fd7329ac9e8111fd954f2bb8abf49d684265a5de8325b7e7e4ca640ce9f8eadd

Analysis

max time kernel
41s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07-02-2023 00:34

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General

Target

4213ds/u3yUAGt07i.exe
Size

12.9MB
MD5

7791d25acbf4b6e03392aad4cbaf93a0
SHA1

afd50ed24e2dcb8ffd128c22e8e526870e065a04
SHA256

8e46242657a4a84d31840341fb023d4c08b053e0f4329e3d837b1cb5d22e1708
SHA512

72479d19d91e7410dc80d77314243f2b087ff02abd2224bd28112e79eb75e94c31d1f0382ceefe1be911be392e171f0b59b303b8eb76aefb4eadfb769a5c206c
SSDEEP

196608:/ntHA/J/KgW9znu4MUwN0OdER9P9zjBgOiPp97rMAfZ+WL9kdAe9XWc:/tSJCZ9znMJN0OdUnHBgZHr54WLedAWN

Score

9^/10

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

Processes:

u3yUAGt07i.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ u3yUAGt07i.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	u3yUAGt07i.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:

u3yUAGt07i.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	u3yUAGt07i.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	u3yUAGt07i.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

u3yUAGt07i.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA u3yUAGt07i.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

u3yUAGt07i.exe

pid process

540 u3yUAGt07i.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

u3yUAGt07i.exe

pid process

540 u3yUAGt07i.exe
540 u3yUAGt07i.exe
540 u3yUAGt07i.exe
540 u3yUAGt07i.exe
540 u3yUAGt07i.exe
540 u3yUAGt07i.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

u3yUAGt07i.exe

pid process

540 u3yUAGt07i.exe
540 u3yUAGt07i.exe
540 u3yUAGt07i.exe
540 u3yUAGt07i.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	u3yUAGt07i.exe

pid	process
540	u3yUAGt07i.exe

pid	process
540	u3yUAGt07i.exe
540	u3yUAGt07i.exe
540	u3yUAGt07i.exe
540	u3yUAGt07i.exe
540	u3yUAGt07i.exe
540	u3yUAGt07i.exe

pid	process
540	u3yUAGt07i.exe
540	u3yUAGt07i.exe
540	u3yUAGt07i.exe
540	u3yUAGt07i.exe

C:\Users\Admin\AppData\Local\Temp\4213ds\u3yUAGt07i.exe
"C:\Users\Admin\AppData\Local\Temp\4213ds\u3yUAGt07i.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
- Suspicious use of SetWindowsHookEx
PID:540

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/540-54-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/540-55-0x0000000000F60000-0x0000000002DBB000-memory.dmp

Filesize
30.4MB

Download
memory/540-57-0x0000000077BE0000-0x0000000077D60000-memory.dmp

Filesize
1.5MB

Download
memory/540-56-0x0000000000F60000-0x0000000002DBB000-memory.dmp

Filesize
30.4MB

Download
memory/540-58-0x0000000000F60000-0x0000000002DBB000-memory.dmp

Filesize
30.4MB

Download
memory/540-59-0x0000000000F60000-0x0000000002DBB000-memory.dmp

Filesize
30.4MB

Download
memory/540-60-0x0000000000F60000-0x0000000002DBB000-memory.dmp

Filesize
30.4MB

Download
memory/540-61-0x0000000000F60000-0x0000000002DBB000-memory.dmp

Filesize
30.4MB

Download
memory/540-62-0x0000000000F60000-0x0000000002DBB000-memory.dmp

Filesize
30.4MB

Download
memory/540-63-0x0000000000F60000-0x0000000002DBB000-memory.dmp

Filesize
30.4MB

Download
memory/540-64-0x0000000077BE0000-0x0000000077D60000-memory.dmp

Filesize
1.5MB

Download