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Analysis

  • max time kernel
    140s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25/02/2024, 05:09

General

  • Target

    a2f9230b9f3cf5d35621bee925a57057.exe

  • Size

    393KB

  • MD5

    a2f9230b9f3cf5d35621bee925a57057

  • SHA1

    4fd726a244348fafe97905a67e3890f8cce605e0

  • SHA256

    5717bf456130fadb8c206e6affd7ef8ae896b4228a69f9e3b7cd1da2f90be2b1

  • SHA512

    e2f3f5d19eee210c1fe04102cd2b01f6a8d388e5c1c47d16c4a952837c4f842867f0e068d4b9fa9c9d09bcc85d4e2b6f19a0fc2131aff607f9923896da7a4f5d

  • SSDEEP

    6144:hGyGar3rO+xX/veMg1r0O4N0hvsrSGbijtL1wtAfmYLfk:h3pXOcvWMg1ro6hvRYijp7fLg

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 5 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a2f9230b9f3cf5d35621bee925a57057.exe
    "C:\Users\Admin\AppData\Local\Temp\a2f9230b9f3cf5d35621bee925a57057.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:2168
    • C:\Users\Admin\AppData\Local\Temp\iTmD2lItSZJyOoK.exe
      C:\Users\Admin\AppData\Local\Temp\iTmD2lItSZJyOoK.exe
      2⤵
      • Executes dropped EXE
      PID:1616
    • 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:2740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\iTmD2lItSZJyOoK.exe

    Filesize

    393KB

    MD5

    a00f46ca4c0855722835cc576bb82151

    SHA1

    c0576ff0800623fbd23f986cf5b00a000479cf93

    SHA256

    df0e6f4e8669ceaaae4c448c0e771a55e60f291857d226649f613f72acc3cf37

    SHA512

    d8325f914ab7f9119c500e9f59a01f1128f72b53df6281b41dbc0dfd66fc3efbee0194a0c7501c39f4f65b08a5fefe1da87a4844cf5f973497d587afe613c528

  • C:\Windows\CTS.exe

    Filesize

    59KB

    MD5

    5efd390d5f95c8191f5ac33c4db4b143

    SHA1

    42d81b118815361daa3007f1a40f1576e9a9e0bc

    SHA256

    6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

    SHA512

    720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

  • \Users\Admin\AppData\Local\Temp\iTmD2lItSZJyOoK.exe

    Filesize

    334KB

    MD5

    f310d4e936b68a5d76b7b808507e99f9

    SHA1

    6dccf493508f97212688413bec28f86befbff8e2

    SHA256

    58b7e175725ddf68a7a6c891889daaa3b7d4f90c14bfcff287cb3336cbd7da60

    SHA512

    daead56dfdd7b4a7a8fabdc6e12144273aae244aa90817d76281e5a7414e3f07ca2761f481bda91a47fc3c1c911ff1783e7421e566e3b3fc59b443de141d9e5d

  • memory/2168-0-0x00000000008A0000-0x00000000008B7000-memory.dmp

    Filesize

    92KB

  • memory/2168-8-0x0000000000280000-0x0000000000297000-memory.dmp

    Filesize

    92KB

  • memory/2168-12-0x00000000008A0000-0x00000000008B7000-memory.dmp

    Filesize

    92KB

  • memory/2740-15-0x0000000000280000-0x0000000000297000-memory.dmp

    Filesize

    92KB