privateloader | 730cdb4e43116e24a85393ff36bf5abdd467543e0df6a93b5c957cba38eb004d

General

Target

install.exe
Size

6.0MB
MD5

cc8618f1849063da10e5cae0e5ae10e9
SHA1

9c3f426af7d3631fe098a4279170147623b8c6d7
SHA256

730cdb4e43116e24a85393ff36bf5abdd467543e0df6a93b5c957cba38eb004d
SHA512

f1222e54d51342a9e7fe0ee846a0c206f4e39b344d2534a83fadaf21e1f0d6dbcc4a065b135d78b5fa70f6530013b047e662eeafc2b2827bf63eca2ef31d65af
SSDEEP

98304:6aefkdb1p/LtGyTjTxyB58V+asD+rE/Y3Fxh3+rSvd9PSWojTj9SlZLqLRZON82:N1BpVPsyuYzhurSvd9kBLTON82

Score

10^/10

privateloader evasion loader spyware stealer themida trojan vmprotect

Malware Config

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

VMProtect packed file 8 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
behavioral1/memory/1516-55-0x00000000001B0000-0x0000000000B89000-memory.dmp	vmprotect
behavioral1/memory/1516-56-0x00000000001B0000-0x0000000000B89000-memory.dmp	vmprotect
behavioral1/memory/1516-57-0x00000000001B0000-0x0000000000B89000-memory.dmp	vmprotect
behavioral1/memory/1516-59-0x00000000001B0000-0x0000000000B89000-memory.dmp	vmprotect
behavioral1/memory/1516-60-0x00000000001B0000-0x0000000000B89000-memory.dmp	vmprotect
behavioral1/memory/1516-61-0x00000000001B0000-0x0000000000B89000-memory.dmp	vmprotect
behavioral1/memory/1516-62-0x00000000001B0000-0x0000000000B89000-memory.dmp	vmprotect
behavioral1/memory/1516-63-0x00000000001B0000-0x0000000000B89000-memory.dmp	vmprotect

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

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

install.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\Geo\Nation install.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\Geo\Nation	install.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1516-55-0x00000000001B0000-0x0000000000B89000-memory.dmp	themida
behavioral1/memory/1516-56-0x00000000001B0000-0x0000000000B89000-memory.dmp	themida
behavioral1/memory/1516-57-0x00000000001B0000-0x0000000000B89000-memory.dmp	themida
behavioral1/memory/1516-59-0x00000000001B0000-0x0000000000B89000-memory.dmp	themida
behavioral1/memory/1516-60-0x00000000001B0000-0x0000000000B89000-memory.dmp	themida
behavioral1/memory/1516-61-0x00000000001B0000-0x0000000000B89000-memory.dmp	themida
behavioral1/memory/1516-62-0x00000000001B0000-0x0000000000B89000-memory.dmp	themida
behavioral1/memory/1516-63-0x00000000001B0000-0x0000000000B89000-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

9 ipinfo.io
10 ipinfo.io

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

flow	ioc
9	ipinfo.io
10	ipinfo.io

Drops file in System32 directory 4 IoCs

Processes:

install.exe

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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

install.exe

pid process

1516 install.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

install.exe

pid process

1516 install.exe
1516 install.exe

pid	process
1516	install.exe

pid	process
1516	install.exe
1516	install.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 computer location settings
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1516

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

3

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1516-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1516-55-0x00000000001B0000-0x0000000000B89000-memory.dmp

Filesize
9.8MB

Download
memory/1516-56-0x00000000001B0000-0x0000000000B89000-memory.dmp

Filesize
9.8MB

Download
memory/1516-58-0x0000000077560000-0x00000000776E0000-memory.dmp

Filesize
1.5MB

Download
memory/1516-57-0x00000000001B0000-0x0000000000B89000-memory.dmp

Filesize
9.8MB

Download
memory/1516-59-0x00000000001B0000-0x0000000000B89000-memory.dmp

Filesize
9.8MB

Download
memory/1516-60-0x00000000001B0000-0x0000000000B89000-memory.dmp

Filesize
9.8MB

Download
memory/1516-61-0x00000000001B0000-0x0000000000B89000-memory.dmp

Filesize
9.8MB

Download
memory/1516-62-0x00000000001B0000-0x0000000000B89000-memory.dmp

Filesize
9.8MB

Download
memory/1516-63-0x00000000001B0000-0x0000000000B89000-memory.dmp

Filesize
9.8MB

Download
memory/1516-64-0x0000000077560000-0x00000000776E0000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads