Analysis

  • max time kernel
    120s
  • max time network
    94s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 06:45

General

  • Target

    13f3780e31e32b00c1abc4dc3a8d48dc1fac5360c0f35bdc60630924eda3644cN.dll

  • Size

    284KB

  • MD5

    7c8f7bde54f1da15c55dc2b7c2f3ce10

  • SHA1

    7292ab49ffe7f7ff9184c42736fcfe5e5b4ad8fd

  • SHA256

    13f3780e31e32b00c1abc4dc3a8d48dc1fac5360c0f35bdc60630924eda3644c

  • SHA512

    1aead191699e676348b9ab3c3914f42bd2364bd2eb07ff831b80a8f1d66da0d579741777c00b54dafeaf9cf34d5b6a2c0c8f70fb1e94f19e78358b6ab7200663

  • SSDEEP

    6144:dMqWfdNAF0/p8O456wg+RFxj3OWmgvWruTyOQMYM:GqWfdNAqpV45a+FxLmb5MYM

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 8 IoCs
  • Drops file in System32 directory 4 IoCs
  • UPX packed file 12 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of UnmapMainImage 4 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\13f3780e31e32b00c1abc4dc3a8d48dc1fac5360c0f35bdc60630924eda3644cN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\13f3780e31e32b00c1abc4dc3a8d48dc1fac5360c0f35bdc60630924eda3644cN.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:484
        • C:\Windows\SysWOW64\rundll32mgrmgr.exe
          C:\Windows\SysWOW64\rundll32mgrmgr.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:2436
          • C:\Program Files (x86)\Microsoft\WaterMark.exe
            "C:\Program Files (x86)\Microsoft\WaterMark.exe"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of UnmapMainImage
            • Suspicious use of WriteProcessMemory
            PID:2944
            • C:\Windows\SysWOW64\svchost.exe
              C:\Windows\system32\svchost.exe
              6⤵
              • System Location Discovery: System Language Discovery
              PID:2640
            • C:\Windows\SysWOW64\svchost.exe
              C:\Windows\system32\svchost.exe
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:376
        • C:\Program Files (x86)\Microsoft\WaterMark.exe
          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:2664
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
            • Modifies WinLogon for persistence
            • Drops file in System32 directory
            • Drops file in Program Files directory
            • System Location Discovery: System Language Discovery
            PID:2672
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:2980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\epl-v10.html

    Filesize

    259KB

    MD5

    5622289a8695414fa195251ff341089d

    SHA1

    553f536347c3169eb8c3a3b909b1cddb2bd3220a

    SHA256

    25d1b78b4e819bf3f3862b11b0619743452b00dae6a5d23bee4d43f83d24121f

    SHA512

    f42ee76ebb474144014fb3c0d34f05cdb4e160257e970e3c675a258b7ebab1d29860b5b7b74d9bf5c4d8b75d92759f34b8a917e381dd1d26f99ee4ecdd39ab97

  • C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\license.html

    Filesize

    255KB

    MD5

    6f7e07065f917e275c7fcdf4ab521b63

    SHA1

    40fce53d7e4f88c9ac26089cc1ca66e2fc021b3f

    SHA256

    a959871e48d99e28015c2d75b2c11cbc05af7cb666e22ab0978f56f2c9c90375

    SHA512

    744efc81c1465c2523402702c5541d49688918fcf084d941b99bec93578a050a9eaa6cbce749ca08a7fcc89c4626553b70cff86923dcb5b42b6c9284d3f987e7

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    249KB

    MD5

    725aad1265430294dabb34fbbdd37b60

    SHA1

    e6f02781f9dfe58ba653554d45ef027646638d41

    SHA256

    c305dd145312babc4bd84cb9b1f998f81ed90b527b52666d68add509eca1b5e7

    SHA512

    7437a4b7b9ea19267d71933ef1fb18565ecc00516dbed0b49a3b3300be824db3509aace52baa96e5d31143d8aff9ec8abb6499c620e5f5fa403f4f2c741ca1e9

  • \Windows\SysWOW64\rundll32mgrmgr.exe

    Filesize

    123KB

    MD5

    04161f533ee93611681445f8a165ed68

    SHA1

    d3f4b2bfc8b384d2602989082056751ae21b8105

    SHA256

    97e8d8fefbd8aef88875b7373e6a5ec0ff0fa02fc1b63af254d8116e6d959f81

    SHA512

    4e3ad0bd23e728966e7f0d86fda0883bb8196d9eca93c6c9633c3b786c451864fabd9f300fb7355277fb8de334c1fe5cb54b01c2ad88c3e51ad7fa221a57119f

  • memory/484-25-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/484-26-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/484-27-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/484-35-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/484-12-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/484-40-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/484-19-0x0000000000340000-0x000000000036B000-memory.dmp

    Filesize

    172KB

  • memory/484-28-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/484-34-0x0000000000360000-0x0000000000361000-memory.dmp

    Filesize

    4KB

  • memory/484-37-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2308-14-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2308-9-0x0000000010000000-0x000000001004A000-memory.dmp

    Filesize

    296KB

  • memory/2308-10-0x0000000010000000-0x000000001004A000-memory.dmp

    Filesize

    296KB

  • memory/2308-11-0x00000000001B0000-0x00000000001FB000-memory.dmp

    Filesize

    300KB

  • memory/2308-15-0x0000000077730000-0x0000000077731000-memory.dmp

    Filesize

    4KB

  • memory/2308-1-0x0000000010000000-0x000000001004A000-memory.dmp

    Filesize

    296KB

  • memory/2308-16-0x0000000000410000-0x0000000000411000-memory.dmp

    Filesize

    4KB

  • memory/2436-41-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2436-33-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/2664-69-0x0000000000370000-0x0000000000371000-memory.dmp

    Filesize

    4KB

  • memory/2664-108-0x0000000000380000-0x0000000000381000-memory.dmp

    Filesize

    4KB

  • memory/2664-151-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2664-64-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/2664-65-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2672-89-0x0000000020010000-0x0000000020022000-memory.dmp

    Filesize

    72KB

  • memory/2672-85-0x0000000020010000-0x0000000020022000-memory.dmp

    Filesize

    72KB

  • memory/2672-81-0x0000000020010000-0x0000000020022000-memory.dmp

    Filesize

    72KB

  • memory/2672-73-0x00000000000C0000-0x00000000000C1000-memory.dmp

    Filesize

    4KB

  • memory/2672-71-0x0000000020010000-0x0000000020022000-memory.dmp

    Filesize

    72KB

  • memory/2944-61-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/2944-68-0x00000000001E0000-0x00000000001E1000-memory.dmp

    Filesize

    4KB