73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2

Analysis

max time kernel
134s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 21:14

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General

Target

73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe
Size

3.8MB
MD5

57b8ed83826856318137c44fb1240528
SHA1

679ac8ba7651908d6b9abd37624829d264d63d3d
SHA256

73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2
SHA512

397bb732162bb65d0c8b6ae267389eb7df4ba8bacedc84eebf709413f43e117aeccd10095152848502248953b86b244ed12ba5a7ccda3e3a41c002e5656c8f77
SSDEEP

98304:DPlBE1PNDpE44FcH8RNy2lqBehp4t/d6ZCRMi3ivzz:ZqP/yFcH8Ro2W6KVfyvzz

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:

73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.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:

73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

Themida packer 9 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/1924-2-0x0000000000250000-0x0000000000B87000-memory.dmp	themida
behavioral2/memory/1924-4-0x0000000000250000-0x0000000000B87000-memory.dmp	themida
behavioral2/memory/1924-7-0x0000000000250000-0x0000000000B87000-memory.dmp	themida
behavioral2/memory/1924-8-0x0000000000250000-0x0000000000B87000-memory.dmp	themida
behavioral2/memory/1924-6-0x0000000000250000-0x0000000000B87000-memory.dmp	themida
behavioral2/memory/1924-5-0x0000000000250000-0x0000000000B87000-memory.dmp	themida
behavioral2/memory/1924-3-0x0000000000250000-0x0000000000B87000-memory.dmp	themida
behavioral2/memory/1924-1-0x0000000000250000-0x0000000000B87000-memory.dmp	themida
behavioral2/memory/1924-10-0x0000000000250000-0x0000000000B87000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

pid process

1924 73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3128 1924 WerFault.exe 73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

pid	pid_target	process	target process
3128	1924	WerFault.exe	73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

pid	process
1924	73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe
1924	73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe

C:\Users\Admin\AppData\Local\Temp\73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.exe
"C:\Users\Admin\AppData\Local\Temp\73af0b9b7f307488445db0ec14597fbe91467c1fdd973a39c59c1e2bc7809de2.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
PID:1924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 596
  2⤵
  - Program crash
  PID:3128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1924 -ip 1924
1⤵
PID:3624

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/1924-0-0x0000000076FB4000-0x0000000076FB6000-memory.dmp

Filesize
8KB

Download
memory/1924-2-0x0000000000250000-0x0000000000B87000-memory.dmp

Filesize
9.2MB

Download
memory/1924-4-0x0000000000250000-0x0000000000B87000-memory.dmp

Filesize
9.2MB

Download
memory/1924-7-0x0000000000250000-0x0000000000B87000-memory.dmp

Filesize
9.2MB

Download
memory/1924-9-0x0000000003410000-0x0000000003411000-memory.dmp

Filesize
4KB

Download
memory/1924-8-0x0000000000250000-0x0000000000B87000-memory.dmp

Filesize
9.2MB

Download
memory/1924-6-0x0000000000250000-0x0000000000B87000-memory.dmp

Filesize
9.2MB

Download
memory/1924-5-0x0000000000250000-0x0000000000B87000-memory.dmp

Filesize
9.2MB

Download
memory/1924-3-0x0000000000250000-0x0000000000B87000-memory.dmp

Filesize
9.2MB

Download
memory/1924-1-0x0000000000250000-0x0000000000B87000-memory.dmp

Filesize
9.2MB

Download
memory/1924-10-0x0000000000250000-0x0000000000B87000-memory.dmp

Filesize
9.2MB

Download