Overview

overview

10

Static

static

3

6dd275b9c7...dc.exe

windows7-x64

10

6dd275b9c7...dc.exe

windows10-2004-x64

10

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General

  • Target

    6dd275b9c77137fdbaf691f54c9e11dc.exe

  • Size

    249KB

  • Sample

    230602-dx2jtsaa81

  • MD5

    6dd275b9c77137fdbaf691f54c9e11dc

  • SHA1

    edc8bf88d3d27ddbd0dad65c454bcd89e9dab2a3

  • SHA256

    352fbecb3eb8cf1cb6c77b4d775bd7b731708455954cf574f39e9271adf05f41

  • SHA512

    e49fb34d6e70a44754ab9600d707ad326f3cf83a024fb8486204f7cee0fac1f533cea593840c8d41e99971c866cc5b61e6462a773e869f8351225e3546b729d2

  • SSDEEP

    3072:IX1XztMX+Oenl+ZH1PljwdhMWu3Tw5Etw9HA7N5m:c/nlIH1PsqWujdtcg7m

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      6dd275b9c77137fdbaf691f54c9e11dc.exe

    • Size

      249KB

    • MD5

      6dd275b9c77137fdbaf691f54c9e11dc

    • SHA1

      edc8bf88d3d27ddbd0dad65c454bcd89e9dab2a3

    • SHA256

      352fbecb3eb8cf1cb6c77b4d775bd7b731708455954cf574f39e9271adf05f41

    • SHA512

      e49fb34d6e70a44754ab9600d707ad326f3cf83a024fb8486204f7cee0fac1f533cea593840c8d41e99971c866cc5b61e6462a773e869f8351225e3546b729d2

    • SSDEEP

      3072:IX1XztMX+Oenl+ZH1PljwdhMWu3Tw5Etw9HA7N5m:c/nlIH1PsqWujdtcg7m

    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

    • 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