Analysis

  • max time kernel
    66s
  • max time network
    66s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 20:45

General

  • Target

    dc8abab8b4ac78e63c9412d44f02f3dfbe055d4de4d2e2060451a649125673ba.exe

  • Size

    275KB

  • MD5

    5555f3e8200401987138db18aee5e61e

  • SHA1

    b5cfd44d1bcd437aa7dd0fc75cda1b5eadd19e46

  • SHA256

    dc8abab8b4ac78e63c9412d44f02f3dfbe055d4de4d2e2060451a649125673ba

  • SHA512

    39701c9547075accec9d6930f5a30fca6c9501b46a7dfc9042754dfe8e55bb48c11b6b3ec2e3568920ba0332c8e570e490249c7409175df87c7026be8c97bfa5

  • SSDEEP

    6144:RBKHYmz6mq2pmHmFV2YjnWuwqzeRhva/cfAO9EJgO:G4m5bpnL2KnEqCRhvaU4j

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 3 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 3 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc8abab8b4ac78e63c9412d44f02f3dfbe055d4de4d2e2060451a649125673ba.exe
    "C:\Users\Admin\AppData\Local\Temp\dc8abab8b4ac78e63c9412d44f02f3dfbe055d4de4d2e2060451a649125673ba.exe"
    1⤵
      PID:1032
    • C:\Users\Admin\AppData\Local\Temp\QQPCDownload60116.exe
      C:\Users\Admin\AppData\Local\Temp\QQPCDownload60116.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1920
      • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\QQPCDownload.exe
        "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\QQPCDownload.exe" ##cmd=1;supplyid=60116
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Writes to the Master Boot Record (MBR)
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1304

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\QQDownload.dll

      Filesize

      636KB

      MD5

      e2401fa2c7096c83a26153135c389b5c

      SHA1

      7f453599197034ec36716577d4525e4961444af8

      SHA256

      a9a5456d3878664a0f689d25401de1328a56972a697d38b0798a32de05f42c61

      SHA512

      a42d0f5e127e3c36e03518eac6da4f953bff912f4515591b8a857c6a525ebc7352769edb5bb389d156babf187bc84bd0981db7a9e50d10fb35b9aa8c10372b1d

    • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\QQPCDownload.exe

      Filesize

      449KB

      MD5

      77f662ee28f3965a4d8f3fc0cf55e5d9

      SHA1

      c78e1e0846bc5a5be770dd1159266c995b4b6fcb

      SHA256

      3e1a024853a85fab452e078d8014a3ec12c20fe8e836acfcde45ab5d636069c2

      SHA512

      4fda8167f82c47ba732718aafe5ad544c292e9776ff3a8520d641dc66acaeb5b6d2c9b43de37634080f1e01d52ba95df7896bddccf8abd8ea624cb3171d41c3a

    • C:\Users\Admin\AppData\Local\Temp\QQPCDownload60116.exe

      Filesize

      889KB

      MD5

      d7df8b258c882fe7ac2229ab26efa83d

      SHA1

      dc099e6be8e77900f34728d46f331ff6e14dae75

      SHA256

      9c7cc6693aad43de46ea3a5900e81ecc32b601cf3e2a2b428b6d1aef6f0d22c0

      SHA512

      cdedabe7d359ce30e9b268093cb6fa547fbd9cab8c5bfb96398bd92fd4008d7ed4a942053dcf3add8f30217ca53ae064f223de5bb9f616a15afea29bd8601638

    • C:\Users\Admin\AppData\Local\Temp\QQPCDownload60116.exe

      Filesize

      889KB

      MD5

      d7df8b258c882fe7ac2229ab26efa83d

      SHA1

      dc099e6be8e77900f34728d46f331ff6e14dae75

      SHA256

      9c7cc6693aad43de46ea3a5900e81ecc32b601cf3e2a2b428b6d1aef6f0d22c0

      SHA512

      cdedabe7d359ce30e9b268093cb6fa547fbd9cab8c5bfb96398bd92fd4008d7ed4a942053dcf3add8f30217ca53ae064f223de5bb9f616a15afea29bd8601638

    • \Users\Admin\AppData\Local\Temp\7ZipSfx.000\QQPCDownload.exe

      Filesize

      449KB

      MD5

      77f662ee28f3965a4d8f3fc0cf55e5d9

      SHA1

      c78e1e0846bc5a5be770dd1159266c995b4b6fcb

      SHA256

      3e1a024853a85fab452e078d8014a3ec12c20fe8e836acfcde45ab5d636069c2

      SHA512

      4fda8167f82c47ba732718aafe5ad544c292e9776ff3a8520d641dc66acaeb5b6d2c9b43de37634080f1e01d52ba95df7896bddccf8abd8ea624cb3171d41c3a

    • \Users\Admin\AppData\Local\Temp\7ZipSfx.000\QQPCDownload.exe

      Filesize

      449KB

      MD5

      77f662ee28f3965a4d8f3fc0cf55e5d9

      SHA1

      c78e1e0846bc5a5be770dd1159266c995b4b6fcb

      SHA256

      3e1a024853a85fab452e078d8014a3ec12c20fe8e836acfcde45ab5d636069c2

      SHA512

      4fda8167f82c47ba732718aafe5ad544c292e9776ff3a8520d641dc66acaeb5b6d2c9b43de37634080f1e01d52ba95df7896bddccf8abd8ea624cb3171d41c3a

    • \Users\Admin\AppData\Local\Temp\7ZipSfx.000\qqdownload.dll

      Filesize

      636KB

      MD5

      e2401fa2c7096c83a26153135c389b5c

      SHA1

      7f453599197034ec36716577d4525e4961444af8

      SHA256

      a9a5456d3878664a0f689d25401de1328a56972a697d38b0798a32de05f42c61

      SHA512

      a42d0f5e127e3c36e03518eac6da4f953bff912f4515591b8a857c6a525ebc7352769edb5bb389d156babf187bc84bd0981db7a9e50d10fb35b9aa8c10372b1d

    • memory/1032-54-0x0000000076711000-0x0000000076713000-memory.dmp

      Filesize

      8KB

    • memory/1032-55-0x0000000000400000-0x00000000004D6000-memory.dmp

      Filesize

      856KB

    • memory/1032-68-0x0000000000400000-0x00000000004D6000-memory.dmp

      Filesize

      856KB

    • memory/1304-61-0x0000000000000000-mapping.dmp

    • memory/1304-66-0x0000000010000000-0x00000000101DA000-memory.dmp

      Filesize

      1.9MB

    • memory/1304-67-0x0000000010000000-0x00000000101DA000-memory.dmp

      Filesize

      1.9MB