Overview

overview

10

Static

static

06475a5524...3b.exe

windows7_x64

10

06475a5524...3b.exe

windows10-2004_x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    06475a5524fc071ba6e4b9530712503b.exe

  • Size

    185KB

  • Sample

    220613-hvx6vaaed6

  • MD5

    06475a5524fc071ba6e4b9530712503b

  • SHA1

    78b8db45014b75ad1665f367fcbf91812f41c16b

  • SHA256

    e687feecb21bcbd4d4337842b7917d1db503dce7c75d6e7f12a8878a412e809d

  • SHA512

    d816d91804eeac1e96618dad5d5fc57296114a22977d8c9735cf680c7092936633dfb6e579beba9a8c7627fdaef1e71712b99f69effab5691763f20f28ca2a5c

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      06475a5524fc071ba6e4b9530712503b.exe

    • Size

      185KB

    • MD5

      06475a5524fc071ba6e4b9530712503b

    • SHA1

      78b8db45014b75ad1665f367fcbf91812f41c16b

    • SHA256

      e687feecb21bcbd4d4337842b7917d1db503dce7c75d6e7f12a8878a412e809d

    • SHA512

      d816d91804eeac1e96618dad5d5fc57296114a22977d8c9735cf680c7092936633dfb6e579beba9a8c7627fdaef1e71712b99f69effab5691763f20f28ca2a5c

    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

    • 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