Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    29-06-2024 04:11

General

  • Target

    e2e3adca74a101c2ccc9449b7c75aff059d08864ba87698fdc6212e96390c799.exe

  • Size

    319KB

  • MD5

    09792127dbc60545639e024d1e2195e5

  • SHA1

    58fe06a353b2a4d6ab3d4fdc10a7c305f7563335

  • SHA256

    e2e3adca74a101c2ccc9449b7c75aff059d08864ba87698fdc6212e96390c799

  • SHA512

    0ea9ea7e7508192ea49db5b4d3da0baa8ae25612e044048c2313e356e2fcb70bfee68b5525305ed626d1186919cea598caf2bcf8ca026a6884e5f43e67b87589

  • SSDEEP

    3072:XVqoCl/YgjxEufVU0TbTyDDalBVnnAQVG/LytaKItS/fiLKS+f5Aq7iu:XsLqdufVUNDa5OTeHI8HiL7+f5b

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • UPX dump on OEP (original entry point) 2 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 9 IoCs
  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 5 IoCs
  • Program crash 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e2e3adca74a101c2ccc9449b7c75aff059d08864ba87698fdc6212e96390c799.exe
    "C:\Users\Admin\AppData\Local\Temp\e2e3adca74a101c2ccc9449b7c75aff059d08864ba87698fdc6212e96390c799.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2480
    • \??\c:\users\admin\appdata\local\temp\e2e3adca74a101c2ccc9449b7c75aff059d08864ba87698fdc6212e96390c799.exe 
      c:\users\admin\appdata\local\temp\e2e3adca74a101c2ccc9449b7c75aff059d08864ba87698fdc6212e96390c799.exe 
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2216
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2216 -s 180
        3⤵
        • Program crash
        PID:2088
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1992
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2816
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Windows directory
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2916
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visiblity of hidden/system files in Explorer
            • Executes dropped EXE
            • Loads dropped DLL
            • Adds Run key to start application
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2872
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe PR
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:2740
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:13 /f
              6⤵
              • Scheduled Task/Job: Scheduled Task
              PID:2440
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:14 /f
              6⤵
              • Scheduled Task/Job: Scheduled Task
              PID:852
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:15 /f
              6⤵
              • Scheduled Task/Job: Scheduled Task
              PID:1864
        • C:\Windows\Explorer.exe
          C:\Windows\Explorer.exe
          4⤵
            PID:2632

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Defense Evasion

    Hide Artifacts

    1
    T1564

    Hidden Files and Directories

    1
    T1564.001

    Modify Registry

    2
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\Resources\Themes\explorer.exe
      Filesize

      135KB

      MD5

      5df368e900a770427dd6e13abfc57729

      SHA1

      1e75fb63630762cc877121b7cc31bd781a97963b

      SHA256

      d919bc8f34620823b68aef1863643969bcbcad1cda663b950e34513230a507e3

      SHA512

      e5d22b3b0a061e52b354151b5343f5db53eedbf73124293aa8962038954a44cd7251e80ae10e2292f3c5e92fff7e6e575cad15a020d9ee89221a1c90c79f49dc

    • \Users\Admin\AppData\Local\Temp\e2e3adca74a101c2ccc9449b7c75aff059d08864ba87698fdc6212e96390c799.exe 
      Filesize

      184KB

      MD5

      1d92c741bc5b2d34dcd0a0265ab54275

      SHA1

      a160982825420567c15f6c11f777cb4ccbe69bb8

      SHA256

      3aab3cf37efd4c034da13a0d7ba8725f49a21d227e05f3bba91d8d36350f4a67

      SHA512

      1da728dba6383e0e9fc51370f8fb782a15e724b57b952d952e4c719f81d517a56035b1e9496da3d7f9bf79af0a4bd5caa8a351ca60f40d637da3648224944b94

    • \Users\Admin\AppData\Local\Temp\~TM21C3.tmp
      Filesize

      1.2MB

      MD5

      d124f55b9393c976963407dff51ffa79

      SHA1

      2c7bbedd79791bfb866898c85b504186db610b5d

      SHA256

      ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

      SHA512

      278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

    • \Users\Admin\AppData\Local\Temp\~TM21F3.tmp
      Filesize

      1.1MB

      MD5

      9b98d47916ead4f69ef51b56b0c2323c

      SHA1

      290a80b4ded0efc0fd00816f373fcea81a521330

      SHA256

      96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

      SHA512

      68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

    • \Windows\Resources\Themes\icsys.icn.exe
      Filesize

      135KB

      MD5

      3b61297a768586856d5b7a157cfc856f

      SHA1

      b2469454e1f9f6b3a2d2673464334330ef3644b0

      SHA256

      a18e2f3103f4086b37706681b66bc12d8c96df97978cd7f55e1e382d9b486568

      SHA512

      1a07c6a8569c1fe94bcc4153bec7f64dfe9be91440a3531ee74b71dd23ef3f9598ffd272d420a971a7f56a9b173f25092ce80fbd0bf8ed0472437e6cbec3af0b

    • \Windows\Resources\spoolsv.exe
      Filesize

      135KB

      MD5

      5fc7d5b424c4f4c943cd6440fc353d1a

      SHA1

      4164e18b613a14458a53aca2453efcb533c27005

      SHA256

      f62e9433f659b3d03549b0dc8846bf2f435761365651de659fbbc352e75a2687

      SHA512

      073771c2673f655a445fd3d2fde9a662409a828e734fd50d3826e823770ae1362d4350c75b8f452ccbc33408dc4e3f1e448f53c30dafd4a573cd9579488f6696

    • \Windows\Resources\svchost.exe
      Filesize

      135KB

      MD5

      521de4286264b5363ef9815d2f2b637e

      SHA1

      1a3842270f4acd14882979d4483d6071a8f4ab77

      SHA256

      9e5089cc880705c51f2fb66e65d32ac3724c93dc12c3cebb5dce56dd9f6e6ac2

      SHA512

      437fb7598713e3f9ae4a71f25476fd4ca108573bace527f6796f15086de553c9b2afef87ea0df36532b5da52870eca64c105703c377f561216b9986884f6da4d

    • memory/1992-73-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

    • memory/1992-37-0x0000000002580000-0x000000000259F000-memory.dmp
      Filesize

      124KB

    • memory/2216-21-0x0000000000400000-0x000000000042A000-memory.dmp
      Filesize

      168KB

    • memory/2216-14-0x0000000000400000-0x000000000042A000-memory.dmp
      Filesize

      168KB

    • memory/2480-24-0x00000000002F0000-0x000000000030F000-memory.dmp
      Filesize

      124KB

    • memory/2480-72-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

    • memory/2480-0-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

    • memory/2740-68-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

    • memory/2740-70-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

    • memory/2916-51-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB

    • memory/2916-59-0x0000000001D70000-0x0000000001D8F000-memory.dmp
      Filesize

      124KB

    • memory/2916-71-0x0000000000400000-0x000000000041F000-memory.dmp
      Filesize

      124KB