Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2022 21:22

General

  • Target

    376e4ad5272438890f0120699bfec0921a7a953b7fb578997cd27cea691f0e4e.dll

  • Size

    828KB

  • MD5

    07c5bc9c3b14aa979213ceeb26d2fecc

  • SHA1

    3fc83525fe1361726d976b4c4c1976d0d7fd24ab

  • SHA256

    376e4ad5272438890f0120699bfec0921a7a953b7fb578997cd27cea691f0e4e

  • SHA512

    ae9512bde5be4d4a7cf00390e1bfe7db33f69518238dbf81a708bf22c2c2ddf0aa0037bfa84baa59da02ee38a420c29bc8bf54f41c44555bce762578b5648198

  • SSDEEP

    24576:mzb1MlCKUQyUmjtczu6Prs9pgWoopooK9kwPq9f5cP:mzbKsUmjtcdPGgIwPq9f6P

Malware Config

Signatures

  • Ramnit

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

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

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

  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\376e4ad5272438890f0120699bfec0921a7a953b7fb578997cd27cea691f0e4e.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:900
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\376e4ad5272438890f0120699bfec0921a7a953b7fb578997cd27cea691f0e4e.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1416
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:996

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\SysWOW64\rundll32mgr.exe

    Filesize

    169KB

    MD5

    335f0aeb047ac7782090828b5d4fa10e

    SHA1

    73355b1c843bec7be94b0a39efb5ff3b1b4ee547

    SHA256

    6df4c841c30d414cfee93573963036abfd669627081705c6a0d9e65fd6846f53

    SHA512

    635d1e473a0f2cebad020f80e211b55bcb12742ddde1e65db182b077c8873f639b491ab8d11a6781095cf16729e03f93696514de72b58efad8157fad3ff399f1

  • \Users\Admin\AppData\Local\Temp\~TM7AF.tmp

    Filesize

    1.2MB

    MD5

    d124f55b9393c976963407dff51ffa79

    SHA1

    2c7bbedd79791bfb866898c85b504186db610b5d

    SHA256

    ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

    SHA512

    278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

  • \Users\Admin\AppData\Local\Temp\~TM84C.tmp

    Filesize

    1.1MB

    MD5

    9b98d47916ead4f69ef51b56b0c2323c

    SHA1

    290a80b4ded0efc0fd00816f373fcea81a521330

    SHA256

    96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

    SHA512

    68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    169KB

    MD5

    335f0aeb047ac7782090828b5d4fa10e

    SHA1

    73355b1c843bec7be94b0a39efb5ff3b1b4ee547

    SHA256

    6df4c841c30d414cfee93573963036abfd669627081705c6a0d9e65fd6846f53

    SHA512

    635d1e473a0f2cebad020f80e211b55bcb12742ddde1e65db182b077c8873f639b491ab8d11a6781095cf16729e03f93696514de72b58efad8157fad3ff399f1

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    169KB

    MD5

    335f0aeb047ac7782090828b5d4fa10e

    SHA1

    73355b1c843bec7be94b0a39efb5ff3b1b4ee547

    SHA256

    6df4c841c30d414cfee93573963036abfd669627081705c6a0d9e65fd6846f53

    SHA512

    635d1e473a0f2cebad020f80e211b55bcb12742ddde1e65db182b077c8873f639b491ab8d11a6781095cf16729e03f93696514de72b58efad8157fad3ff399f1

  • memory/996-63-0x0000000000360000-0x00000000003CB000-memory.dmp

    Filesize

    428KB

  • memory/996-64-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/996-65-0x00000000774D0000-0x0000000077650000-memory.dmp

    Filesize

    1.5MB

  • memory/1416-55-0x00000000762D1000-0x00000000762D3000-memory.dmp

    Filesize

    8KB

  • memory/1416-66-0x0000000005000000-0x00000000050D4000-memory.dmp

    Filesize

    848KB