Overview

overview

10

Static

static

3868469305...62.exe

windows7-x64

10

3868469305...62.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    38684693053584c3cab7a9de72d95a8a1bd010351ce1c023505f36b770f7fa62

  • Size

    106KB

  • Sample

    221129-wzg73sgd71

  • MD5

    09996ce0bdb202476c44b60f31ec4418

  • SHA1

    9a6c83898031cf8e3ecc6993981b7c818bb7bc78

  • SHA256

    7964dbbcd14d66c785b5908a2a9d4969906f1312635a917302cc755e9c27aa6f

  • SHA512

    cbba6092a5c2984e123f71bc6a1ced551c06984809adc249db836b9d2416128b69c5e9c343f6e0dc6ad6211dfd14b2936622fd1206e09bdf578bfb5fe6dc6b9d

  • SSDEEP

    1536:HqxtFFrdq/O8ZY35tVNQ02ceX8bh7d6Mt240SGUvOn/+7aC5EuLbjr57IbqooJR0:IroNytVEc28tZ6EuSGcOn//Q3r5H5il

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      38684693053584c3cab7a9de72d95a8a1bd010351ce1c023505f36b770f7fa62

    • Size

      148KB

    • MD5

      53538af5c50d7630c126e6c2dff32c7b

    • SHA1

      19d9fc9ad096addf16608b6f13ea24bd042c6c51

    • SHA256

      38684693053584c3cab7a9de72d95a8a1bd010351ce1c023505f36b770f7fa62

    • SHA512

      4d234a9e726d6fb5822e5a31c00d63f0ac6aa0bad4c129c270d18fe7168a6760a030dc3c48305a88350756c4836b373a081070622cc32806af6b71c221c7db68

    • SSDEEP

      3072:i2cTyeE8AeWn5ku22jifgRimvWkdpvbY:CTyx8Aej2jdzek/Y

    Score
    10/10
    tofseeevasionpersistencetrojanxmrigminer

    • Tofsee

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

      trojantofsee

    • 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.

    • 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

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks