0c5fd6cbdbdd456d02395bda9ab44725d6cf2dc6660c66724c86e87a28f1639d

Analysis

max time kernel
150s
max time network
127s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13-02-2024 14:24

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General

Target

file.exe
Size

3.1MB
MD5

cae672ef9307c3d155014819b77063c4
SHA1

6f3fbd8eb2b3af226ae7d70245c9a5137ccd0582
SHA256

0c5fd6cbdbdd456d02395bda9ab44725d6cf2dc6660c66724c86e87a28f1639d
SHA512

1c8c6bb9a4acc7465fb3e7eba9a30b1f9478e5f9416587e218d5e9bc98389310f81210242549cfa991fed3b7b8a31058a646e5a5f9a0e9507cdfd70c8d26ee1d
SSDEEP

49152:9PvsG1OiyH6Rks0pVWwsY4m2n3nm7nE+2z/tgZnVQ2a0253ZyyORi/Us:xEsQH6is0pVqJnAEjgZnVQ3Zyy8s5

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	file.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	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	file.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2356-0-0x00000000009B0000-0x00000000012CE000-memory.dmp	themida
behavioral1/memory/2356-2-0x00000000009B0000-0x00000000012CE000-memory.dmp	themida
behavioral1/memory/2356-3-0x00000000009B0000-0x00000000012CE000-memory.dmp	themida
behavioral1/memory/2356-4-0x00000000009B0000-0x00000000012CE000-memory.dmp	themida
behavioral1/memory/2356-5-0x00000000009B0000-0x00000000012CE000-memory.dmp	themida
behavioral1/memory/2356-6-0x00000000009B0000-0x00000000012CE000-memory.dmp	themida
behavioral1/memory/2356-7-0x00000000009B0000-0x00000000012CE000-memory.dmp	themida
behavioral1/memory/2356-9-0x00000000009B0000-0x00000000012CE000-memory.dmp	themida

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	file.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2356	file.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2056	2356	WerFault.exe	27

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2056	2356	file.exe	28
PID 2356 wrote to memory of 2056	2356	file.exe	28
PID 2356 wrote to memory of 2056	2356	file.exe	28
PID 2356 wrote to memory of 2056	2356	file.exe	28

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.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 use of WriteProcessMemory
PID:2356
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 132
  2⤵
  - Program crash
  PID:2056

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

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Downloads

memory/2356-0-0x00000000009B0000-0x00000000012CE000-memory.dmp

Filesize
9.1MB

Download
memory/2356-1-0x0000000077D90000-0x0000000077D92000-memory.dmp

Filesize
8KB

Download
memory/2356-2-0x00000000009B0000-0x00000000012CE000-memory.dmp

Filesize
9.1MB

Download
memory/2356-3-0x00000000009B0000-0x00000000012CE000-memory.dmp

Filesize
9.1MB

Download
memory/2356-4-0x00000000009B0000-0x00000000012CE000-memory.dmp

Filesize
9.1MB

Download
memory/2356-5-0x00000000009B0000-0x00000000012CE000-memory.dmp

Filesize
9.1MB

Download
memory/2356-6-0x00000000009B0000-0x00000000012CE000-memory.dmp

Filesize
9.1MB

Download
memory/2356-7-0x00000000009B0000-0x00000000012CE000-memory.dmp

Filesize
9.1MB

Download
memory/2356-8-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2356-9-0x00000000009B0000-0x00000000012CE000-memory.dmp

Filesize
9.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads