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Analysis

  • max time kernel
    145s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2024, 01:17

General

  • Target

    805211cc2830d787e6dcf1845bf5c7da421a25cd7cf93197aaa470166b9d2b45.exe

  • Size

    352KB

  • MD5

    9d803a16241a6009ddd3c593d8c06bde

  • SHA1

    3231386f0d741c36cc2f83f6b383540045648824

  • SHA256

    805211cc2830d787e6dcf1845bf5c7da421a25cd7cf93197aaa470166b9d2b45

  • SHA512

    e652d56441bece92df2a85fd8644ecff2b30ff7ba5554f4f4e651331a793fa2829ba80cf414fa77e91e1a5a130755bc1f964217c653885559c5ce729cbad2d30

  • SSDEEP

    6144:RIs9OKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPFsEPAsKCe8i:oKofHfHTXQLzgvnzHPowYbvrjD/L7QPs

Score
9/10

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 11 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 9 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 6 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Program crash 1 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\805211cc2830d787e6dcf1845bf5c7da421a25cd7cf93197aaa470166b9d2b45.exe
    "C:\Users\Admin\AppData\Local\Temp\805211cc2830d787e6dcf1845bf5c7da421a25cd7cf93197aaa470166b9d2b45.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2556
      • C:\Windows\SysWOW64\smnss.exe
        C:\Windows\system32\smnss.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Maps connected drives based on registry
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2608
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2608 -s 1016
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:2008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\satornas.dll

    Filesize

    183B

    MD5

    8c67ad807042da392016c94f7db67188

    SHA1

    65c1e6eaf6e35b31bffb892aaedb6c4f536ac5f2

    SHA256

    8b94907e90006723c9690427294342c981652a8bd6024be333acb92eb5f6c4b1

    SHA512

    a1c1c8b06accd43cb2c76fe79ff775b5530705394d901c2eb38e58a222116e5b8efcfc39b40b586e4211c13738628c284ec9a6e18c545827fe7e884db08e28a5

  • C:\Windows\SysWOW64\smnss.exe

    Filesize

    352KB

    MD5

    699665e745b31a8111e7216a9802130d

    SHA1

    26a23c6c27ec86f6761eff11b0e6eefc9368d5e8

    SHA256

    1d32a24b14fb4d82559fe8c0e1754bb81d619525897bd8d1fc31275357f96881

    SHA512

    80af476d9470daf722387438f8b7a4c558bcda4a4d54de6ba50b6ad55fd80ef0419120e4362c93c2b41584fe6cfdf0efa413de4e9aa8380440e037044a87673b

  • \Windows\SysWOW64\ctfmen.exe

    Filesize

    4KB

    MD5

    3cac9e93aaf34a366eeab1dcf7b36296

    SHA1

    b611c942ea5137e156890e23b63723f810678a4a

    SHA256

    62df693a355eb2db747ba85f463c06df6c6f3c058bc89c07f06503ed42dc3671

    SHA512

    149dac2ee79c07f78a41c13978e65883dcd43b393ddffd7b7586d03d39a93845b24de9dc35136759babd06fa6e5499981308d9e082d94b850325f00a758a5e71

  • \Windows\SysWOW64\shervans.dll

    Filesize

    8KB

    MD5

    487a6032a345393001a4afd5ad3aa875

    SHA1

    4d378118802b7f24c9634b9b0c8f8fbe4462f6d2

    SHA256

    caef47cf219c07023db30a661b42aed6e5ffa047b64ed8979120a1c43f0d82ae

    SHA512

    b02abdf407fca3abb72173ed69851bd074f250c62bceaaf4adc17369ac03037246191c5121e62882661e3242a4f36d024f629c8478ea274c787e331ffdfa7fa5

  • memory/2556-31-0x0000000000520000-0x0000000000580000-memory.dmp

    Filesize

    384KB

  • memory/2556-26-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2608-45-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/2608-42-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2608-35-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/2744-25-0x0000000000340000-0x0000000000349000-memory.dmp

    Filesize

    36KB

  • memory/2744-28-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/2744-27-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2744-0-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/2744-18-0x0000000000340000-0x0000000000349000-memory.dmp

    Filesize

    36KB

  • memory/2744-16-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB