f8b127e4798a7da51094c812b4bba9d2bd489d61f97094c5d72839cd6fee9dfa | Triage

Sharing

General

Target

f8b127e4798a7da51094c812b4bba9d2bd489d61f97094c5d72839cd6fee9dfa
Size

3.6MB
Sample

240919-ehpr6azdkh
MD5

aec3db72f515f7b1eb36fd783803e116
SHA1

72a411a45c5184106886f7fff3af058c874b66ec
SHA256

f8b127e4798a7da51094c812b4bba9d2bd489d61f97094c5d72839cd6fee9dfa
SHA512

fc9e53b1601a346c647a6e7dabe42326479e80a841b9ebbf222dd9180a26b6840318a748abd1f5b02b966310a4b1b8f2b9d71b9fbd5b076987cedd4b03deed05
SSDEEP

98304:CMT50Gx83GG4tBN8kqbEVZeMJkrj/xVmAllwTA3Ttj:D10D3GTnTqbEVZhJq/xVbsAT9

Score

9^/10

bootkit discovery evasion persistence trojan

Malware Config

Targets

- Target
  
  f8b127e4798a7da51094c812b4bba9d2bd489d61f97094c5d72839cd6fee9dfa
- Size
  
  3.6MB
- MD5
  
  aec3db72f515f7b1eb36fd783803e116
- SHA1
  
  72a411a45c5184106886f7fff3af058c874b66ec
- SHA256
  
  f8b127e4798a7da51094c812b4bba9d2bd489d61f97094c5d72839cd6fee9dfa
- SHA512
  
  fc9e53b1601a346c647a6e7dabe42326479e80a841b9ebbf222dd9180a26b6840318a748abd1f5b02b966310a4b1b8f2b9d71b9fbd5b076987cedd4b03deed05
- SSDEEP
  
  98304:CMT50Gx83GG4tBN8kqbEVZeMJkrj/xVmAllwTA3Ttj:D10D3GTnTqbEVZhJq/xVbsAT9
Score

9^/10

bootkit discovery evasion persistence trojan
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
  evasion
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Checks whether UAC is enabled
  evasion trojan
- Writes to the Master Boot Record (MBR)
  Bootkits write to the MBR to gain persistence at a level below the operating system.
  bootkit persistence
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

Bootkit

Privilege Escalation

Defense Evasion

Pre-OS Boot

Bootkit

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

System Location Discovery

System Language Discovery

Virtualization/Sandbox Evasion

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

bootkitdiscoveryevasionpersistencetrojan

behavioral2

bootkitdiscoveryevasionpersistencetrojan