Overview

overview

10

Static

static

3

78ca5753c7...2d.exe

windows7-x64

10

78ca5753c7...2d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    VirusShare_5e867ae4a78726523d91eaea386fce6d.zip

  • Size

    96KB

  • Sample

    230511-vtrnwsba8y

  • MD5

    fcca72dd17606bdd1ea650ea4f6f428a

  • SHA1

    1eea8f488cfcd7c643963be6da5dd364284ec86c

  • SHA256

    28485c139a6355cb8429d01defe5cb89e8c0c8bfc1ad5f5520341812478000b1

  • SHA512

    fb538a8c62355fd65b1e637e9821fd9139be7b5ac4c821b6faabc2d3b44c397a999df96d2b91c96b2388e754cc5a508e7b1067e2341f1f98d4f6d8f09c7c388a

  • SSDEEP

    1536:iUBSUaDYAJUIJVesh8oQb6VcCIYL1UJLhVZYtEoS1D1Xv5x2pu:iAaHJUILesuoAecHYa/YtE5Xv54pu

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d

    • Size

      154KB

    • MD5

      5e867ae4a78726523d91eaea386fce6d

    • SHA1

      c9ee64774b15ada9cbd52f88bb47057647978fac

    • SHA256

      78ca5753c7f93fe3ff553ae23fb87395c36a791b61952eabf6b9d96e59c7862d

    • SHA512

      74d7fbb706839e32432abb761dbb02dd0e3d85e8f2f22412549d379f42027a99c4af39febb448b150e6d701d25fab4be698eb9439bcb5a247659dbf888bbb344

    • SSDEEP

      1536:n9Hnxm+W0eDrB6CjnMQSoWp0MYS3+MpHiCUywyJqbgoVtcdnA+QA5Hs5W0+MWVO4:npQDBDjnLSZp3+6iCUyw6oVtrA5He1

    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

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

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • 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

Disabling Security Tools

1
T1089

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks