Analysis

  • max time kernel
    149s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
  • Loads dropped DLL 3 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 2 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe
    "C:\Users\Admin\AppData\Local\Temp\f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122N.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2680
    • 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
      • Loads dropped DLL
      • 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:2460
      • C:\Windows\SysWOW64\oumvidoat-nid.exe
        ùù¿çç¤
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:2804

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\eagfusoar.exe

          Filesize

          71KB

          MD5

          1dc1ddec966300e973b7c0b5e8fe6fb1

          SHA1

          ce47c7d3153c1db9c555218583211f2c09e9a445

          SHA256

          72cb1d6485b9d35c5599df7778b44af32ebd89318eb83cfb4a9f022ebb2cc559

          SHA512

          7b96c97978d7521b99f550b56f0f048fea3859a5e7fc9d5a3b234415b5b499a108791ce71d0ca02419d29df7619f0356de0d6a9d0a18c45dca94ee33924c869d

        • C:\Windows\SysWOW64\oucsukar.exe

          Filesize

          70KB

          MD5

          c296641c044f2b121d608146a7664578

          SHA1

          28d701554c0b08f260d5b8a624d0ff0eb19b15de

          SHA256

          e264332d4d7665daa5e06187e52a5c7fbfeba92adcce14a45a24bac26260b6b4

          SHA512

          4463ae09751d25679338f4d12b32f1b6cec71cbf81310dc789dc44c6ccbd484b7d79810e0ecd734f4d0ac9158d1b0568e330f7975a9b8ef6a7248655ec4f4981

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

          Filesize

          5KB

          MD5

          f37b21c00fd81bd93c89ce741a88f183

          SHA1

          b2796500597c68e2f5638e1101b46eaf32676c1c

          SHA256

          76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

          SHA512

          252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

        • \Windows\SysWOW64\oumvidoat-nid.exe

          Filesize

          68KB

          MD5

          b2de2b7bb31d9cab09124a0b6ceda640

          SHA1

          ab62464ebab3e8ded51aa543ac81fd5953dcb2ae

          SHA256

          f3c5aa8c6d0efd31fdf284357d7fe29a1ff850683882b4f485d5a33131958122

          SHA512

          13c155bad0da692ce1eef50ff569f4dca6153c5b1344d9fe7d0f6aa51fc97f89734fee569eb6d26f982a216ac503d9679c9bfa7863c373e5ee3234301f29367f

        • memory/2460-52-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2680-9-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2804-53-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB