Overview

overview

10

Static

static

b60265666d...55.exe

windows7-x64

b60265666d...55.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b60265666d49a2214d3b0ccd4ee54a55.exe

  • Size

    302KB

  • Sample

    220717-kpb3jahah7

  • MD5

    b60265666d49a2214d3b0ccd4ee54a55

  • SHA1

    4a92f26bd576c7c06da14a140efffb06d2955c68

  • SHA256

    22179b5cece54e42dbc249c5112994e0e760c2435f3547579d04d19882b79b03

  • SHA512

    5c0453ede36ac914e1b4822c016d391cc11a7897d91d6323822edc7555350f718a9176f5a4b5e4be2c1dfc1f2dcde8e5071aa990e54ff2b3b25650bf535351f6

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      b60265666d49a2214d3b0ccd4ee54a55.exe

    • Size

      302KB

    • MD5

      b60265666d49a2214d3b0ccd4ee54a55

    • SHA1

      4a92f26bd576c7c06da14a140efffb06d2955c68

    • SHA256

      22179b5cece54e42dbc249c5112994e0e760c2435f3547579d04d19882b79b03

    • SHA512

      5c0453ede36ac914e1b4822c016d391cc11a7897d91d6323822edc7555350f718a9176f5a4b5e4be2c1dfc1f2dcde8e5071aa990e54ff2b3b25650bf535351f6

    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

    • 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