Overview

overview

10

Static

static

8

33a4613abc...13.exe

windows7_x64

10

33a4613abc...13.exe

windows10-2004_x64

8

Sharing

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General

  • Target

    33a4613abccd233fbfd2657b47227b18f073b318aef50363eebbcad4ee876a13

  • Size

    150KB

  • Sample

    220620-bq1b3scca9

  • MD5

    6ab83c7b097ab214b88c82fe574b54aa

  • SHA1

    1ecb7a96d52c0d1508bff3aedba472bf46a89d37

  • SHA256

    33a4613abccd233fbfd2657b47227b18f073b318aef50363eebbcad4ee876a13

  • SHA512

    10affd6dd0d0dacfb6fb6c911e7247da62b9a3cf174ab82cd79e0ebf5fa09400df728d616023b5ac774ba6b02d5b934e0ea06d3449e0fe346fff5cd07beb752e

Score
10/10
tofseepersistencetrojanupx

Malware Config

Extracted

Family

tofsee

C2

91.218.38.245

188.165.132.183

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Targets

    • Target

      33a4613abccd233fbfd2657b47227b18f073b318aef50363eebbcad4ee876a13

    • Size

      150KB

    • MD5

      6ab83c7b097ab214b88c82fe574b54aa

    • SHA1

      1ecb7a96d52c0d1508bff3aedba472bf46a89d37

    • SHA256

      33a4613abccd233fbfd2657b47227b18f073b318aef50363eebbcad4ee876a13

    • SHA512

      10affd6dd0d0dacfb6fb6c911e7247da62b9a3cf174ab82cd79e0ebf5fa09400df728d616023b5ac774ba6b02d5b934e0ea06d3449e0fe346fff5cd07beb752e

    Score
    10/10
    tofseepersistencetrojanupx

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

      trojantofsee

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks