a5eacdb3e2763a06f85ad4066d82f1c34a6a8abe80dfd826647926f0e8f19124

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-06-2024 16:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Undetek/Undetek.exe
Size

5.3MB
MD5

bee9c1a3bcc72334970236790dc749ec
SHA1

98ecbaaa53622b0b931febd83b98f174298a7481
SHA256

5649811caa051058a23417555334683348438adbebd4ff663bc0dcb49f25df5e
SHA512

eafdbe2484c254b4cb4e33fbbfd09de291ea2ce38e8faf5c92f5e8257d890faf5e2f739b9a2f43a5751ceced056bcdca769c6049e131989f2d70635cbaf1e4d5
SSDEEP

98304:bxbWJlNLYzbmx8ffY+4fQ6HKJevY7EHd8+evl1WygmtSXqsdcdIE0Nb:sZLCblHYnQqKcgYHd8+eHWqtEPL5

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:

Undetek.exe

description ioc process

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

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

Undetek.exe

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

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1984-0-0x000000013F740000-0x00000001405A4000-memory.dmp	themida
behavioral1/memory/1984-3-0x000000013F740000-0x00000001405A4000-memory.dmp	themida
behavioral1/memory/1984-2-0x000000013F740000-0x00000001405A4000-memory.dmp	themida
behavioral1/memory/1984-4-0x000000013F740000-0x00000001405A4000-memory.dmp	themida
behavioral1/memory/1984-5-0x000000013F740000-0x00000001405A4000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Undetek.exe

description ioc process

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

Processes:

Undetek.exe

pid process

1984 Undetek.exe

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

pid	process
1984	Undetek.exe

C:\Users\Admin\AppData\Local\Temp\Undetek\Undetek.exe
"C:\Users\Admin\AppData\Local\Temp\Undetek\Undetek.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
PID:1984

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

Loading Replay Monitor...

Downloads

memory/1984-0-0x000000013F740000-0x00000001405A4000-memory.dmp

Filesize
14.4MB

Download
memory/1984-1-0x0000000076E30000-0x0000000076E32000-memory.dmp

Filesize
8KB

Download
memory/1984-3-0x000000013F740000-0x00000001405A4000-memory.dmp

Filesize
14.4MB

Download
memory/1984-2-0x000000013F740000-0x00000001405A4000-memory.dmp

Filesize
14.4MB

Download
memory/1984-4-0x000000013F740000-0x00000001405A4000-memory.dmp

Filesize
14.4MB

Download
memory/1984-5-0x000000013F740000-0x00000001405A4000-memory.dmp

Filesize
14.4MB

Download