Overview

overview

10

Static

static

3

5e40852b1b...18.exe

windows7-x64

10

5e40852b1b...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5e40852b1b836ae50ea61b4dc56124e9_JaffaCakes118

  • Size

    142KB

  • Sample

    240520-kzs4ssce96

  • MD5

    5e40852b1b836ae50ea61b4dc56124e9

  • SHA1

    b01babd89da56da58ae26ea756bfe6dbdbc917d5

  • SHA256

    2ea3f9f2f531dc5153dd2e93f7cc763ce3e425c67eb64dcd06f5204598649b59

  • SHA512

    7e57324bafde20171129bd0a873654cece5827e93a00423bf98a89612343cd483fd67556dedaa72c5ae92f2a603c9dfab880881d986722d1403c508b523bc276

  • SSDEEP

    3072:MO8/FLfgM6rzTkYfiL2+jKfgi4m5nuGFU6W6WN06b3U:I9GzwFLnKP46uC

Score
10/10
tofseeevasionexecutionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      5e40852b1b836ae50ea61b4dc56124e9_JaffaCakes118

    • Size

      142KB

    • MD5

      5e40852b1b836ae50ea61b4dc56124e9

    • SHA1

      b01babd89da56da58ae26ea756bfe6dbdbc917d5

    • SHA256

      2ea3f9f2f531dc5153dd2e93f7cc763ce3e425c67eb64dcd06f5204598649b59

    • SHA512

      7e57324bafde20171129bd0a873654cece5827e93a00423bf98a89612343cd483fd67556dedaa72c5ae92f2a603c9dfab880881d986722d1403c508b523bc276

    • SSDEEP

      3072:MO8/FLfgM6rzTkYfiL2+jKfgi4m5nuGFU6W6WN06b3U:I9GzwFLnKP46uC

    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