General

  • Target

    2bd8953ea1818f374419c31d125e124817f0c49adf5b4a373ac2907629a9ea80

  • Size

    210KB

  • Sample

    220613-2y3qaafdg4

  • MD5

    8475dd0e11e700df0562be93b251feac

  • SHA1

    e8faac9dcadf847e7131e20a17e42bf61334661a

  • SHA256

    2bd8953ea1818f374419c31d125e124817f0c49adf5b4a373ac2907629a9ea80

  • SHA512

    5d9fbd06ad57e3f59999602cd0cbc831979fabad8bf8ea70c33c100f3bfe5d43e97b1df168dc087d9298413b8b26a0e77a812e27abc65b39c039738bca2d0ba9

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      2bd8953ea1818f374419c31d125e124817f0c49adf5b4a373ac2907629a9ea80

    • Size

      210KB

    • MD5

      8475dd0e11e700df0562be93b251feac

    • SHA1

      e8faac9dcadf847e7131e20a17e42bf61334661a

    • SHA256

      2bd8953ea1818f374419c31d125e124817f0c49adf5b4a373ac2907629a9ea80

    • SHA512

      5d9fbd06ad57e3f59999602cd0cbc831979fabad8bf8ea70c33c100f3bfe5d43e97b1df168dc087d9298413b8b26a0e77a812e27abc65b39c039738bca2d0ba9

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Windows security bypass

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner Payload

    • Creates new service(s)

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Deletes itself

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Discovery

System Information Discovery

1
T1082

Tasks