Overview

overview

10

Static

static

3

8f6f42565e...cs.exe

windows7-x64

10

8f6f42565e...cs.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    8f6f42565e966692af1ac93e82a1d100_NeikiAnalytics

  • Size

    223KB

  • Sample

    240514-gtmhaadf42

  • MD5

    8f6f42565e966692af1ac93e82a1d100

  • SHA1

    097ccdca934cec31b2b54e6ca54ab9df6c04f7e0

  • SHA256

    af96cc289214800481e21ed8a8a4d52b49761bda1ae487648bbba6a949e69c13

  • SHA512

    b269ba4532c7de6471a9fafe43f64718711a36d0ea5250ed784e5b18bfb4451a23b0d414732f03c68375b7e3b88c01956a1738060d913e9814d4549c6579a6ea

  • SSDEEP

    3072:6tzKsLYSb9knI4UGW+D0pOG64gy4N9kSAU0oBHZStU7bZVC6PCZ9TTM1eQ:SIUGWvaV0YSSJVl8TTB

Score
10/10
tofseeevasionexecutionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      8f6f42565e966692af1ac93e82a1d100_NeikiAnalytics

    • Size

      223KB

    • MD5

      8f6f42565e966692af1ac93e82a1d100

    • SHA1

      097ccdca934cec31b2b54e6ca54ab9df6c04f7e0

    • SHA256

      af96cc289214800481e21ed8a8a4d52b49761bda1ae487648bbba6a949e69c13

    • SHA512

      b269ba4532c7de6471a9fafe43f64718711a36d0ea5250ed784e5b18bfb4451a23b0d414732f03c68375b7e3b88c01956a1738060d913e9814d4549c6579a6ea

    • SSDEEP

      3072:6tzKsLYSb9knI4UGW+D0pOG64gy4N9kSAU0oBHZStU7bZVC6PCZ9TTM1eQ:SIUGWvaV0YSSJVl8TTB

    Score
    10/10
    tofseeevasionexecutionpersistencetrojan

    • Tofsee

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

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • Creates new service(s)

      persistenceexecution

    • 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

    • Executes dropped EXE

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify Tools

1
T1562.001

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks