Overview

overview

10

Static

static

475c6a7176...5c.exe

windows7_x64

10

475c6a7176...5c.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    475c6a7176eeac0d3495f43ee21dcdcd51474b04857ac6f2b08506096eafe85c

  • Size

    120KB

  • Sample

    220714-hraldabcbk

  • MD5

    bcd473e359b0dce9b3d838603f108ad9

  • SHA1

    a7ff28a43ecbd3ac14d1c64a5cd15ad4824bfce6

  • SHA256

    475c6a7176eeac0d3495f43ee21dcdcd51474b04857ac6f2b08506096eafe85c

  • SHA512

    7b12bab3aa8fb372fc46601bfc1e10fc3b025c5a8ff1f3ad2ca6e66d824c4a2caae681809000021320c952df9ec963f0105645fcd8bace5131c781ab8343d126

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      475c6a7176eeac0d3495f43ee21dcdcd51474b04857ac6f2b08506096eafe85c

    • Size

      120KB

    • MD5

      bcd473e359b0dce9b3d838603f108ad9

    • SHA1

      a7ff28a43ecbd3ac14d1c64a5cd15ad4824bfce6

    • SHA256

      475c6a7176eeac0d3495f43ee21dcdcd51474b04857ac6f2b08506096eafe85c

    • SHA512

      7b12bab3aa8fb372fc46601bfc1e10fc3b025c5a8ff1f3ad2ca6e66d824c4a2caae681809000021320c952df9ec963f0105645fcd8bace5131c781ab8343d126

    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