81e8aa34984a29b9f5e1e017fcdc76c06a8da2c26edbe4e45ad4a088aac5b327 | Triage

Sharing

General

Target

81e8aa34984a29b9f5e1e017fcdc76c06a8da2c26edbe4e45ad4a088aac5b327
Size

4.1MB
Sample

240517-a2skyahf64
MD5

6188d5ecaa97c6835ae4d613b354c796
SHA1

38292568f78035f6514eb4ec32fcf71226904393
SHA256

81e8aa34984a29b9f5e1e017fcdc76c06a8da2c26edbe4e45ad4a088aac5b327
SHA512

fae071f40248873d4170054f5028e854ea67b8cc7e310fbd4102a347ba7fa38b9b59c79c780d5d2db65abbf1518f60c5ef056972488bfe92f6b89cb4fa57f897
SSDEEP

98304:KEc1bNmfyMj4ryXdLdiXx+Rton9QTj53C8f93S8b+m9axAm:KhNmaMj4rOwxwton0jNeGmA

Score

9^/10

evasion trojan

Malware Config

Targets

- Target
  
  81e8aa34984a29b9f5e1e017fcdc76c06a8da2c26edbe4e45ad4a088aac5b327
- Size
  
  4.1MB
- MD5
  
  6188d5ecaa97c6835ae4d613b354c796
- SHA1
  
  38292568f78035f6514eb4ec32fcf71226904393
- SHA256
  
  81e8aa34984a29b9f5e1e017fcdc76c06a8da2c26edbe4e45ad4a088aac5b327
- SHA512
  
  fae071f40248873d4170054f5028e854ea67b8cc7e310fbd4102a347ba7fa38b9b59c79c780d5d2db65abbf1518f60c5ef056972488bfe92f6b89cb4fa57f897
- SSDEEP
  
  98304:KEc1bNmfyMj4ryXdLdiXx+Rton9QTj53C8f93S8b+m9axAm:KhNmaMj4rOwxwton0jNeGmA
Score

9^/10

evasion 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.
- Loads dropped DLL
- Checks whether UAC is enabled
  evasion trojan
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

behavioral2