Overview

overview

10

Static

static

3

cf08ecb08e...31.exe

windows7-x64

10

cf08ecb08e...31.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    cf08ecb08edbc52e65c8f40215d1e631.exe

  • Size

    235KB

  • Sample

    230602-b7kyqahg4y

  • MD5

    cf08ecb08edbc52e65c8f40215d1e631

  • SHA1

    1de7abbfa87a31b694ee92413c83f7a22a55c2f8

  • SHA256

    19dd9c0331cc180aa3c5d1b2c7d9b8897274b393c5f36957e10281f3965f9580

  • SHA512

    2044e021e7d8eed05ca30205eefd65a586fb23c7eb73bd7b5848895ebc49ebe869d103e935c70564ecb0e573bc22cd0d017501934f781254b1bc40b0888327f4

  • SSDEEP

    3072:uXj1yteXDZ65fyY4RxozmJXEoVyROKipzmmpARedR5TPx2qc:2lI6Cz1oAABfARedf0

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      cf08ecb08edbc52e65c8f40215d1e631.exe

    • Size

      235KB

    • MD5

      cf08ecb08edbc52e65c8f40215d1e631

    • SHA1

      1de7abbfa87a31b694ee92413c83f7a22a55c2f8

    • SHA256

      19dd9c0331cc180aa3c5d1b2c7d9b8897274b393c5f36957e10281f3965f9580

    • SHA512

      2044e021e7d8eed05ca30205eefd65a586fb23c7eb73bd7b5848895ebc49ebe869d103e935c70564ecb0e573bc22cd0d017501934f781254b1bc40b0888327f4

    • SSDEEP

      3072:uXj1yteXDZ65fyY4RxozmJXEoVyROKipzmmpARedR5TPx2qc:2lI6Cz1oAABfARedf0

    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

      trojantofsee

    • Creates new service(s)

      persistence

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • 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

Privilege Escalation

New Service

1
T1050

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks