3a39454c9059db4f64e6ddb92a89383f8429fb832a9118ce0d1e9cd93a87a517

Analysis

max time kernel
43s
max time network
48s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
13/11/2023, 17:47

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General

Target

RUT_V3.exe
Size

10.3MB
MD5

a961d772dd3cf64aac768de86e0c346b
SHA1

5b842b850cf20c6589ff0a468be93ffb0deeb5a0
SHA256

3a39454c9059db4f64e6ddb92a89383f8429fb832a9118ce0d1e9cd93a87a517
SHA512

77da1ab2e393a68d0063b601c70c941ba30ee54f58cf435a30e277d16067921e4faad46326823606444751bfd8cea7bd2c5d078d7e313d1a0850ba5cb76cc15f
SSDEEP

196608:XwhlrIeTPA0+jmdGoxGNTF4bIl8DN6skBGtshCD7rupK4wfvK0:XI96DOGWAmb+8DVEh22pK1B

Score

9^/10

discovery evasion 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	RUT_V3.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	RUT_V3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	RUT_V3.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	RUT_V3.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4520	RUT_V3.exe
4520	RUT_V3.exe
4520	RUT_V3.exe
4520	RUT_V3.exe
4520	RUT_V3.exe
4520	RUT_V3.exe
4520	RUT_V3.exe
4520	RUT_V3.exe
4520	RUT_V3.exe
4520	RUT_V3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSystemEnvironmentPrivilege	4520	RUT_V3.exe
Token: SeLoadDriverPrivilege	4520	RUT_V3.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 2376	4520	RUT_V3.exe	97
PID 4520 wrote to memory of 2376	4520	RUT_V3.exe	97
PID 4520 wrote to memory of 2376	4520	RUT_V3.exe	97
PID 4520 wrote to memory of 2612	4520	RUT_V3.exe	98
PID 4520 wrote to memory of 2612	4520	RUT_V3.exe	98
PID 4520 wrote to memory of 2612	4520	RUT_V3.exe	98

C:\Users\Admin\AppData\Local\Temp\RUT_V3.exe
"C:\Users\Admin\AppData\Local\Temp\RUT_V3.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  PID:2376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  PID:2612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4520-0-0x00007FF642220000-0x00007FF643CC5000-memory.dmp

Filesize
26.6MB

Download
memory/4520-1-0x00007FF642220000-0x00007FF643CC5000-memory.dmp

Filesize
26.6MB

Download
memory/4520-2-0x00007FF642220000-0x00007FF643CC5000-memory.dmp

Filesize
26.6MB

Download
memory/4520-3-0x00007FF642220000-0x00007FF643CC5000-memory.dmp

Filesize
26.6MB

Download
memory/4520-4-0x00007FF642220000-0x00007FF643CC5000-memory.dmp

Filesize
26.6MB

Download
memory/4520-5-0x00007FF642220000-0x00007FF643CC5000-memory.dmp

Filesize
26.6MB

Download
memory/4520-6-0x00007FF642220000-0x00007FF643CC5000-memory.dmp

Filesize
26.6MB

Download
memory/4520-7-0x0000024A6B150000-0x0000024A6B151000-memory.dmp

Filesize
4KB

Download
memory/4520-21-0x00007FF642220000-0x00007FF643CC5000-memory.dmp

Filesize
26.6MB

Download
memory/4520-208-0x0000024A6B150000-0x0000024A6B151000-memory.dmp

Filesize
4KB

Download
memory/4520-209-0x0000024A6CCB0000-0x0000024A6CD27000-memory.dmp

Filesize
476KB

Download
memory/4520-210-0x0000024A6D650000-0x0000024A6D6C7000-memory.dmp

Filesize
476KB

Download