privateloader | c463eb3a55bea9c16c13dcda339acc218b69b9b00c3b80f122cda9ad4c768b76

General

Target

Install.exe
Size

3.9MB
MD5

579e0401c23efcd244a640bbca966c27
SHA1

b4a86edb8a335949239ab94e84ec70b1955368ef
SHA256

c463eb3a55bea9c16c13dcda339acc218b69b9b00c3b80f122cda9ad4c768b76
SHA512

a7ab9362bbc9f8054755fc830ba3b0cd604eccb6a1a5efbb2a34672c7785cf59fb23ecb58d65ca7723f888f7d0e5d27db6d2e9fb3c3209d851d9d1d4d8df248a
SSDEEP

98304:AifLjIJQ1dI5vq/3t4QDFKpWGsuIpM3LJ7PDd+T6oC/CMzT:df0QqAd4QDFbB4J7LRj53

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/4648-133-0x0000000000A70000-0x00000000015EC000-memory.dmp	themida
behavioral2/memory/4648-143-0x0000000000A70000-0x00000000015EC000-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

91 ipinfo.io
92 ipinfo.io

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

flow	ioc
91	ipinfo.io
92	ipinfo.io

Drops file in System32 directory 4 IoCs

Processes:

InstallUtil.exe

description	ioc	process
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
File opened for modification	C:\Windows\System32\GroupPolicy	InstallUtil.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

Install.exe

pid process

4648 Install.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Install.exe

description pid process target process

PID 4648 set thread context of 5012 4648 Install.exe InstallUtil.exe

pid	process
4648	Install.exe

description	pid	process	target process
PID 4648 set thread context of 5012	4648	Install.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

InstallUtil.exe

pid	process
5012	InstallUtil.exe
5012	InstallUtil.exe
5012	InstallUtil.exe
5012	InstallUtil.exe
5012	InstallUtil.exe
5012	InstallUtil.exe
5012	InstallUtil.exe
5012	InstallUtil.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Install.exe

description	pid	process	target process
PID 4648 wrote to memory of 5012	4648	Install.exe	InstallUtil.exe
PID 4648 wrote to memory of 5012	4648	Install.exe	InstallUtil.exe
PID 4648 wrote to memory of 5012	4648	Install.exe	InstallUtil.exe
PID 4648 wrote to memory of 5012	4648	Install.exe	InstallUtil.exe
PID 4648 wrote to memory of 5012	4648	Install.exe	InstallUtil.exe
PID 4648 wrote to memory of 5012	4648	Install.exe	InstallUtil.exe
PID 4648 wrote to memory of 5012	4648	Install.exe	InstallUtil.exe
PID 4648 wrote to memory of 5012	4648	Install.exe	InstallUtil.exe
PID 4648 wrote to memory of 5012	4648	Install.exe	InstallUtil.exe
PID 4648 wrote to memory of 5012	4648	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:4648

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:5012

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:4352

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:3056

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

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Downloads

memory/4648-145-0x00007FF963CA0000-0x00007FF964761000-memory.dmp

Filesize
10.8MB

Download
memory/4648-143-0x0000000000A70000-0x00000000015EC000-memory.dmp

Filesize
11.5MB

Download
memory/4648-135-0x00007FF981CD0000-0x00007FF981EC5000-memory.dmp

Filesize
2.0MB

Download
memory/4648-136-0x00007FF963CA0000-0x00007FF964761000-memory.dmp

Filesize
10.8MB

Download
memory/4648-133-0x0000000000A70000-0x00000000015EC000-memory.dmp

Filesize
11.5MB

Download
memory/4648-137-0x0000000000A70000-0x00000000015EC000-memory.dmp

Filesize
11.5MB

Download
memory/4648-134-0x0000000000A70000-0x00000000015EC000-memory.dmp

Filesize
11.5MB

Download
memory/4648-139-0x00007FF963CA0000-0x00007FF964761000-memory.dmp

Filesize
10.8MB

Download
memory/4648-138-0x00007FF981CD0000-0x00007FF981EC5000-memory.dmp

Filesize
2.0MB

Download
memory/4648-144-0x00007FF981CD0000-0x00007FF981EC5000-memory.dmp

Filesize
2.0MB

Download
memory/5012-140-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download
memory/5012-142-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download
memory/5012-141-0x00000000005D88A2-mapping.dmp

Download
memory/5012-146-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download
memory/5012-147-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download
memory/5012-148-0x0000000000400000-0x000000000065C000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads