Overview

overview

10

Static

static

3

0a92ddabee...4f.exe

windows7-x64

10

0a92ddabee...4f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    0a92ddabee8fc6fc69b3999f21249e4acdd592d71a6a3bba5fc8190a5751514f

  • Size

    10.2MB

  • Sample

    230609-mrz89acf8w

  • MD5

    533c57dda4dba8ea23650d642ebbfd41

  • SHA1

    d11daa23ca404b163d04dade2c22d320a18fb098

  • SHA256

    0a92ddabee8fc6fc69b3999f21249e4acdd592d71a6a3bba5fc8190a5751514f

  • SHA512

    5198545f3395d58ac8fccbad2bd924d519dbcdce7177598828384052b6e964108a01bc1e89ace8118ff80e0906f1d252d214b0a1430fa1e62994ff1063915db6

  • SSDEEP

    49152:RHdOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOW:

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      0a92ddabee8fc6fc69b3999f21249e4acdd592d71a6a3bba5fc8190a5751514f

    • Size

      10.2MB

    • MD5

      533c57dda4dba8ea23650d642ebbfd41

    • SHA1

      d11daa23ca404b163d04dade2c22d320a18fb098

    • SHA256

      0a92ddabee8fc6fc69b3999f21249e4acdd592d71a6a3bba5fc8190a5751514f

    • SHA512

      5198545f3395d58ac8fccbad2bd924d519dbcdce7177598828384052b6e964108a01bc1e89ace8118ff80e0906f1d252d214b0a1430fa1e62994ff1063915db6

    • SSDEEP

      49152:RHdOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOW:

    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

    • Modifies Windows Firewall

      evasion

    • Sets service image path in registry

      persistence

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • 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

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks