Overview

overview

10

Static

static

229b6c4fa6...6f.exe

windows7_x64

10

229b6c4fa6...6f.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    229b6c4fa6bf3086364bbb00da7199f5e5c006062b8d986aebc6a68efe28516f

  • Size

    97KB

  • Sample

    220612-e91czaahd4

  • MD5

    4d20335690b8218af519b6a5ff523c94

  • SHA1

    05b23688e15db6b5b5730e76c762af9a1390617c

  • SHA256

    229b6c4fa6bf3086364bbb00da7199f5e5c006062b8d986aebc6a68efe28516f

  • SHA512

    ffa59b9145ee118d0dfedf4dd7b6ed364ab43d5347ba8f34d2cbdde09ca318b4f9de89b1ec4933bd0eaa7068bb15bb2bbaed3658d5b5713caf02455eed20ece5

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      229b6c4fa6bf3086364bbb00da7199f5e5c006062b8d986aebc6a68efe28516f

    • Size

      97KB

    • MD5

      4d20335690b8218af519b6a5ff523c94

    • SHA1

      05b23688e15db6b5b5730e76c762af9a1390617c

    • SHA256

      229b6c4fa6bf3086364bbb00da7199f5e5c006062b8d986aebc6a68efe28516f

    • SHA512

      ffa59b9145ee118d0dfedf4dd7b6ed364ab43d5347ba8f34d2cbdde09ca318b4f9de89b1ec4933bd0eaa7068bb15bb2bbaed3658d5b5713caf02455eed20ece5

    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