Overview

overview

10

Static

static

1

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    file

  • Size

    322KB

  • Sample

    230206-rqbaysec75

  • MD5

    47446aab4c244063fa5b4852650093e0

  • SHA1

    383d4023a79edd924cad180666ea969613fdec4d

  • SHA256

    0c2e01cf79746b2f2824d9f39dc28a5b28a36ea0d3866395ad8ed30e961e7ad1

  • SHA512

    f28183ad13ca4c9bd79d11e18779f2a4cf6ed3500f0ca5015443a4b075a87090d2f008ee8d4b980eca396f99b580cae371085137ca69d4df75c4194a46e48c4f

  • SSDEEP

    3072:qfz6kXLWSkKDRKs8SgL8ZridHKS7WALXQSYC1//+sxA7rNAMV+v3:eHLLkKYs8SxrGHzqcYClRkM

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file

    • Size

      322KB

    • MD5

      47446aab4c244063fa5b4852650093e0

    • SHA1

      383d4023a79edd924cad180666ea969613fdec4d

    • SHA256

      0c2e01cf79746b2f2824d9f39dc28a5b28a36ea0d3866395ad8ed30e961e7ad1

    • SHA512

      f28183ad13ca4c9bd79d11e18779f2a4cf6ed3500f0ca5015443a4b075a87090d2f008ee8d4b980eca396f99b580cae371085137ca69d4df75c4194a46e48c4f

    • SSDEEP

      3072:qfz6kXLWSkKDRKs8SgL8ZridHKS7WALXQSYC1//+sxA7rNAMV+v3:eHLLkKYs8SxrGHzqcYClRkM

    Score
    10/10
    tofseexmrigevasionminerpersistencetrojan

    • 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

    • 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

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