Overview

overview

10

Static

static

1aa5697f96...fb.exe

windows7_x64

3

1aa5697f96...fb.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    1aa5697f96a51fd5c776b394adbc732ab28b5b3228077dc11608b2a131cb5bfb

  • Size

    328KB

  • Sample

    220607-2aqe2sahhm

  • MD5

    1a848d9da35b7e5d8faa66c836e94861

  • SHA1

    f161a407f9e3fecf8d1739cc841f2376db566c5d

  • SHA256

    1aa5697f96a51fd5c776b394adbc732ab28b5b3228077dc11608b2a131cb5bfb

  • SHA512

    f1cef77fc5781c9e4ce15d5e2ffce9f658446f8bbab98a107e994fa701b73f5616b4d710cc1e33362d5b46f907c6efa4bc56c7d34f9105c80336b14e34b323d5

Score
10/10
tofseepersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

103.232.222.57

111.121.193.242

123.249.0.22

Targets

    • Target

      1aa5697f96a51fd5c776b394adbc732ab28b5b3228077dc11608b2a131cb5bfb

    • Size

      328KB

    • MD5

      1a848d9da35b7e5d8faa66c836e94861

    • SHA1

      f161a407f9e3fecf8d1739cc841f2376db566c5d

    • SHA256

      1aa5697f96a51fd5c776b394adbc732ab28b5b3228077dc11608b2a131cb5bfb

    • SHA512

      f1cef77fc5781c9e4ce15d5e2ffce9f658446f8bbab98a107e994fa701b73f5616b4d710cc1e33362d5b46f907c6efa4bc56c7d34f9105c80336b14e34b323d5

    Score
    10/10
    tofseepersistencetrojan

    • Tofsee

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

      trojantofsee

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

      persistence

    • 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

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks