privateloader | 64d8cc20d5a9f8fbcf68f2b2242ac8346a82e6b72015cc0633bbad2833712036

Analysis

max time kernel
146s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2022 21:36

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General

Target

EFB17623F04C4018000E57DA2874F594.exe
Size

5.8MB
MD5

efb17623f04c4018000e57da2874f594
SHA1

5061791d84c91e9a8e818e351729f3bf780eb7ef
SHA256

64d8cc20d5a9f8fbcf68f2b2242ac8346a82e6b72015cc0633bbad2833712036
SHA512

7abe0bb16320df8347901cf6333b1f2c23af047e22a942a2f9f9957e25f6a1d346d3b1beaa9cafde2f6e089eed35b0e72fc82f15ba97307154c2890623d102e1

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:

EFB17623F04C4018000E57DA2874F594.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ EFB17623F04C4018000E57DA2874F594.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	EFB17623F04C4018000E57DA2874F594.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:

EFB17623F04C4018000E57DA2874F594.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	EFB17623F04C4018000E57DA2874F594.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	EFB17623F04C4018000E57DA2874F594.exe

Themida packer 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/868-132-0x0000000000CF0000-0x0000000001527000-memory.dmp	themida
behavioral2/memory/868-131-0x0000000000CF0000-0x0000000001527000-memory.dmp	themida
behavioral2/memory/868-134-0x0000000000CF0000-0x0000000001527000-memory.dmp	themida
behavioral2/memory/868-135-0x0000000000CF0000-0x0000000001527000-memory.dmp	themida
behavioral2/memory/868-136-0x0000000000CF0000-0x0000000001527000-memory.dmp	themida
behavioral2/memory/868-138-0x0000000000CF0000-0x0000000001527000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

EFB17623F04C4018000E57DA2874F594.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	EFB17623F04C4018000E57DA2874F594.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

EFB17623F04C4018000E57DA2874F594.exe

pid process

868 EFB17623F04C4018000E57DA2874F594.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

EFB17623F04C4018000E57DA2874F594.exe

pid process

868 EFB17623F04C4018000E57DA2874F594.exe
868 EFB17623F04C4018000E57DA2874F594.exe

pid	process
868	EFB17623F04C4018000E57DA2874F594.exe

pid	process
868	EFB17623F04C4018000E57DA2874F594.exe
868	EFB17623F04C4018000E57DA2874F594.exe

C:\Users\Admin\AppData\Local\Temp\EFB17623F04C4018000E57DA2874F594.exe
"C:\Users\Admin\AppData\Local\Temp\EFB17623F04C4018000E57DA2874F594.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:868

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

Web Service

T1102

Impact

Replay Monitor

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Downloads

memory/868-132-0x0000000000CF0000-0x0000000001527000-memory.dmp

Filesize
8.2MB

Download
memory/868-131-0x0000000000CF0000-0x0000000001527000-memory.dmp

Filesize
8.2MB

Download
memory/868-133-0x0000000077A60000-0x0000000077C03000-memory.dmp

Filesize
1.6MB

Download
memory/868-134-0x0000000000CF0000-0x0000000001527000-memory.dmp

Filesize
8.2MB

Download
memory/868-135-0x0000000000CF0000-0x0000000001527000-memory.dmp

Filesize
8.2MB

Download
memory/868-136-0x0000000000CF0000-0x0000000001527000-memory.dmp

Filesize
8.2MB

Download
memory/868-137-0x0000000077A60000-0x0000000077C03000-memory.dmp

Filesize
1.6MB

Download
memory/868-138-0x0000000000CF0000-0x0000000001527000-memory.dmp

Filesize
8.2MB

Download
memory/868-139-0x0000000077A60000-0x0000000077C03000-memory.dmp

Filesize
1.6MB

Download