Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/11/2024, 03:29

General

  • Target

    f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe

  • Size

    68KB

  • MD5

    b2de2b7bb31d9cab09124a0b6ceda640

  • SHA1

    ab62464ebab3e8ded51aa543ac81fd5953dcb2ae

  • SHA256

    f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122

  • SHA512

    13c155bad0da692ce1eef50ff569f4dca6153c5b1344d9fe7d0f6aa51fc97f89734fee569eb6d26f982a216ac503d9679c9bfa7863c373e5ee3234301f29367f

  • SSDEEP

    1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1+awJLBs:ulg35GTslA5t3GawJLO

Malware Config

Signatures

  • Windows security bypass 2 TTPs 4 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Indicator Removal: Clear Persistence 1 TTPs 1 IoCs

    remove IFEO.

  • Modifies WinLogon 2 TTPs 5 IoCs
  • Drops file in System32 directory 9 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe
    "C:\Users\Admin\AppData\Local\Temp\f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe"
    1⤵
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4604
    • C:\Windows\SysWOW64\oumvidoat-nid.exe
      "C:\Windows\system32\oumvidoat-nid.exe"
      2⤵
      • Windows security bypass
      • Boot or Logon Autostart Execution: Active Setup
      • Event Triggered Execution: Image File Execution Options Injection
      • Executes dropped EXE
      • Windows security modification
      • Indicator Removal: Clear Persistence
      • Modifies WinLogon
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\Windows\SysWOW64\oumvidoat-nid.exe
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        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1920

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\eagfusoar.exe

          Filesize

          71KB

          MD5

          4e7820649bdd5282447a81f482898ac5

          SHA1

          44481795f8184c33a4383e1efe4f262fb72eacf9

          SHA256

          25b999959189759494f83675dcdb07abd00988a3627f60917b7d9336fe1847f6

          SHA512

          f0cb964f2044b0808a038c5771a3eede10a84077aef5a990e6091a208848c1344382ab7054ed6c27c29a8406f0245d301c98fefca509477eea997cad8e92fb1c

        • C:\Windows\SysWOW64\oucsukar.exe

          Filesize

          70KB

          MD5

          248942c4ab12664d9cb2942dbc6d51e8

          SHA1

          bf0fb45ceb0baca8264a1786bb6a841f73c916bd

          SHA256

          d0659cbcfd840189393277c3de477c888a5037876dc0b0bd97561ee5d8ac067f

          SHA512

          1ab4b3cf297abd9d974b74f81362b08ccd0c5377752fd15e750eee5038d5147efd16ab36186ff8b42466391b260e58a1cbc779c21da15742b9ce5e948ce270ae

        • C:\Windows\SysWOW64\oumboafoot-oxid.dll

          Filesize

          5KB

          MD5

          f37b21c00fd81bd93c89ce741a88f183

          SHA1

          b2796500597c68e2f5638e1101b46eaf32676c1c

          SHA256

          76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

          SHA512

          252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

        • C:\Windows\SysWOW64\oumvidoat-nid.exe

          Filesize

          68KB

          MD5

          b2de2b7bb31d9cab09124a0b6ceda640

          SHA1

          ab62464ebab3e8ded51aa543ac81fd5953dcb2ae

          SHA256

          f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122

          SHA512

          13c155bad0da692ce1eef50ff569f4dca6153c5b1344d9fe7d0f6aa51fc97f89734fee569eb6d26f982a216ac503d9679c9bfa7863c373e5ee3234301f29367f

        • memory/1788-46-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1920-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4604-5-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB