Overview

overview

10

Static

static

3

9327e33a90...0b.exe

windows7-x64

10

9327e33a90...0b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9327e33a90213686dbd9084127ba27e2ad729f25c42008f1f14d9db1b93b940b

  • Size

    12.3MB

  • Sample

    240704-l8dadavhpq

  • MD5

    9b0acbcfc4712e061a002ee15a7d0265

  • SHA1

    c923d340cabc3373a37ce8a9dcd2ab1d1a103a5e

  • SHA256

    9327e33a90213686dbd9084127ba27e2ad729f25c42008f1f14d9db1b93b940b

  • SHA512

    0a07827d104ac4d9ae033b3ae4f76ce4991967e0a6499707c91e084f0d70abc63cb858b7e24b3e95cd2648212f7bec06daef1108119eca75a3fc71cfe4cec6e8

  • SSDEEP

    12288:7UVZVSo6Q0ECYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYK:7fo6Q0E

Score
10/10
tofseeevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      9327e33a90213686dbd9084127ba27e2ad729f25c42008f1f14d9db1b93b940b

    • Size

      12.3MB

    • MD5

      9b0acbcfc4712e061a002ee15a7d0265

    • SHA1

      c923d340cabc3373a37ce8a9dcd2ab1d1a103a5e

    • SHA256

      9327e33a90213686dbd9084127ba27e2ad729f25c42008f1f14d9db1b93b940b

    • SHA512

      0a07827d104ac4d9ae033b3ae4f76ce4991967e0a6499707c91e084f0d70abc63cb858b7e24b3e95cd2648212f7bec06daef1108119eca75a3fc71cfe4cec6e8

    • SSDEEP

      12288:7UVZVSo6Q0ECYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYxYK:7fo6Q0E

    Score
    10/10
    tofseeevasionexecutionpersistenceprivilege_escalationtrojan

    • 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 Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks