Overview

overview

10

Static

static

12ec1fe952...14.exe

windows7_x64

1

12ec1fe952...14.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    12ec1fe952f14a4d6a903ae4a84a5c14.exe

  • Size

    279KB

  • Sample

    220605-j1421sddcp

  • MD5

    12ec1fe952f14a4d6a903ae4a84a5c14

  • SHA1

    99569066968f6b7eac617720a7a6722214fb6f94

  • SHA256

    1b27224ec9506f0880abbf3876463efcf18c0060bfd2cdd697c538c07882acb5

  • SHA512

    024ddf7a1a2b691684feb1f3e1d14ff684a8dd135a8a36e5ede4f31283342d5926c89f05d73c94329b40bf95ffef56f8d9bc9140b30233921a952b1630de448e

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      12ec1fe952f14a4d6a903ae4a84a5c14.exe

    • Size

      279KB

    • MD5

      12ec1fe952f14a4d6a903ae4a84a5c14

    • SHA1

      99569066968f6b7eac617720a7a6722214fb6f94

    • SHA256

      1b27224ec9506f0880abbf3876463efcf18c0060bfd2cdd697c538c07882acb5

    • SHA512

      024ddf7a1a2b691684feb1f3e1d14ff684a8dd135a8a36e5ede4f31283342d5926c89f05d73c94329b40bf95ffef56f8d9bc9140b30233921a952b1630de448e

    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

    • Downloads MZ/PE file

    • 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

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks