Overview

overview

10

Static

static

3

fcf25c1873...18.exe

windows7-x64

10

fcf25c1873...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fcf25c18735685029b0faef2d1cb7850_JaffaCakes118

  • Size

    11.8MB

  • Sample

    240420-rl6lasba7v

  • MD5

    fcf25c18735685029b0faef2d1cb7850

  • SHA1

    71258bc2fe3f91053a9b5756bfe3d94a64196f0d

  • SHA256

    5e3b2944312061327384f31234128bb4ddba910790f8a529f10b40de4330446d

  • SHA512

    13cd2d5029bb63b1fd19f0ef79fa2de728fe2e55d6ce76ed8337d0be7c868f0c29edffbe8b9c6cbd25c604a41d9b0e22b27466bb94ffd1a24f0e9c14514a9415

  • SSDEEP

    49152:CGvEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE:CG

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Targets

    • Target

      fcf25c18735685029b0faef2d1cb7850_JaffaCakes118

    • Size

      11.8MB

    • MD5

      fcf25c18735685029b0faef2d1cb7850

    • SHA1

      71258bc2fe3f91053a9b5756bfe3d94a64196f0d

    • SHA256

      5e3b2944312061327384f31234128bb4ddba910790f8a529f10b40de4330446d

    • SHA512

      13cd2d5029bb63b1fd19f0ef79fa2de728fe2e55d6ce76ed8337d0be7c868f0c29edffbe8b9c6cbd25c604a41d9b0e22b27466bb94ffd1a24f0e9c14514a9415

    • SSDEEP

      49152:CGvEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE:CG

    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

    • 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 Matrix ATT&CK v13

Initial Access

Execution

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