Overview

overview

10

Static

static

1c8743843e...d8.exe

windows7_x64

10

1c8743843e...d8.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    1c8743843e7dcdc405dcfdc5745a05d66f8807740d0d7e3cd169172b9559c0d8

  • Size

    138KB

  • Sample

    220607-scaypsdeak

  • MD5

    e70dc7260416996a8b62ff3b6e0420f6

  • SHA1

    3ad2783d4bc4ffd6d0a2dd4a61f16229b27839d0

  • SHA256

    1c8743843e7dcdc405dcfdc5745a05d66f8807740d0d7e3cd169172b9559c0d8

  • SHA512

    260dfd93c94cf67c91345a1d8c6a5c2399633e25b53b8ad3d87b246235893a385728c86229f36ac257fe20d5dd979248af2c90b5b93f9dc402a0d59b6b71662e

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      1c8743843e7dcdc405dcfdc5745a05d66f8807740d0d7e3cd169172b9559c0d8

    • Size

      138KB

    • MD5

      e70dc7260416996a8b62ff3b6e0420f6

    • SHA1

      3ad2783d4bc4ffd6d0a2dd4a61f16229b27839d0

    • SHA256

      1c8743843e7dcdc405dcfdc5745a05d66f8807740d0d7e3cd169172b9559c0d8

    • SHA512

      260dfd93c94cf67c91345a1d8c6a5c2399633e25b53b8ad3d87b246235893a385728c86229f36ac257fe20d5dd979248af2c90b5b93f9dc402a0d59b6b71662e

    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

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks