Overview

overview

10

Static

static

3

77dd2e67ae...18.exe

windows7-x64

10

77dd2e67ae...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    77dd2e67ae3a0d69f2c7b8d8619e9d9d_JaffaCakes118

  • Size

    142KB

  • Sample

    240527-erskeagf84

  • MD5

    77dd2e67ae3a0d69f2c7b8d8619e9d9d

  • SHA1

    4736ebc4bcc6dea80889ca46575a0d9d10ee05f9

  • SHA256

    c980f397ea8ed1320a3cb81a5e347bd60794bd54e2d7348aee8a7adea1b1beb4

  • SHA512

    deb8ad9fd4693cb01d158a416105345c8a6e62690654bacfcc49947a684c87167618d1bfec1df83701d4e388ad00490771bf3ed47cc5d953b167fd0c6cbf2b5c

  • SSDEEP

    3072:y9Tpm/Wn628w6rzTkYfiL2+jKfgi4m5nuGFU6W6WN06QUj:teizwFLnKP46uC2

Score
10/10
tofseeevasionexecutionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      77dd2e67ae3a0d69f2c7b8d8619e9d9d_JaffaCakes118

    • Size

      142KB

    • MD5

      77dd2e67ae3a0d69f2c7b8d8619e9d9d

    • SHA1

      4736ebc4bcc6dea80889ca46575a0d9d10ee05f9

    • SHA256

      c980f397ea8ed1320a3cb81a5e347bd60794bd54e2d7348aee8a7adea1b1beb4

    • SHA512

      deb8ad9fd4693cb01d158a416105345c8a6e62690654bacfcc49947a684c87167618d1bfec1df83701d4e388ad00490771bf3ed47cc5d953b167fd0c6cbf2b5c

    • SSDEEP

      3072:y9Tpm/Wn628w6rzTkYfiL2+jKfgi4m5nuGFU6W6WN06QUj:teizwFLnKP46uC2

    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

    • 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