Overview

overview

10

Static

static

3546db46d6...9f.exe

windows7_x64

10

3546db46d6...9f.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    3546db46d605f744a285fe60fcbacc6b686aa6fae4c32890b030924471e0e59f

  • Size

    99KB

  • Sample

    220619-wvq97agaep

  • MD5

    2b126fbd0352c9ec2f7833af3d0df7ca

  • SHA1

    3bf9cee470ad6cf126635570d89d9d9f30cef386

  • SHA256

    3546db46d605f744a285fe60fcbacc6b686aa6fae4c32890b030924471e0e59f

  • SHA512

    0dfb908197503bf9c1c9deeb015504d1b51d4c00857b34c3862f6c7fd9a4423acb0a068f1b63e2d6757b4c89f2d993e7913767c24d32763afd5e3c1ec43bdcc7

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      3546db46d605f744a285fe60fcbacc6b686aa6fae4c32890b030924471e0e59f

    • Size

      99KB

    • MD5

      2b126fbd0352c9ec2f7833af3d0df7ca

    • SHA1

      3bf9cee470ad6cf126635570d89d9d9f30cef386

    • SHA256

      3546db46d605f744a285fe60fcbacc6b686aa6fae4c32890b030924471e0e59f

    • SHA512

      0dfb908197503bf9c1c9deeb015504d1b51d4c00857b34c3862f6c7fd9a4423acb0a068f1b63e2d6757b4c89f2d993e7913767c24d32763afd5e3c1ec43bdcc7

    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