Overview

overview

10

Static

static

80cd7cddd7...6c.exe

windows7_x64

10

80cd7cddd7...6c.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    80cd7cddd76f84d868d57a1cd44861c8b4782b6a90e319cacf8369b62f7dc16c

  • Size

    207KB

  • Sample

    220625-jywb4acdbn

  • MD5

    ad39ad585aa201d750e984c89aa02e9c

  • SHA1

    142a5de3ec0af160e7f21368e39eb45a654df086

  • SHA256

    80cd7cddd76f84d868d57a1cd44861c8b4782b6a90e319cacf8369b62f7dc16c

  • SHA512

    6edfe20a8ae02b9b312689225fdd90fb208d8fde57491e9999946f16334600face6776b6011c96c22bd29d58f1fcd3a43addba849893ef89f07e171b96a76794

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      80cd7cddd76f84d868d57a1cd44861c8b4782b6a90e319cacf8369b62f7dc16c

    • Size

      207KB

    • MD5

      ad39ad585aa201d750e984c89aa02e9c

    • SHA1

      142a5de3ec0af160e7f21368e39eb45a654df086

    • SHA256

      80cd7cddd76f84d868d57a1cd44861c8b4782b6a90e319cacf8369b62f7dc16c

    • SHA512

      6edfe20a8ae02b9b312689225fdd90fb208d8fde57491e9999946f16334600face6776b6011c96c22bd29d58f1fcd3a43addba849893ef89f07e171b96a76794

    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