Analysis

  • max time kernel
    118s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2023 15:21

General

  • Target

    641438944178e60b75c06f55b22d81de_JC.exe

  • Size

    532KB

  • MD5

    641438944178e60b75c06f55b22d81de

  • SHA1

    e29dff12ef0b56f909c6f288fb3150d8b854e8ea

  • SHA256

    2e3a387e987e655773651828eee37e0ee3e73022f236c8dcd5d852532f82b7cd

  • SHA512

    811d22ab07353bd91ab0d8cfd6adc78e3e3ba1509f91271f7b13a72c1bb9d788d1c571496529f7cfc78620d80522dc70461750ac6cc04708ad4098b3ca2b968d

  • SSDEEP

    12288:/mbEGosWnm8BgL0CMZXSP1+cUXT8RYEYvCzr1TBp:lsgm2ZZw1jemv1Tn

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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 7 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
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\641438944178e60b75c06f55b22d81de_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\641438944178e60b75c06f55b22d81de_JC.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:1956
    • C:\Users\Admin\AppData\Local\Temp\EyygfPM6ZQx6pzl.exe
      C:\Users\Admin\AppData\Local\Temp\EyygfPM6ZQx6pzl.exe
      2⤵
      • Executes dropped EXE
      PID:2036
    • 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:2328

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\EyygfPM6ZQx6pzl.exe

    Filesize

    447KB

    MD5

    3f461ca3e3d9da036cf1a4a06ddf4fb4

    SHA1

    15395e4b656cee3a708bc50c1094e3fa0c46802e

    SHA256

    cd8e84c1f8d1ee3a7014343e3fb236329d2b67c1ec233ea4b208d99e3f95105b

    SHA512

    d0cb3f56db648c9ee151990260a864cdcd0d508a1dafcd741d8b2ccd8f73ba29607f384a4e2752502419cfd4a41d2288d7c3ffec93925be85fc39dad9c01e7f5

  • C:\Users\Admin\AppData\Local\Temp\EyygfPM6ZQx6pzl.exe

    Filesize

    447KB

    MD5

    3f461ca3e3d9da036cf1a4a06ddf4fb4

    SHA1

    15395e4b656cee3a708bc50c1094e3fa0c46802e

    SHA256

    cd8e84c1f8d1ee3a7014343e3fb236329d2b67c1ec233ea4b208d99e3f95105b

    SHA512

    d0cb3f56db648c9ee151990260a864cdcd0d508a1dafcd741d8b2ccd8f73ba29607f384a4e2752502419cfd4a41d2288d7c3ffec93925be85fc39dad9c01e7f5

  • C:\Users\Admin\AppData\Local\Temp\EyygfPM6ZQx6pzl.exe

    Filesize

    447KB

    MD5

    3f461ca3e3d9da036cf1a4a06ddf4fb4

    SHA1

    15395e4b656cee3a708bc50c1094e3fa0c46802e

    SHA256

    cd8e84c1f8d1ee3a7014343e3fb236329d2b67c1ec233ea4b208d99e3f95105b

    SHA512

    d0cb3f56db648c9ee151990260a864cdcd0d508a1dafcd741d8b2ccd8f73ba29607f384a4e2752502419cfd4a41d2288d7c3ffec93925be85fc39dad9c01e7f5

  • C:\Windows\CTS.exe

    Filesize

    84KB

    MD5

    61e4cd6776d8367eee2470e5452bdd15

    SHA1

    ce19b517032d6cd9b201a4e74eaaf009f86d6563

    SHA256

    ff52d994f38f49789547cf1efe7c6a6535162c2ee1c405dadd229a6be1cf23a3

    SHA512

    ba6db6db02788cc9b3bbaed92fb4a47d11f9a857a00b5384ec4f5f4baa91825a6800f255f030c0ac455ab3562c321c632ab39ad4ddfcedd9530db1515fe6cd77

  • C:\Windows\CTS.exe

    Filesize

    84KB

    MD5

    61e4cd6776d8367eee2470e5452bdd15

    SHA1

    ce19b517032d6cd9b201a4e74eaaf009f86d6563

    SHA256

    ff52d994f38f49789547cf1efe7c6a6535162c2ee1c405dadd229a6be1cf23a3

    SHA512

    ba6db6db02788cc9b3bbaed92fb4a47d11f9a857a00b5384ec4f5f4baa91825a6800f255f030c0ac455ab3562c321c632ab39ad4ddfcedd9530db1515fe6cd77

  • C:\Windows\CTS.exe

    Filesize

    84KB

    MD5

    61e4cd6776d8367eee2470e5452bdd15

    SHA1

    ce19b517032d6cd9b201a4e74eaaf009f86d6563

    SHA256

    ff52d994f38f49789547cf1efe7c6a6535162c2ee1c405dadd229a6be1cf23a3

    SHA512

    ba6db6db02788cc9b3bbaed92fb4a47d11f9a857a00b5384ec4f5f4baa91825a6800f255f030c0ac455ab3562c321c632ab39ad4ddfcedd9530db1515fe6cd77

  • \Users\Admin\AppData\Local\Temp\EyygfPM6ZQx6pzl.exe

    Filesize

    447KB

    MD5

    3f461ca3e3d9da036cf1a4a06ddf4fb4

    SHA1

    15395e4b656cee3a708bc50c1094e3fa0c46802e

    SHA256

    cd8e84c1f8d1ee3a7014343e3fb236329d2b67c1ec233ea4b208d99e3f95105b

    SHA512

    d0cb3f56db648c9ee151990260a864cdcd0d508a1dafcd741d8b2ccd8f73ba29607f384a4e2752502419cfd4a41d2288d7c3ffec93925be85fc39dad9c01e7f5

  • \Users\Admin\AppData\Local\Temp\EyygfPM6ZQx6pzl.exe

    Filesize

    447KB

    MD5

    3f461ca3e3d9da036cf1a4a06ddf4fb4

    SHA1

    15395e4b656cee3a708bc50c1094e3fa0c46802e

    SHA256

    cd8e84c1f8d1ee3a7014343e3fb236329d2b67c1ec233ea4b208d99e3f95105b

    SHA512

    d0cb3f56db648c9ee151990260a864cdcd0d508a1dafcd741d8b2ccd8f73ba29607f384a4e2752502419cfd4a41d2288d7c3ffec93925be85fc39dad9c01e7f5

  • memory/1956-0-0x0000000000D20000-0x0000000000D39000-memory.dmp

    Filesize

    100KB

  • memory/1956-11-0x0000000000180000-0x0000000000199000-memory.dmp

    Filesize

    100KB

  • memory/1956-16-0x0000000000D20000-0x0000000000D39000-memory.dmp

    Filesize

    100KB

  • memory/2328-20-0x0000000000930000-0x0000000000949000-memory.dmp

    Filesize

    100KB