953a78c09d4aa7bec811695ab607ae82f3f304273fc53202192a97083cb606b5

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 16:42

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General

Target

SolaraBETA3/XcHvYYrNa.dll
Size

5.2MB
MD5

85b0dcb64053e35280477d88e1e05505
SHA1

70ebc4da4ac422bb47c1c49114d935d01848436b
SHA256

0c11716983653fef7d0f403c31429d9730c3c182eecc2e518ab98b4de6dd6730
SHA512

2f79e49f093fd0aaef79cbda75924ddec34a8172182a5cb7ddcde5227897f46e9e55dccf310779918afd1144f2af9a003d58939b5e631ecda147c81b95ad4d64
SSDEEP

98304:Hjq4IKpMF9j28xRr3gylwOjA3iquS4+RUk2o9/C/omTI:Dq7sMTj2w0yGyGKzmC/om

Score

9^/10

evasion themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rundll32.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:

rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rundll32.exe

Themida packer 7 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral25/memory/3068-0-0x0000000180000000-0x0000000180C2E000-memory.dmp	themida
behavioral25/memory/3068-1-0x0000000180000000-0x0000000180C2E000-memory.dmp	themida
behavioral25/memory/3068-3-0x0000000180000000-0x0000000180C2E000-memory.dmp	themida
behavioral25/memory/3068-2-0x0000000180000000-0x0000000180C2E000-memory.dmp	themida
behavioral25/memory/3068-5-0x0000000180000000-0x0000000180C2E000-memory.dmp	themida
behavioral25/memory/3068-6-0x0000000180000000-0x0000000180C2E000-memory.dmp	themida
behavioral25/memory/3068-7-0x0000000180000000-0x0000000180C2E000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

3068 rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

pid	process
3068	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SolaraBETA3\XcHvYYrNa.dll,#1
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:3068

MITRE ATT&CK Matrix ATT&CK v13

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

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/3068-0-0x0000000180000000-0x0000000180C2E000-memory.dmp

Filesize
12.2MB

Download
memory/3068-1-0x0000000180000000-0x0000000180C2E000-memory.dmp

Filesize
12.2MB

Download
memory/3068-3-0x0000000180000000-0x0000000180C2E000-memory.dmp

Filesize
12.2MB

Download
memory/3068-2-0x0000000180000000-0x0000000180C2E000-memory.dmp

Filesize
12.2MB

Download
memory/3068-4-0x0000000077A80000-0x0000000077A82000-memory.dmp

Filesize
8KB

Download
memory/3068-5-0x0000000180000000-0x0000000180C2E000-memory.dmp

Filesize
12.2MB

Download
memory/3068-6-0x0000000180000000-0x0000000180C2E000-memory.dmp

Filesize
12.2MB

Download
memory/3068-7-0x0000000180000000-0x0000000180C2E000-memory.dmp

Filesize
12.2MB

Download