Analysis

  • max time kernel
    15s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2024 20:47

General

  • Target

    2a1ca62311fc416144f081e1b79fcb1cca40eb6da24de9916d6f90095440bf79N.dll

  • Size

    240KB

  • MD5

    4c7e8e6b0b27576220989a77779b20c0

  • SHA1

    3bfb438b0b65340eb5d86b6799cf8a87fc4215c6

  • SHA256

    2a1ca62311fc416144f081e1b79fcb1cca40eb6da24de9916d6f90095440bf79

  • SHA512

    c8540474d1029d61328d9cafec601bf33672f84fd2cfb9c3940a036346a1294fc2ac9142b15c4d9d79fcfc38ed7b222eacb005321c966e6137920ccdd3309538

  • SSDEEP

    3072:43Z4B+8x2fCFIpcLy1n5lB7GrDWwqrlK4tb1sA622USAz3y184D:43KB+8A6FecLq1BwytF6DYC11D

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 3 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 21 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2a1ca62311fc416144f081e1b79fcb1cca40eb6da24de9916d6f90095440bf79N.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2404
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\2a1ca62311fc416144f081e1b79fcb1cca40eb6da24de9916d6f90095440bf79N.dll
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2320
      • C:\Windows\SysWOW64\regsvr32mgr.exe
        C:\Windows\SysWOW64\regsvr32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\~TMA19C.tmp

    Filesize

    1.2MB

    MD5

    d124f55b9393c976963407dff51ffa79

    SHA1

    2c7bbedd79791bfb866898c85b504186db610b5d

    SHA256

    ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

    SHA512

    278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

  • \Users\Admin\AppData\Local\Temp\~TMA1BC.tmp

    Filesize

    1.1MB

    MD5

    9b98d47916ead4f69ef51b56b0c2323c

    SHA1

    290a80b4ded0efc0fd00816f373fcea81a521330

    SHA256

    96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

    SHA512

    68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

  • \Windows\SysWOW64\regsvr32mgr.exe

    Filesize

    97KB

    MD5

    ef5dc2521333fb418bd5518f1db3fd08

    SHA1

    3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

    SHA256

    75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

    SHA512

    8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

  • memory/1620-10-0x0000000000400000-0x000000000042C1D8-memory.dmp

    Filesize

    176KB

  • memory/1620-9-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/1620-14-0x0000000000400000-0x000000000042C1D8-memory.dmp

    Filesize

    176KB

  • memory/1620-20-0x0000000000400000-0x000000000042C1D8-memory.dmp

    Filesize

    176KB

  • memory/1620-19-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/2320-1-0x0000000010000000-0x000000001003D000-memory.dmp

    Filesize

    244KB