privateloader | 1d7c6b200ac9d76d30f825ecbdc9be885ce7698cef93c39f1fa2753eead4389b

Analysis

max time kernel
207s
max time network
218s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2022 02:16

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General

Target

File.exe
Size

399.1MB
MD5

da68a47812b9fc6d8f58bc98503c55f9
SHA1

22f68cb818335552220eea6a38498f4688c7ea0a
SHA256

1d7c6b200ac9d76d30f825ecbdc9be885ce7698cef93c39f1fa2753eead4389b
SHA512

ee8535fa38381942124851abc10ebbef9e29fcee7f65b6709c21348cc4c7bc88ae71adf2ef5715796a5cdc02e62809fc67565ce72b112373033008bfb73ea713

Score

10^/10

privateloader evasion loader themida trojan

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:

File.exe

description ioc process

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

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

File.exe

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

Themida packer 7 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/4316-130-0x0000000000300000-0x0000000000AE0000-memory.dmp	themida
behavioral2/memory/4316-131-0x0000000000300000-0x0000000000AE0000-memory.dmp	themida
behavioral2/memory/4316-132-0x0000000000300000-0x0000000000AE0000-memory.dmp	themida
behavioral2/memory/4316-133-0x0000000000300000-0x0000000000AE0000-memory.dmp	themida
behavioral2/memory/4316-134-0x0000000000300000-0x0000000000AE0000-memory.dmp	themida
behavioral2/memory/4316-136-0x0000000000300000-0x0000000000AE0000-memory.dmp	themida
behavioral2/memory/4316-138-0x0000000000300000-0x0000000000AE0000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

File.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA File.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

File.exe

pid process

4316 File.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3780 4416 WerFault.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

File.exe

pid process

4316 File.exe
4316 File.exe

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

pid	process
4316	File.exe

pid	pid_target	process	target process
3780	4416	WerFault.exe

pid	process
4316	File.exe
4316	File.exe

C:\Users\Admin\AppData\Local\Temp\File.exe
"C:\Users\Admin\AppData\Local\Temp\File.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 behavior: EnumeratesProcesses
PID:4316

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 444 -p 4416 -ip 4416
1⤵
PID:676

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 4416 -s 836
1⤵
- Program crash
PID:3780

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4316-130-0x0000000000300000-0x0000000000AE0000-memory.dmp

Filesize
7.9MB

Download
memory/4316-131-0x0000000000300000-0x0000000000AE0000-memory.dmp

Filesize
7.9MB

Download
memory/4316-132-0x0000000000300000-0x0000000000AE0000-memory.dmp

Filesize
7.9MB

Download
memory/4316-133-0x0000000000300000-0x0000000000AE0000-memory.dmp

Filesize
7.9MB

Download
memory/4316-134-0x0000000000300000-0x0000000000AE0000-memory.dmp

Filesize
7.9MB

Download
memory/4316-135-0x0000000076F60000-0x0000000077103000-memory.dmp

Filesize
1.6MB

Download
memory/4316-136-0x0000000000300000-0x0000000000AE0000-memory.dmp

Filesize
7.9MB

Download
memory/4316-137-0x0000000076F60000-0x0000000077103000-memory.dmp

Filesize
1.6MB

Download
memory/4316-138-0x0000000000300000-0x0000000000AE0000-memory.dmp

Filesize
7.9MB

Download
memory/4316-139-0x0000000076F60000-0x0000000077103000-memory.dmp

Filesize
1.6MB

Download