General

  • Target

    Peki Spoofer V4.exe

  • Size

    548KB

  • Sample

    240425-yc4tnsdh83

  • MD5

    c711b8ca38bb8185a6d6e41c38070538

  • SHA1

    465826e7cbc72487a4885e325a21d4ec66a1bdcf

  • SHA256

    ea1ac23002a691f0822ba54c6624f518251d946492ef1ef5c9286959d86b968b

  • SHA512

    7579d576be88908b70f23e1e33c99162090339a8b5a2dfec9212b82845b50bfa84dfaec431abd4ec0a169701c4cde93d3552851d53421eb2ab1517001b5338a0

  • SSDEEP

    12288:EQ1UK4SmbfMcsgJqyE/KWcRTTjyRrn/FvPF:EQ1rmrMZ8WcJHyVN

Malware Config

Targets

    • Target

      Peki Spoofer V4.exe

    • Size

      548KB

    • MD5

      c711b8ca38bb8185a6d6e41c38070538

    • SHA1

      465826e7cbc72487a4885e325a21d4ec66a1bdcf

    • SHA256

      ea1ac23002a691f0822ba54c6624f518251d946492ef1ef5c9286959d86b968b

    • SHA512

      7579d576be88908b70f23e1e33c99162090339a8b5a2dfec9212b82845b50bfa84dfaec431abd4ec0a169701c4cde93d3552851d53421eb2ab1517001b5338a0

    • SSDEEP

      12288:EQ1UK4SmbfMcsgJqyE/KWcRTTjyRrn/FvPF:EQ1rmrMZ8WcJHyVN

    • Cerber

      Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    • Nirsoft

    • Downloads MZ/PE file

    • Sets DLL path for service in the registry

    • Stops running service(s)

    • Executes dropped EXE

    • Registers COM server for autorun

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Modify Registry

1
T1112

Impair Defenses

1
T1562

Discovery

Query Registry

6
T1012

Peripheral Device Discovery

3
T1120

System Information Discovery

6
T1082

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks