Overview

overview

10

Static

static

1

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    file.exe

  • Size

    300KB

  • Sample

    230206-26tgksbe6z

  • MD5

    1e5707d88142fc30dd5020efe01a2d40

  • SHA1

    c44d8d95691d2a906166601058193e791e5c5d85

  • SHA256

    babfd5dc2572543908aa2ee354a89806b1e5e77ae762ac17e639a4edb890f577

  • SHA512

    9b4e8bee60324312abb1593822a5171f62af3afda5bba3f616ce822f2e2b3213ff39c43093c8a413942e0f188b94560c3fd8510e1854cd819ea3f6795f205c3c

  • SSDEEP

    3072:C54b6bOxdLoJsRGR0Y9WTnXBeYFC36MdDS0SyQcbuQjiMTE5XcAMRtafj:CqFxdLWTi/1C3VS0SyQcbuQj9ra

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file.exe

    • Size

      300KB

    • MD5

      1e5707d88142fc30dd5020efe01a2d40

    • SHA1

      c44d8d95691d2a906166601058193e791e5c5d85

    • SHA256

      babfd5dc2572543908aa2ee354a89806b1e5e77ae762ac17e639a4edb890f577

    • SHA512

      9b4e8bee60324312abb1593822a5171f62af3afda5bba3f616ce822f2e2b3213ff39c43093c8a413942e0f188b94560c3fd8510e1854cd819ea3f6795f205c3c

    • SSDEEP

      3072:C54b6bOxdLoJsRGR0Y9WTnXBeYFC36MdDS0SyQcbuQjiMTE5XcAMRtafj:CqFxdLWTi/1C3VS0SyQcbuQj9ra

    Score
    10/10
    tofseeevasionpersistencetrojanxmrigminer

    • 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