842184708792331/914047763304550410/Xpadder.bmp

Signatures

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

Processes:

Install.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Install.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Install.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

Processes:

Install.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Install.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Install.exe

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/516-134-0x0000000000140000-0x00000000008AE000-memory.dmp	themida
behavioral2/memory/516-141-0x0000000000140000-0x00000000008AE000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Install.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Install.exe
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

20 ipinfo.io
21 ipinfo.io

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Install.exe

flow	ioc
20	ipinfo.io
21	ipinfo.io

Drops file in System32 directory 4 IoCs

Processes:

InstallUtil.exe

description	ioc	process
File opened for modification	C:\Windows\System32\GroupPolicy	InstallUtil.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	InstallUtil.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	InstallUtil.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	InstallUtil.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

Install.exe

pid process

516 Install.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Install.exe

description pid process target process

PID 516 set thread context of 4424 516 Install.exe InstallUtil.exe

pid	process
516	Install.exe

description	pid	process	target process
PID 516 set thread context of 4424	516	Install.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

InstallUtil.exe

pid	process
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe
4424	InstallUtil.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Install.exe

description	pid	process	target process
PID 516 wrote to memory of 4424	516	Install.exe	InstallUtil.exe
PID 516 wrote to memory of 4424	516	Install.exe	InstallUtil.exe
PID 516 wrote to memory of 4424	516	Install.exe	InstallUtil.exe
PID 516 wrote to memory of 4424	516	Install.exe	InstallUtil.exe
PID 516 wrote to memory of 4424	516	Install.exe	InstallUtil.exe
PID 516 wrote to memory of 4424	516	Install.exe	InstallUtil.exe
PID 516 wrote to memory of 4424	516	Install.exe	InstallUtil.exe
PID 516 wrote to memory of 4424	516	Install.exe	InstallUtil.exe
PID 516 wrote to memory of 4424	516	Install.exe	InstallUtil.exe
PID 516 wrote to memory of 4424	516	Install.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Install.exe
"C:\Users\Admin\AppData\Local\Temp\Install.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:516

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:4424

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:3760

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:4304

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/516-142-0x00007FFFECBB0000-0x00007FFFECDA5000-memory.dmp

Filesize
2.0MB

Download
memory/516-134-0x0000000000140000-0x00000000008AE000-memory.dmp

Filesize
7.4MB

Download
memory/516-135-0x00007FFFECBB0000-0x00007FFFECDA5000-memory.dmp

Filesize
2.0MB

Download
memory/516-136-0x00007FFFCDCD0000-0x00007FFFCE791000-memory.dmp

Filesize
10.8MB

Download
memory/516-141-0x0000000000140000-0x00000000008AE000-memory.dmp

Filesize
7.4MB

Download
memory/516-132-0x0000000000140000-0x00000000008AE000-memory.dmp

Filesize
7.4MB

Download
memory/516-143-0x00007FFFCDCD0000-0x00007FFFCE791000-memory.dmp

Filesize
10.8MB

Download
memory/4424-137-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/4424-138-0x00000000005D88A2-mapping.dmp

Download
memory/4424-139-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/4424-140-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/4424-144-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download
memory/4424-145-0x0000000000400000-0x000000000066C000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads