General

  • Target

    12a53ba8d08ffe30124d3017d58fdd3f7a362833ebaeea685545d9dace34186a

  • Size

    771KB

  • Sample

    240522-crex7shd2y

  • MD5

    737f9a0bd803b3f5499e42304542eb30

  • SHA1

    89bc783a3c22559e1ce4aabe9d16cf2dbacc67b3

  • SHA256

    12a53ba8d08ffe30124d3017d58fdd3f7a362833ebaeea685545d9dace34186a

  • SHA512

    b431a0cc2843dfa055dc7c5cae67d98064fb5829166cf285520c1aa6b1783f6730d697570c6d6428033b9def4bfdcf9071f09ccfbec6b2fd7845e6faacbe4ec0

  • SSDEEP

    12288:U761vvrXBDZZmDmSh7SHSjX4z4ZV4kzI6OcGfAkx4tOF6j+Z:U7qvrXo7ZNX4z4YbcGfAkx4tNE

Malware Config

Targets

    • Target

      12a53ba8d08ffe30124d3017d58fdd3f7a362833ebaeea685545d9dace34186a

    • Size

      771KB

    • MD5

      737f9a0bd803b3f5499e42304542eb30

    • SHA1

      89bc783a3c22559e1ce4aabe9d16cf2dbacc67b3

    • SHA256

      12a53ba8d08ffe30124d3017d58fdd3f7a362833ebaeea685545d9dace34186a

    • SHA512

      b431a0cc2843dfa055dc7c5cae67d98064fb5829166cf285520c1aa6b1783f6730d697570c6d6428033b9def4bfdcf9071f09ccfbec6b2fd7845e6faacbe4ec0

    • SSDEEP

      12288:U761vvrXBDZZmDmSh7SHSjX4z4ZV4kzI6OcGfAkx4tOF6j+Z:U7qvrXo7ZNX4z4YbcGfAkx4tNE

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Installed Components in the registry

    • Modifies Windows Firewall

    • Sets file execution options in registry

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Registers COM server for autorun

    • Adds Run key to start application

    • Blocklisted process makes network request

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

4
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

4
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Modify Registry

6
T1112

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Discovery

Query Registry

6
T1012

System Information Discovery

6
T1082

Peripheral Device Discovery

2
T1120

Tasks