Analysis

  • max time kernel
    166s
  • max time network
    166s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 02:06

General

  • Target

    504a8ffeec1155b4a237742c90b20a5996940df8d7bf0cd3a37b647e2398e093.exe

  • Size

    143KB

  • MD5

    b202d8c78c7cd264dc28e6e709cf2cc0

  • SHA1

    dd506f337d8b61bace0b4ffa6cb69fd3fe2ad2a1

  • SHA256

    504a8ffeec1155b4a237742c90b20a5996940df8d7bf0cd3a37b647e2398e093

  • SHA512

    41b5f5c64919d5830eaef527c65a4393412c62ca8f13f4d76478760504610383c4c70ecd6bca714181da19663046ff6ebaf3dd668ca789dcfbd552b8684b9dbb

Score
10/10

Malware Config

Signatures

  • Sodin,Sodinokibi,REvil

    Ransomware with advanced anti-analysis and privilege escalation functionality.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\504a8ffeec1155b4a237742c90b20a5996940df8d7bf0cd3a37b647e2398e093.exe
    "C:\Users\Admin\AppData\Local\Temp\504a8ffeec1155b4a237742c90b20a5996940df8d7bf0cd3a37b647e2398e093.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2668
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe Delete Shadows /All /Quiet & bcdedit /set {default} recoveryenabled No & bcdedit /set {default} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3824
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin.exe Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:1176
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1732

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

File Deletion

2
T1107

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Impact

Inhibit System Recovery

2
T1490

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2668-118-0x0000000000CC0000-0x0000000000CE3000-memory.dmp
    Filesize

    140KB

  • memory/2668-119-0x0000000000DF0000-0x0000000000DF1000-memory.dmp
    Filesize

    4KB

  • memory/2668-120-0x00000000010C0000-0x00000000010E3000-memory.dmp
    Filesize

    140KB

  • memory/2668-121-0x0000000001110000-0x0000000001111000-memory.dmp
    Filesize

    4KB

  • memory/2668-122-0x0000000001120000-0x0000000001126000-memory.dmp
    Filesize

    24KB