Overview

overview

10

Static

static

3

f5cbfe63e0...18.exe

windows7-x64

10

f5cbfe63e0...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f5cbfe63e02723b835516647584848d4_JaffaCakes118

  • Size

    13.5MB

  • Sample

    240417-pylesahb3y

  • MD5

    f5cbfe63e02723b835516647584848d4

  • SHA1

    07dd6af989d6d11f4efcf5a9594912d851b10135

  • SHA256

    6d11a016ff70b46205d7ef21efb3fa132b878580a77ed923566257751dd7a11d

  • SHA512

    a5143335125344278d49a9eb6be29bbd8fb05aa84d00e01e5e05b2bee4243a8d45c2f469cb46f5e04af70679511b6a1ebc3ea261894dca3bb0fa0a498321b91f

  • SSDEEP

    6144:x2BxZXDssssssssssssssssssssssssssssssssssssssssssssssssssssssssk:x4V

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      f5cbfe63e02723b835516647584848d4_JaffaCakes118

    • Size

      13.5MB

    • MD5

      f5cbfe63e02723b835516647584848d4

    • SHA1

      07dd6af989d6d11f4efcf5a9594912d851b10135

    • SHA256

      6d11a016ff70b46205d7ef21efb3fa132b878580a77ed923566257751dd7a11d

    • SHA512

      a5143335125344278d49a9eb6be29bbd8fb05aa84d00e01e5e05b2bee4243a8d45c2f469cb46f5e04af70679511b6a1ebc3ea261894dca3bb0fa0a498321b91f

    • SSDEEP

      6144:x2BxZXDssssssssssssssssssssssssssssssssssssssssssssssssssssssssk:x4V

    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