Overview

overview

10

Static

static

913bb67179...61.exe

windows7_x64

10

913bb67179...61.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    Gootloader.zip

  • Size

    107KB

  • Sample

    220613-sf5x9adbf2

  • MD5

    bf441f0ebe5634aedcf6fb13529fe68b

  • SHA1

    c693c901064b3e3877367fe78a597ff44f3fd651

  • SHA256

    ebe3c4c0da5a8fc53184c2a58b11b516bbf47ccf401a4ca1326fe7920d2c6fe9

  • SHA512

    6e155f4cc42799242535a45ccc7b8fdc4484ca14a7850f1388942de48a1c83f5a1eade3bd77be8688c9ed82bf02719cccadeb1f45670d712dddf082bd9187db6

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      913bb671797400d827f39ee27fd4dc540c04f61e4992c8f5ce9c3f3e0fe88d61

    • Size

      12.8MB

    • MD5

      5c2648191655ace3964cfc66c6dccc60

    • SHA1

      996495b874b750440ef36c029543ee9ec277edfd

    • SHA256

      913bb671797400d827f39ee27fd4dc540c04f61e4992c8f5ce9c3f3e0fe88d61

    • SHA512

      1055eefd4ae0cfc1cd647392efb07c62ad31e26f5f6045416429330675acbc182e32e3eafdf51630a1056a50bc38694e5149db5d19ab90d861a934d76558b3b5

    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

    • 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

    • 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

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks