3f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd

General
Target

3f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exe

Filesize

78KB

Completed

28-02-2021 07:10

Score
10/10
MD5

b7522739be3b41f898204a82bebbf202

SHA1

350d9490d8839b357882a2777e9dbf51ebcf4006

SHA256

3f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd

Malware Config
Signatures 8

Filter: none

Defense Evasion
Discovery
Persistence
  • MetamorpherRAT

    Description

    Metamorpherrat is a hacking tool that has been around for a while since 2013.

  • Executes dropped EXE
    tmp861E.tmp.exe

    Reported IOCs

    pidprocess
    2280tmp861E.tmp.exe
  • Deletes itself
    tmp861E.tmp.exe

    Reported IOCs

    pidprocess
    2280tmp861E.tmp.exe
  • Uses the VBS compiler for execution

    TTPs

    Scripting
  • Adds Run key to start application
    tmp861E.tmp.exe

    TTPs

    Registry Run Keys / Startup FolderModify Registry

    Reported IOCs

    descriptioniocprocess
    Set value (str)\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ShFusRes = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\big5.exe\""tmp861E.tmp.exe
  • Enumerates physical storage devices

    Description

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

    TTPs

    System Information Discovery
  • Suspicious use of AdjustPrivilegeToken
    3f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exetmp861E.tmp.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeDebugPrivilege7443f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exe
    Token: SeDebugPrivilege2280tmp861E.tmp.exe
  • Suspicious use of WriteProcessMemory
    3f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exevbc.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 744 wrote to memory of 6287443f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exevbc.exe
    PID 744 wrote to memory of 6287443f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exevbc.exe
    PID 744 wrote to memory of 6287443f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exevbc.exe
    PID 628 wrote to memory of 1320628vbc.execvtres.exe
    PID 628 wrote to memory of 1320628vbc.execvtres.exe
    PID 628 wrote to memory of 1320628vbc.execvtres.exe
    PID 744 wrote to memory of 22807443f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exetmp861E.tmp.exe
    PID 744 wrote to memory of 22807443f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exetmp861E.tmp.exe
    PID 744 wrote to memory of 22807443f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exetmp861E.tmp.exe
Processes 4
  • C:\Users\Admin\AppData\Local\Temp\3f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exe
    "C:\Users\Admin\AppData\Local\Temp\3f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exe"
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of WriteProcessMemory
    PID:744
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\zk8gwomo.cmdline"
      Suspicious use of WriteProcessMemory
      PID:628
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES89B7.tmp" "C:\Users\Admin\AppData\Local\Temp\vbc616DA83934A34135AE1575B31F22542E.TMP"
        PID:1320
    • C:\Users\Admin\AppData\Local\Temp\tmp861E.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp861E.tmp.exe" C:\Users\Admin\AppData\Local\Temp\3f5c2aacc7134dc7a7d78f4731c01db691be30d2989274f33f1b56e4090820cd.exe
      Executes dropped EXE
      Deletes itself
      Adds Run key to start application
      Suspicious use of AdjustPrivilegeToken
      PID:2280
Network
MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Defense Evasion
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Privilege Escalation
                    Replay Monitor
                    00:00 00:00
                    Downloads
                    • C:\Users\Admin\AppData\Local\Temp\RES89B7.tmp

                      MD5

                      b68f6c81742ed49f8bbfd5ff0881f758

                      SHA1

                      95cb681a7d1a9caa0e898f3efa55f1fb88eef7a5

                      SHA256

                      1088a1f884d6927f4fff3d78780838b81ce772b98b89ec39435f33e5fc78162c

                      SHA512

                      5d89d77fa4661a7d789e30b090736010c2ebd88208661eeee422391251d2532aff86a4122d788f364c7923a57735050d6d757ff9b1df8d5dd8eb464b6d09dda5

                    • C:\Users\Admin\AppData\Local\Temp\tmp861E.tmp.exe

                      MD5

                      028e972b292b01f092dcd748a5092b88

                      SHA1

                      52c9779da19287e5453f006ec123ab6877aaef16

                      SHA256

                      3a7202692ab4fe7472de26cfffb165317dc74186af74992663dc717a3bc574bb

                      SHA512

                      fa2ece5aec549ba9fbc18a7417053f14f40b4456660b4a5aa02c90f7b9cf87fc07c01ecda24a56482bf2613ec99baba9d71e949018a538dcb3fb218768bf7048

                    • C:\Users\Admin\AppData\Local\Temp\tmp861E.tmp.exe

                      MD5

                      028e972b292b01f092dcd748a5092b88

                      SHA1

                      52c9779da19287e5453f006ec123ab6877aaef16

                      SHA256

                      3a7202692ab4fe7472de26cfffb165317dc74186af74992663dc717a3bc574bb

                      SHA512

                      fa2ece5aec549ba9fbc18a7417053f14f40b4456660b4a5aa02c90f7b9cf87fc07c01ecda24a56482bf2613ec99baba9d71e949018a538dcb3fb218768bf7048

                    • C:\Users\Admin\AppData\Local\Temp\vbc616DA83934A34135AE1575B31F22542E.TMP

                      MD5

                      376ef97d4353e713fc4c04db35a627db

                      SHA1

                      16a76c33852e419678becba8f840b923ec073a3e

                      SHA256

                      f8358eb909f4b8688d3504752548e672d7b0e40e9b39373ed9a339c847c6c65a

                      SHA512

                      6d4deedfc942f0e52036047ec362029231a9790e5a45add5bea5a4cc6d0d0362b1c39a5c557c16106b11ec1b527d95e908acf799af0b7e746bf4db1f473bf50d

                    • C:\Users\Admin\AppData\Local\Temp\zCom.resources

                      MD5

                      4f0e8cf79edb6cd381474b21cabfdf4a

                      SHA1

                      7018c96b4c5dab7957d4bcdc82c1e7bb3a4f80c4

                      SHA256

                      e54a257fa391065c120f55841de8c11116ea0e601d90fe1a35dcd340c5dd9cd5

                      SHA512

                      2451a59d09464e30d0df822d9322dbecb83faa92c5a5b71b7b9db62330c40cc7570d66235f137290074a3c4a9f3d8b3447067ed135f1bb60ea9e18d0df39a107

                    • C:\Users\Admin\AppData\Local\Temp\zk8gwomo.0.vb

                      MD5

                      cbfff9a01e74cee08ea0247debc22db5

                      SHA1

                      45cd38be7d36e9f7cabd9ffb385434c7716eb673

                      SHA256

                      8f8fc8c03c4d60dbc66786563b6819fcb7dc4c03006708cefcddba3b3ade8711

                      SHA512

                      bf8468a4c4bb2196476b3772ade2bd7078367cbd0dcd75c641182a7cf26383debc22ce22cfbcf6af4749cc201e80fa6cccd339ca20953c337605c661ee5ce8bd

                    • C:\Users\Admin\AppData\Local\Temp\zk8gwomo.cmdline

                      MD5

                      56a5e4713df50af21992b5c1420c35e9

                      SHA1

                      cc8270ce33326e7a44f9de6b0495f892b379ab36

                      SHA256

                      51f32d2d155522e3b7b6907c4c75fc10912752629369ebd73707f1b5d7b32be0

                      SHA512

                      6ab49467d0e1a9f690f344cd51bc714f958adc84cf7ddba8b790b5459000ceeabc01645344aef5c9e8c2cf6d030281d723ceb45a78b6c6d42724682cc897087e

                    • memory/628-5-0x0000000002380000-0x0000000002381000-memory.dmp

                    • memory/628-3-0x0000000000000000-mapping.dmp

                    • memory/744-2-0x0000000002550000-0x0000000002551000-memory.dmp

                    • memory/1320-8-0x0000000000000000-mapping.dmp

                    • memory/2280-12-0x0000000000000000-mapping.dmp

                    • memory/2280-14-0x0000000002910000-0x0000000002911000-memory.dmp

                    • memory/2280-15-0x0000000002913000-0x0000000002915000-memory.dmp