Overview

overview

10

Static

static

ed5e58efc3...72.exe

windows7-x64

10

ed5e58efc3...72.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ed5e58efc3975a82f5994bcba7f82b72

  • Size

    11.9MB

  • Sample

    220809-zy2f4sgbhr

  • MD5

    ed5e58efc3975a82f5994bcba7f82b72

  • SHA1

    6faf209a25369d25be59f36eb64906aa318fdd74

  • SHA256

    88ce97502a44628febe2989f4083f52281bc25d541f37ec59e288eb907f688a4

  • SHA512

    551dcc517a54d979f721497eed32a370429971a50bf0ce318e31169a35cb78079188518b7b8568483c40d71a156afb94bbe3717c34f8b14ed4834d207ec3fe27

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      ed5e58efc3975a82f5994bcba7f82b72

    • Size

      11.9MB

    • MD5

      ed5e58efc3975a82f5994bcba7f82b72

    • SHA1

      6faf209a25369d25be59f36eb64906aa318fdd74

    • SHA256

      88ce97502a44628febe2989f4083f52281bc25d541f37ec59e288eb907f688a4

    • SHA512

      551dcc517a54d979f721497eed32a370429971a50bf0ce318e31169a35cb78079188518b7b8568483c40d71a156afb94bbe3717c34f8b14ed4834d207ec3fe27

    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

    • Checks computer location settings

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

    • Deletes itself

    • 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