Analysis

  • max time kernel
    119s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2023 13:06

General

  • Target

    70ceb0c11838add0cfccb2efcdc8f62b.exe

  • Size

    5.4MB

  • MD5

    70ceb0c11838add0cfccb2efcdc8f62b

  • SHA1

    6522e16406c85f47ead1c77315a538ee3b6294bf

  • SHA256

    fa27a3c569f5a56329af800f665eb1db353fb39c93c94446b617936f6cfd5fec

  • SHA512

    e82458c1ae70acd3c618b608e65d0332947a132e46e7f4f972204ab6718fc25ef9986f17669259cccf44006ce5f53f4cc543d01e9abb4ced1de6d3e0cbce9447

  • SSDEEP

    98304:FTX6fzwPIlCtCmZukBTrnFuaUz823LFnGk35zieIOWooX/HH9TcHk/8t3:94zwPIZBUrnFhUz823JnGk35FO9X/Hdf

Malware Config

Signatures

  • Growtopia

    Growtopa is an opensource modular stealer written in C#.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • VMProtect packed file 4 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Modifies system certificate store 2 TTPs 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\70ceb0c11838add0cfccb2efcdc8f62b.exe
    "C:\Users\Admin\AppData\Local\Temp\70ceb0c11838add0cfccb2efcdc8f62b.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2052
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\MAC.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell get-NetAdapter
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1904
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\GenReg.exe" [29548]--[441325395]--[14774,14774c,14774w,14774wc]--[330994046,330994046c]
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Users\Admin\AppData\Local\Temp\GenReg.exe
        C:\Users\Admin\AppData\Local\Temp\GenReg.exe [29548]--[441325395]--[14774,14774c,14774w,14774wc]--[330994046,330994046c]
        3⤵
        • Executes dropped EXE
        PID:1228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\AAP-Bypass.reg

    Filesize

    394B

    MD5

    f60fd05642efe004aa09465a3c5aa630

    SHA1

    df945e3828b74df824cd3404c85b90a5d6cf9a66

    SHA256

    7edd0c0c041eec561216724961024f7657bf290b2da964441404dceb5b79bef3

    SHA512

    f0ae9b293462eb59de086ebcee261e1a091725503b029507402fa8f5f2b323d43008ecc9314f340127eb0eee14431c64f85b2c6ce24d3b48eb32a6a9e566732f

  • C:\Users\Admin\AppData\Local\Temp\CabB29F.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

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

    Filesize

    42B

    MD5

    56120ea7d97e691243935b98d32f4b65

    SHA1

    f89f6249a946882410de06765ec07e11f2608177

    SHA256

    1d6a29ec8b4f624b3246450c2a34ae1a8b3e35cdc7f3fa86a680e14169e01a67

    SHA512

    4cda70d6283fc48105a64c157c50fbe61bc5c77aa0f28e8c1176943cfdfa4345df77f09573d49ff896830cfc8315547a453a7bcbe68c00dd140b99ead94c8b5b

  • C:\Users\Admin\AppData\Local\Temp\TarB2C1.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • \Users\Admin\AppData\Local\Temp\GenReg.exe

    Filesize

    9KB

    MD5

    511b735aafc5cfcfd307b350b6099c32

    SHA1

    68e0c6c6c504a45ad491150017fbfcc1e1c4f91d

    SHA256

    51c145f8bcc871263f1ceb7a85ed43915aae7b79aa175817c5d8c6edfb712ace

    SHA512

    af347e6623849c452663066a919db1d98aa28b4f4f7149a2b1209e02d56b9e79658cbb02416dd0a0bce40c622308f8244457c1056fa8c4d06f189800867bf1df

  • memory/1228-130-0x0000000073AA0000-0x000000007418E000-memory.dmp

    Filesize

    6.9MB

  • memory/1228-128-0x0000000004BC0000-0x0000000004C00000-memory.dmp

    Filesize

    256KB

  • memory/1228-127-0x0000000073AA0000-0x000000007418E000-memory.dmp

    Filesize

    6.9MB

  • memory/1228-126-0x0000000000C40000-0x0000000000C48000-memory.dmp

    Filesize

    32KB

  • memory/1904-112-0x0000000073BE0000-0x000000007418B000-memory.dmp

    Filesize

    5.7MB

  • memory/1904-114-0x00000000022C0000-0x0000000002300000-memory.dmp

    Filesize

    256KB

  • memory/1904-113-0x0000000073BE0000-0x000000007418B000-memory.dmp

    Filesize

    5.7MB

  • memory/1904-115-0x00000000022C0000-0x0000000002300000-memory.dmp

    Filesize

    256KB

  • memory/1904-116-0x0000000073BE0000-0x000000007418B000-memory.dmp

    Filesize

    5.7MB

  • memory/2052-0-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2052-13-0x00000000000D0000-0x000000000097C000-memory.dmp

    Filesize

    8.7MB

  • memory/2052-8-0x0000000077DA0000-0x0000000077DA1000-memory.dmp

    Filesize

    4KB

  • memory/2052-5-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2052-6-0x00000000000D0000-0x000000000097C000-memory.dmp

    Filesize

    8.7MB

  • memory/2052-2-0x00000000000D0000-0x000000000097C000-memory.dmp

    Filesize

    8.7MB

  • memory/2052-3-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2052-132-0x00000000000D0000-0x000000000097C000-memory.dmp

    Filesize

    8.7MB