Analysis

  • max time kernel
    153s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    06-02-2022 08:53

General

  • Target

    c4e4903a423f9d0f542a8a4ba8ba9042ecfca424c4ed3e97d52413e25cfe4bd5.exe

  • Size

    1.6MB

  • MD5

    ea12e4aaaca5ff5f326c0e59e271b491

  • SHA1

    3bd509f060a12c77ff45644cb51af6a368d506cf

  • SHA256

    c4e4903a423f9d0f542a8a4ba8ba9042ecfca424c4ed3e97d52413e25cfe4bd5

  • SHA512

    aff84366b83013d9569e0a560c63aff66f7693b6cecce5bfdba706264665b3e08086c08de0438ecd213851347eac6f39774370c8bd7d295cd1bbd0ba6976eeee

Malware Config

Signatures

  • Detect Neshta Payload 12 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c4e4903a423f9d0f542a8a4ba8ba9042ecfca424c4ed3e97d52413e25cfe4bd5.exe
    "C:\Users\Admin\AppData\Local\Temp\c4e4903a423f9d0f542a8a4ba8ba9042ecfca424c4ed3e97d52413e25cfe4bd5.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:840
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c4e4903a423f9d0f542a8a4ba8ba9042ecfca424c4ed3e97d52413e25cfe4bd5.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c4e4903a423f9d0f542a8a4ba8ba9042ecfca424c4ed3e97d52413e25cfe4bd5.exe"
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1472
      • C:\Windows\svchost.com
        "C:\Windows\svchost.com" "C:\PROGRA~2\Adobe\READER~1.0\Reader\READER~1.EXE"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1636
        • C:\PROGRA~2\Adobe\READER~1.0\Reader\READER~1.EXE
          C:\PROGRA~2\Adobe\READER~1.0\Reader\READER~1.EXE
          4⤵
            PID:948

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\MSOCache\ALLUSE~1\{90140~1\DW20.EXE
      MD5

      02ee6a3424782531461fb2f10713d3c1

      SHA1

      b581a2c365d93ebb629e8363fd9f69afc673123f

      SHA256

      ead58c483cb20bcd57464f8a4929079539d634f469b213054bf737d227c026dc

      SHA512

      6c9272cb1b6bde3ee887e1463ab30ea76568cb1a285d11393337b78c4ad1c3b7e6ce47646a92ab6d70bff4b02ab9d699b84af9437b720e52dcd35579fe2693ec

    • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe
      MD5

      cf6c595d3e5e9667667af096762fd9c4

      SHA1

      9bb44da8d7f6457099cb56e4f7d1026963dce7ce

      SHA256

      593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

      SHA512

      ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

    • C:\MSOCache\ALLUSE~1\{9A861~1\ose.exe
      MD5

      58b58875a50a0d8b5e7be7d6ac685164

      SHA1

      1e0b89c1b2585c76e758e9141b846ed4477b0662

      SHA256

      2a0aa0763fdef9c38c5dd4d50703f0c7e27f4903c139804ec75e55f8388139ae

      SHA512

      d67214077162a105d01b11a8e207fab08b45b08fbfba0615a2ea146e1dd99eea35e4f02958a1754d3192292c00caf777f186f0a362e4b8b0da51fabbdb76375b

    • C:\MSOCache\ALLUSE~1\{9A861~1\setup.exe
      MD5

      566ed4f62fdc96f175afedd811fa0370

      SHA1

      d4b47adc40e0d5a9391d3f6f2942d1889dd2a451

      SHA256

      e17cd94c08fc0e001a49f43a0801cea4625fb9aee211b6dfebebec446c21f460

      SHA512

      cdf8f508d396a1a0d2e0fc25f2ae46398b25039a0dafa0919737cc44e3e926ebae4c3aa26f1a3441511430f1a36241f8e61c515a5d9bd98ad4740d4d0f7b8db7

    • C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE
      MD5

      58b58875a50a0d8b5e7be7d6ac685164

      SHA1

      1e0b89c1b2585c76e758e9141b846ed4477b0662

      SHA256

      2a0aa0763fdef9c38c5dd4d50703f0c7e27f4903c139804ec75e55f8388139ae

      SHA512

      d67214077162a105d01b11a8e207fab08b45b08fbfba0615a2ea146e1dd99eea35e4f02958a1754d3192292c00caf777f186f0a362e4b8b0da51fabbdb76375b

    • C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe
      MD5

      467aee41a63b9936ce9c5cbb3fa502cd

      SHA1

      19403cac6a199f6cd77fc5ac4a6737a9a9782dc8

      SHA256

      99e5bea5f632ef4af76e4e5108486d5e99386c3d451b983bcd3ad2a49cc04039

      SHA512

      00c9ccdbbd6fd1be0c2dafd485d811be9bf2076d4efeabc256179befd92679b964e80edcb90ef21f3e874578fdb0003878227f560ca76498865770280f87113e

    • C:\Users\ALLUSE~1\PACKAG~1\{CA675~1\VCREDI~1.EXE
      MD5

      f6636e7fd493f59a5511f08894bba153

      SHA1

      3618061817fdf1155acc0c99b7639b30e3b6936c

      SHA256

      61720d294189141b74631299911d91874aa02e67096a47cfaf56ef03f568bd33

      SHA512

      bd2ae751a37b4c065f0d7f7f7ec19785c1552dfaa4818fdb213fffcf90b7951886131a2b5d7aad843f714be418383fcf09ba1d9548bdbf38fa3d304a092a33d1

    • C:\Users\ALLUSE~1\PACKAG~1\{EF6B0~1\VCREDI~1.EXE
      MD5

      3e8de969e12cd5e6292489a12a9834b6

      SHA1

      285b89585a09ead4affa32ecaaa842bc51d53ad5

      SHA256

      7a25fc3b1ce0f1d06a84dd344c8f5a6c4604732f7d13a8aaad504c4376b305cf

      SHA512

      b14a5936181a1d8c0f966d969a049254238bf1eacdb1da952c2dc084d5d6dcd5d611d2d058d4c00d6384c20046deef5e74ea865c0062bb0761a391a1eaf1640e

    • C:\Users\ALLUSE~1\PACKAG~1\{F4220~1\VC_RED~1.EXE
      MD5

      a49eb5f2ad98fffade88c1d337854f89

      SHA1

      2cc197bcf3625751f7e714ac1caf8e554d0be3b1

      SHA256

      99da2b7f53a43e0bc01bb52715a37fa87c7f328b4dfac747d7a152ea22e88449

      SHA512

      4649049a63ce1dfafb632a5b396181bf7fce6364a548660483722329eea13ec0f7df7d7a5c3104e97a1c0f201597fd27d6a1435942a1c1573db2706733aae593

    • C:\Users\Admin\AppData\Local\Temp\3582-490\c4e4903a423f9d0f542a8a4ba8ba9042ecfca424c4ed3e97d52413e25cfe4bd5.exe
      MD5

      4a60f093981b168277164ef32599916f

      SHA1

      4aefbc825ee1183ac9d0096341b6fe7246226023

      SHA256

      dab394e56119f23ee7b217c888bf268045c08a801aaa4cba92beb3190cfcf722

      SHA512

      fc3b94e23c3a850ca40b792b9634eb83574682f7b71bab1fb82c4a3431bb3a49a066089e7a4f88c52daf1a2349cd957eee29ed6b3a40d00cf6bd9734700bf695

    • C:\Windows\svchost.com
      MD5

      d1bb9002f9b41f1dd503b9b2d238e961

      SHA1

      12a1b2dca6a63dc395d327b7e4efe72c01869584

      SHA256

      b97b7dc1081d71bebacc15c20a2546e9029ec2c68294a78f29f0cce57ce49520

      SHA512

      40c33e27d80876b0326913f77dc70055f2e1cd89675eb7cec2e9a0c96182fdc16136009176d41be6ed959927bf4aac839586badfcb65622914a5ecce9398d860

    • C:\Windows\svchost.com
      MD5

      d1bb9002f9b41f1dd503b9b2d238e961

      SHA1

      12a1b2dca6a63dc395d327b7e4efe72c01869584

      SHA256

      b97b7dc1081d71bebacc15c20a2546e9029ec2c68294a78f29f0cce57ce49520

      SHA512

      40c33e27d80876b0326913f77dc70055f2e1cd89675eb7cec2e9a0c96182fdc16136009176d41be6ed959927bf4aac839586badfcb65622914a5ecce9398d860

    • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
      MD5

      9e2b9928c89a9d0da1d3e8f4bd96afa7

      SHA1

      ec66cda99f44b62470c6930e5afda061579cde35

      SHA256

      8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

      SHA512

      2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

    • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
      MD5

      9e2b9928c89a9d0da1d3e8f4bd96afa7

      SHA1

      ec66cda99f44b62470c6930e5afda061579cde35

      SHA256

      8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

      SHA512

      2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

    • \PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE
      MD5

      58b58875a50a0d8b5e7be7d6ac685164

      SHA1

      1e0b89c1b2585c76e758e9141b846ed4477b0662

      SHA256

      2a0aa0763fdef9c38c5dd4d50703f0c7e27f4903c139804ec75e55f8388139ae

      SHA512

      d67214077162a105d01b11a8e207fab08b45b08fbfba0615a2ea146e1dd99eea35e4f02958a1754d3192292c00caf777f186f0a362e4b8b0da51fabbdb76375b

    • \Users\Admin\AppData\Local\Temp\3582-490\c4e4903a423f9d0f542a8a4ba8ba9042ecfca424c4ed3e97d52413e25cfe4bd5.exe
      MD5

      4a60f093981b168277164ef32599916f

      SHA1

      4aefbc825ee1183ac9d0096341b6fe7246226023

      SHA256

      dab394e56119f23ee7b217c888bf268045c08a801aaa4cba92beb3190cfcf722

      SHA512

      fc3b94e23c3a850ca40b792b9634eb83574682f7b71bab1fb82c4a3431bb3a49a066089e7a4f88c52daf1a2349cd957eee29ed6b3a40d00cf6bd9734700bf695

    • memory/840-55-0x0000000076371000-0x0000000076373000-memory.dmp
      Filesize

      8KB