Analysis

  • max time kernel
    140s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28-01-2024 08:17

General

  • Target

    7c9dc9f5c21116aa751c09e3a7f9c190.exe

  • Size

    50KB

  • MD5

    7c9dc9f5c21116aa751c09e3a7f9c190

  • SHA1

    fc5a13b11bda2f9f3b9ba40af6f623c0a4ba19fe

  • SHA256

    262c3aa7924dbf86e0c1fa4950c8317ffcaec961ece8a59b568e354456eea795

  • SHA512

    9dc444910de2f511cfcc26ded80bf33f8bae7177b94dc9fbe3f8c003a70f124eb9c9bea20c9a152e9d5a1169648cdd35dfd2b811165db6aa25d3c2b8c4a266dd

  • SSDEEP

    768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+IOgHdQ7o2tIhA7O9M1:s9Z3KcR4mjD9r8226+IO02tINMwuCI

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 4 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c9dc9f5c21116aa751c09e3a7f9c190.exe
    "C:\Users\Admin\AppData\Local\Temp\7c9dc9f5c21116aa751c09e3a7f9c190.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3036
    • C:\Users\Admin\AppData\Local\Temp\Udvr1iywfvuniXu.exe
      C:\Users\Admin\AppData\Local\Temp\Udvr1iywfvuniXu.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2096
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2120

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    f91413eab2c808077a40d82c07882ee7

    SHA1

    9985e2d510647dfc598bebf04ff94d108cc644f6

    SHA256

    58a4cca49dbe9dddbeb9d1ca0aac674a903eb99720e5caf61cf8334327b27700

    SHA512

    22a17a4b36ea34734c052d1dde3e8f98c84d61317fc1debeb48bb1e8cc83bd1cfa12d04fb9cfde6bdbd16d36694e3bdda714c29043ed8f23d8632e33e2f7af3c

  • C:\Users\Admin\AppData\Local\Temp\CabF10.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarF23.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • C:\Windows\CTS.exe

    Filesize

    35KB

    MD5

    93e5f18caebd8d4a2c893e40e5f38232

    SHA1

    fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

    SHA256

    a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

    SHA512

    986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

  • \Users\Admin\AppData\Local\Temp\Udvr1iywfvuniXu.exe

    Filesize

    15KB

    MD5

    92f9de5aaf4021b73961e14303746f95

    SHA1

    331b792e347ebaf6b6b4c9ac65d742061e1a9f0a

    SHA256

    13c921999e5ff273007a610a8521bbc77d884b41d9cbbd41e045b3497909659c

    SHA512

    314749d46a3584213e55c7030e087e06f1e5bc5fbb8f99210a4e3014b9f44f3be7e791f48c570dd0abaf73584322ebb6be0d2ea5dbbfe343245cced22b172225

  • memory/2096-27-0x0000000000370000-0x00000000003B0000-memory.dmp

    Filesize

    256KB

  • memory/2096-26-0x0000000074C00000-0x00000000751AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2096-121-0x0000000074C00000-0x00000000751AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2120-28-0x0000000000C40000-0x0000000000C57000-memory.dmp

    Filesize

    92KB

  • memory/3036-0-0x00000000008D0000-0x00000000008E7000-memory.dmp

    Filesize

    92KB

  • memory/3036-10-0x00000000008D0000-0x00000000008E7000-memory.dmp

    Filesize

    92KB

  • memory/3036-12-0x0000000000070000-0x0000000000087000-memory.dmp

    Filesize

    92KB

  • memory/3036-16-0x0000000000070000-0x0000000000087000-memory.dmp

    Filesize

    92KB

  • memory/3036-124-0x0000000000070000-0x0000000000087000-memory.dmp

    Filesize

    92KB