Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 00:49

General

  • Target

    8b11e2aa748a26f8e41a484e66d6438645a81183722833c3f079e6ad4a5edcdc.exe

  • Size

    24KB

  • MD5

    9a70f898baa94812d9810595c09c413b

  • SHA1

    11b8602b99b7ba71d834c9a16aef5209836cf718

  • SHA256

    8b11e2aa748a26f8e41a484e66d6438645a81183722833c3f079e6ad4a5edcdc

  • SHA512

    a2f3a231b2c4e66855abe8a5c58050c2f3fbf6b8dbbf01bdbdb17008e8d0ee73268b8510a2feb484ce47637ae25a60812d4a748c6952484623abaee1af7ecaf7

  • SSDEEP

    768:GvEwVMWLfB0DXrUk1T6y/vLEtMhv+bMauUrdEMzV:mVxLfw1TGyv+XbpEQ

Score
8/10

Malware Config

Signatures

  • Possible privilege escalation attempt 6 IoCs
  • Deletes itself 1 IoCs
  • Modifies file permissions 1 TTPs 6 IoCs
  • Drops file in System32 directory 10 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b11e2aa748a26f8e41a484e66d6438645a81183722833c3f079e6ad4a5edcdc.exe
    "C:\Users\Admin\AppData\Local\Temp\8b11e2aa748a26f8e41a484e66d6438645a81183722833c3f079e6ad4a5edcdc.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:816
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 2.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1352
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c takeown /f "C:\Windows\syswow64"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1752
        • C:\Windows\SysWOW64\takeown.exe
          takeown /f "C:\Windows\syswow64"
          4⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          • Suspicious use of AdjustPrivilegeToken
          PID:1544
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Windows\syswow64" /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1592
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 2.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:908
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c takeown /f "C:\Windows\syswow64"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:592
        • C:\Windows\SysWOW64\takeown.exe
          takeown /f "C:\Windows\syswow64"
          4⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:588
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Windows\syswow64" /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1920
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 2.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1052
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c takeown /f "C:\Windows\syswow64"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1000
        • C:\Windows\SysWOW64\takeown.exe
          takeown /f "C:\Windows\syswow64"
          4⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:1800
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Windows\syswow64" /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:556
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im "cstrike-online.exe"
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1672
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 1.bat
      2⤵
      • Deletes itself
      PID:1736

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\1.bat

    Filesize

    253B

    MD5

    9df09e9265cd1e4cc651f52b9aa4c1c1

    SHA1

    9a609c00facd857bb159325ca8b100939bdd2073

    SHA256

    7016477d097a69d90ddf1c581c54290e7514b00f2883f51107cebf2937f3d93f

    SHA512

    12bded1d9cf3fd654223b53cc064ab3124e810e0b1850c85d4d87f98cef9f26a1623cb9bce8516f2cd3216f9aed7e38d30797a76c869850bb795668162c38911

  • C:\Users\Admin\AppData\Local\Temp\2.bat

    Filesize

    110B

    MD5

    521e37256443e6b3f2281f217476bf79

    SHA1

    81f0e2b65605f070782cbe241569c6b9a25bb9dc

    SHA256

    79ae97b29c3a714fa32b14c282716f1378ad8de73d6a6d954fdd7e1270bc411f

    SHA512

    23096a5eee45c7f2b278cf9385a0ea91b86c01332a096e56f1c8de336ca0bba77e0b1dbb6f2197b5c6a91c2ca093df356026c6452e4a022db79a6b555cb39025

  • C:\Users\Admin\AppData\Local\Temp\2.bat

    Filesize

    110B

    MD5

    521e37256443e6b3f2281f217476bf79

    SHA1

    81f0e2b65605f070782cbe241569c6b9a25bb9dc

    SHA256

    79ae97b29c3a714fa32b14c282716f1378ad8de73d6a6d954fdd7e1270bc411f

    SHA512

    23096a5eee45c7f2b278cf9385a0ea91b86c01332a096e56f1c8de336ca0bba77e0b1dbb6f2197b5c6a91c2ca093df356026c6452e4a022db79a6b555cb39025

  • C:\Users\Admin\AppData\Local\Temp\2.bat

    Filesize

    110B

    MD5

    521e37256443e6b3f2281f217476bf79

    SHA1

    81f0e2b65605f070782cbe241569c6b9a25bb9dc

    SHA256

    79ae97b29c3a714fa32b14c282716f1378ad8de73d6a6d954fdd7e1270bc411f

    SHA512

    23096a5eee45c7f2b278cf9385a0ea91b86c01332a096e56f1c8de336ca0bba77e0b1dbb6f2197b5c6a91c2ca093df356026c6452e4a022db79a6b555cb39025

  • C:\Windows\SysWOW64\dllcache\iphlpapi.dll

    Filesize

    101KB

    MD5

    1c4ff19e9ab12f56c31b2e9cfd4fa035

    SHA1

    c075bc7e3674cd0a56bc29ea612c403562c370d4

    SHA256

    64b748d433fc03549cce0d069df2da23198124fa087948df7947d82b51d42791

    SHA512

    b9c9cbfbbe2e89c963531cad0351ed666482d99957e7cca20bd5af9320f89e5f83f0e89788d1f9a05418a65f305eba89fdc0294e24731394aa23a0cb383fc87d

  • C:\Windows\SysWOW64\dllcache\rasadhlp.dll

    Filesize

    11KB

    MD5

    356bcdd2693b21c9699cee79696ddbbd

    SHA1

    fbcd89dba31cab0a1e60f1a550163b7b1118825a

    SHA256

    038c4659168dbe965511c016fec4dbe3beab157c39c7e4c37c2a0e3ae013cad4

    SHA512

    58fb6aa609c2dee9eaa91c35e28ef95fb6a6001c35a91eb766281906d188550736d16ee401fd5bcd8fcece91e836133ad5212a676e4c88c62714f21c1695d52f

  • C:\Windows\SysWOW64\iphlpapi.dll

    Filesize

    101KB

    MD5

    1c4ff19e9ab12f56c31b2e9cfd4fa035

    SHA1

    c075bc7e3674cd0a56bc29ea612c403562c370d4

    SHA256

    64b748d433fc03549cce0d069df2da23198124fa087948df7947d82b51d42791

    SHA512

    b9c9cbfbbe2e89c963531cad0351ed666482d99957e7cca20bd5af9320f89e5f83f0e89788d1f9a05418a65f305eba89fdc0294e24731394aa23a0cb383fc87d

  • C:\Windows\SysWOW64\rasadhlp.dll

    Filesize

    11KB

    MD5

    356bcdd2693b21c9699cee79696ddbbd

    SHA1

    fbcd89dba31cab0a1e60f1a550163b7b1118825a

    SHA256

    038c4659168dbe965511c016fec4dbe3beab157c39c7e4c37c2a0e3ae013cad4

    SHA512

    58fb6aa609c2dee9eaa91c35e28ef95fb6a6001c35a91eb766281906d188550736d16ee401fd5bcd8fcece91e836133ad5212a676e4c88c62714f21c1695d52f

  • memory/556-77-0x0000000000000000-mapping.dmp

  • memory/588-66-0x0000000000000000-mapping.dmp

  • memory/592-65-0x0000000000000000-mapping.dmp

  • memory/816-54-0x0000000076711000-0x0000000076713000-memory.dmp

    Filesize

    8KB

  • memory/816-61-0x0000000074D31000-0x0000000074D33000-memory.dmp

    Filesize

    8KB

  • memory/816-60-0x0000000074EE1000-0x0000000074EE3000-memory.dmp

    Filesize

    8KB

  • memory/908-63-0x0000000000000000-mapping.dmp

  • memory/1000-75-0x0000000000000000-mapping.dmp

  • memory/1052-73-0x0000000000000000-mapping.dmp

  • memory/1352-55-0x0000000000000000-mapping.dmp

  • memory/1544-58-0x0000000000000000-mapping.dmp

  • memory/1592-59-0x0000000000000000-mapping.dmp

  • memory/1672-83-0x0000000000000000-mapping.dmp

  • memory/1736-84-0x0000000000000000-mapping.dmp

  • memory/1752-57-0x0000000000000000-mapping.dmp

  • memory/1800-76-0x0000000000000000-mapping.dmp

  • memory/1920-67-0x0000000000000000-mapping.dmp