Overview

overview

10

Static

static

3

3fdb3d1b28...18.exe

windows7-x64

10

3fdb3d1b28...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3fdb3d1b28ad105c77c7b1506ae9c1fe_JaffaCakes118

  • Size

    13.9MB

  • Sample

    240713-c398gssbjk

  • MD5

    3fdb3d1b28ad105c77c7b1506ae9c1fe

  • SHA1

    e98ff352d4fd79d4b9e3f5909f3c82c01e22ec1c

  • SHA256

    39d036a551bda39f12cb19872829595cc49592b2b67f045cc8af0e152dd5bfa1

  • SHA512

    5630fb09f2d34bf3cd1051e52a56290434fc38c01182e822bc957849c0d56cdf41f4d6f2757b4467053adc1470c6e39116b687abbdc2bc069718a93d6540caea

  • SSDEEP

    196608:BLad4qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq3:BL

Score
10/10
tofseeevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      3fdb3d1b28ad105c77c7b1506ae9c1fe_JaffaCakes118

    • Size

      13.9MB

    • MD5

      3fdb3d1b28ad105c77c7b1506ae9c1fe

    • SHA1

      e98ff352d4fd79d4b9e3f5909f3c82c01e22ec1c

    • SHA256

      39d036a551bda39f12cb19872829595cc49592b2b67f045cc8af0e152dd5bfa1

    • SHA512

      5630fb09f2d34bf3cd1051e52a56290434fc38c01182e822bc957849c0d56cdf41f4d6f2757b4467053adc1470c6e39116b687abbdc2bc069718a93d6540caea

    • SSDEEP

      196608:BLad4qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq3:BL

    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

    • 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