Overview

overview

10

Static

static

510f46a26c...29.exe

windows7-x64

10

510f46a26c...29.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    510f46a26c07218801889fa4a47b680a6adac3f1262b40fe5e89f16f03803a29

  • Size

    104KB

  • Sample

    221130-ahcelsbc95

  • MD5

    50e1f8181d133644d64dcca5252e398e

  • SHA1

    98f45939a92a05694076b0aca21448d35e7e6114

  • SHA256

    4ddeca2036df82a2f383a7cb9f8169b9521d366d16dba26a42261059ac01857f

  • SHA512

    a3f8d7ba67e417ccebdbcc2d4b80490a68dc0b3c45d1509eb0d3760823a815ebb513bb8c4021193d4c61eb74582deedd7b1b8c5cac37f6b991f22fc1180ed267

  • SSDEEP

    1536:6zPTBPpnN8EYHCcermq+gIQVCUo/QCkp3w/WC5HegB5qozbAfcO5YnQxTy:6zPTBPpniEFD+gFI4zRw/dbAcO5YnEy

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      510f46a26c07218801889fa4a47b680a6adac3f1262b40fe5e89f16f03803a29

    • Size

      146KB

    • MD5

      c2931071a91f8a1ca71ecb555a04ee09

    • SHA1

      b6c8725d95ad7937cb46966472fb563ce6c3f86c

    • SHA256

      510f46a26c07218801889fa4a47b680a6adac3f1262b40fe5e89f16f03803a29

    • SHA512

      b95279bb2a694a4e956bbbbe61abadb893948a6639a4570503737e84dd1188d7723c24d810082c92b05c53529bfb667e676f71a31f2dedd5b230e29b1f567a5f

    • SSDEEP

      3072:MBLYTER4Oh5BShPrLMyW8M4I6ft+4/9O:YrR4VhPrQyu4fF/

    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