Overview

overview

10

Static

static

bb56a44a1a...1b.exe

windows7_x64

10

bb56a44a1a...1b.exe

windows10_x64

10

Resubmissions

19-01-2021 15:57

210119-e1qj4gfncn 10

11-11-2020 11:40

201111-m3kagztelj 10

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General

  • Target

    bb56a44a1aecdb49ea4655e4fb4f5d62b6f44938457b704b6154256a3d387b1b

  • Size

    10.5MB

  • Sample

    210119-e1qj4gfncn

  • MD5

    b2e1156c89468ab56a6ed5376b5cbce2

  • SHA1

    a844317f9bdf6b5024225e80e5402fd0a6a086a0

  • SHA256

    bb56a44a1aecdb49ea4655e4fb4f5d62b6f44938457b704b6154256a3d387b1b

  • SHA512

    9f51a6f82bafddbd23b1c3e0af0c910ea40b98536ca07e60d7b5f1005485c37c3e7344ae4f4eb4bcf8fb73fa9b8b96cb1ea69c817c71ecd9c7aec62ed3acf21f

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Targets

    • Target

      bb56a44a1aecdb49ea4655e4fb4f5d62b6f44938457b704b6154256a3d387b1b

    • Size

      10.5MB

    • MD5

      b2e1156c89468ab56a6ed5376b5cbce2

    • SHA1

      a844317f9bdf6b5024225e80e5402fd0a6a086a0

    • SHA256

      bb56a44a1aecdb49ea4655e4fb4f5d62b6f44938457b704b6154256a3d387b1b

    • SHA512

      9f51a6f82bafddbd23b1c3e0af0c910ea40b98536ca07e60d7b5f1005485c37c3e7344ae4f4eb4bcf8fb73fa9b8b96cb1ea69c817c71ecd9c7aec62ed3acf21f

    Score
    10/10
    tofseexmrigevasionminerpersistencetrojan

    • Tofsee

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

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • xmrig

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

      minerxmrig

    • XMRig Miner Payload

      miner

    • Creates new service(s)

      persistence

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Sets service image path in registry

      persistence

    • Deletes itself

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

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

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks