Analysis

  • max time kernel
    41s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 07:45

General

  • Target

    a9596f49c22a20feefbc493aa904a1b8ff69ae5e103dfbcc76777d59d52b4277.dll

  • Size

    392KB

  • MD5

    09b7588eeb9f9ffced2f205b1547c477

  • SHA1

    44633ba9849b1f2f03bd08f0844bf11f0cd4a9d9

  • SHA256

    a9596f49c22a20feefbc493aa904a1b8ff69ae5e103dfbcc76777d59d52b4277

  • SHA512

    499d2501388ac14982dceac375804fc305170fd73482353b8e5810ca6e9670a28a3b25fb5365d2ff337fd74308195053bf7963e61ebff65878f6236cdaf6601b

  • SSDEEP

    6144:JCIGPj038tAgFMldWNX+IxeQ37G28Ua1jflNiSGjVaNqzMDVZPdrNkUN:Cj038t/FMldW4IxeQ37JaplcsVRdm2

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 1 IoCs
  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9596f49c22a20feefbc493aa904a1b8ff69ae5e103dfbcc76777d59d52b4277.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9596f49c22a20feefbc493aa904a1b8ff69ae5e103dfbcc76777d59d52b4277.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1524
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1524 -s 104
          4⤵
          • Program crash
          PID:1160
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 228
        3⤵
        • Program crash
        PID:268

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\rundll32mgr.exe

    Filesize

    226KB

    MD5

    0443f220bbe647a9f012ef8be7826915

    SHA1

    a4d35c05941e01bfda5e6aebf8696bbe1cbe57eb

    SHA256

    943d8c1c80dda309f3b9b2af6d0cc311b00acabc0b9016c37359e5c20aa4ab90

    SHA512

    a09035c929aace492303ba04bc00add212569d1d6dc37f41b814ebb295cb749e0cb7543ceea79c8a39f31e8e14a6bbd9519fac34d42070ed031b911adfebebd9

  • \Users\Admin\AppData\Local\Temp\~TMA832.tmp

    Filesize

    1.2MB

    MD5

    d124f55b9393c976963407dff51ffa79

    SHA1

    2c7bbedd79791bfb866898c85b504186db610b5d

    SHA256

    ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

    SHA512

    278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

  • \Users\Admin\AppData\Local\Temp\~TMA8CF.tmp

    Filesize

    1.1MB

    MD5

    9b98d47916ead4f69ef51b56b0c2323c

    SHA1

    290a80b4ded0efc0fd00816f373fcea81a521330

    SHA256

    96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

    SHA512

    68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    226KB

    MD5

    0443f220bbe647a9f012ef8be7826915

    SHA1

    a4d35c05941e01bfda5e6aebf8696bbe1cbe57eb

    SHA256

    943d8c1c80dda309f3b9b2af6d0cc311b00acabc0b9016c37359e5c20aa4ab90

    SHA512

    a09035c929aace492303ba04bc00add212569d1d6dc37f41b814ebb295cb749e0cb7543ceea79c8a39f31e8e14a6bbd9519fac34d42070ed031b911adfebebd9

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    226KB

    MD5

    0443f220bbe647a9f012ef8be7826915

    SHA1

    a4d35c05941e01bfda5e6aebf8696bbe1cbe57eb

    SHA256

    943d8c1c80dda309f3b9b2af6d0cc311b00acabc0b9016c37359e5c20aa4ab90

    SHA512

    a09035c929aace492303ba04bc00add212569d1d6dc37f41b814ebb295cb749e0cb7543ceea79c8a39f31e8e14a6bbd9519fac34d42070ed031b911adfebebd9

  • memory/1524-63-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/1524-64-0x00000000779D0000-0x0000000077B50000-memory.dmp

    Filesize

    1.5MB

  • memory/2036-55-0x0000000076531000-0x0000000076533000-memory.dmp

    Filesize

    8KB

  • memory/2036-65-0x0000000010000000-0x0000000010067000-memory.dmp

    Filesize

    412KB

  • memory/2036-66-0x00000000002B0000-0x0000000000367000-memory.dmp

    Filesize

    732KB