Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    31-10-2021 15:10

General

  • Target

    931568b982ac42dd2edc68ff203ec101.exe

  • Size

    275KB

  • MD5

    931568b982ac42dd2edc68ff203ec101

  • SHA1

    9955f4d4fd6e0000a908e99116d5d22c6371b255

  • SHA256

    16f75019c7de5d79c259d4b1f1003938bd6449ce3c49b28d6320bb43dd6bd82a

  • SHA512

    2f9fd405e6d6dbcc369108d325ee195bac392beea240ce12c16d05bec9295240d971f9d87427a2664aed559564ed415489c0e3f9493184bac8fef824c9243780

Malware Config

Signatures

  • 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 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • NSIS installer 16 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\931568b982ac42dd2edc68ff203ec101.exe
    "C:\Users\Admin\AppData\Local\Temp\931568b982ac42dd2edc68ff203ec101.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:1648
    • C:\Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:796
      • C:\Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe
        "C:\Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1424
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1424 -s 148
          4⤵
          • Loads dropped DLL
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:360

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe
    MD5

    8d97ea0aeb6dbb5bfe61a2a45809dd90

    SHA1

    c2abdfefadc76b9f78b500f5b3aba9321a5d42e1

    SHA256

    8397681fb127b7050397870b95f23d310f2e62ee5c2e3a7410d2daeec99e9e06

    SHA512

    b199abfc0abe5f46873ceaccd287e973a6285d40caeb9320f126bfdc081f4bbd8dc706a2a2ca74a305fd5666772db877cb6bc1ea35448585941b1f191405779e

  • C:\Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe
    MD5

    8d97ea0aeb6dbb5bfe61a2a45809dd90

    SHA1

    c2abdfefadc76b9f78b500f5b3aba9321a5d42e1

    SHA256

    8397681fb127b7050397870b95f23d310f2e62ee5c2e3a7410d2daeec99e9e06

    SHA512

    b199abfc0abe5f46873ceaccd287e973a6285d40caeb9320f126bfdc081f4bbd8dc706a2a2ca74a305fd5666772db877cb6bc1ea35448585941b1f191405779e

  • C:\Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe
    MD5

    8d97ea0aeb6dbb5bfe61a2a45809dd90

    SHA1

    c2abdfefadc76b9f78b500f5b3aba9321a5d42e1

    SHA256

    8397681fb127b7050397870b95f23d310f2e62ee5c2e3a7410d2daeec99e9e06

    SHA512

    b199abfc0abe5f46873ceaccd287e973a6285d40caeb9320f126bfdc081f4bbd8dc706a2a2ca74a305fd5666772db877cb6bc1ea35448585941b1f191405779e

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

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe
    MD5

    8d97ea0aeb6dbb5bfe61a2a45809dd90

    SHA1

    c2abdfefadc76b9f78b500f5b3aba9321a5d42e1

    SHA256

    8397681fb127b7050397870b95f23d310f2e62ee5c2e3a7410d2daeec99e9e06

    SHA512

    b199abfc0abe5f46873ceaccd287e973a6285d40caeb9320f126bfdc081f4bbd8dc706a2a2ca74a305fd5666772db877cb6bc1ea35448585941b1f191405779e

  • \Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe
    MD5

    8d97ea0aeb6dbb5bfe61a2a45809dd90

    SHA1

    c2abdfefadc76b9f78b500f5b3aba9321a5d42e1

    SHA256

    8397681fb127b7050397870b95f23d310f2e62ee5c2e3a7410d2daeec99e9e06

    SHA512

    b199abfc0abe5f46873ceaccd287e973a6285d40caeb9320f126bfdc081f4bbd8dc706a2a2ca74a305fd5666772db877cb6bc1ea35448585941b1f191405779e

  • \Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe
    MD5

    8d97ea0aeb6dbb5bfe61a2a45809dd90

    SHA1

    c2abdfefadc76b9f78b500f5b3aba9321a5d42e1

    SHA256

    8397681fb127b7050397870b95f23d310f2e62ee5c2e3a7410d2daeec99e9e06

    SHA512

    b199abfc0abe5f46873ceaccd287e973a6285d40caeb9320f126bfdc081f4bbd8dc706a2a2ca74a305fd5666772db877cb6bc1ea35448585941b1f191405779e

  • \Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe
    MD5

    8d97ea0aeb6dbb5bfe61a2a45809dd90

    SHA1

    c2abdfefadc76b9f78b500f5b3aba9321a5d42e1

    SHA256

    8397681fb127b7050397870b95f23d310f2e62ee5c2e3a7410d2daeec99e9e06

    SHA512

    b199abfc0abe5f46873ceaccd287e973a6285d40caeb9320f126bfdc081f4bbd8dc706a2a2ca74a305fd5666772db877cb6bc1ea35448585941b1f191405779e

  • \Users\Admin\AppData\Local\Temp\3582-490\931568b982ac42dd2edc68ff203ec101.exe
    MD5

    8d97ea0aeb6dbb5bfe61a2a45809dd90

    SHA1

    c2abdfefadc76b9f78b500f5b3aba9321a5d42e1

    SHA256

    8397681fb127b7050397870b95f23d310f2e62ee5c2e3a7410d2daeec99e9e06

    SHA512

    b199abfc0abe5f46873ceaccd287e973a6285d40caeb9320f126bfdc081f4bbd8dc706a2a2ca74a305fd5666772db877cb6bc1ea35448585941b1f191405779e

  • \Users\Admin\AppData\Local\Temp\nstCD6E.tmp\vskgzcgvn.dll
    MD5

    879fe70b7d9b58770c4c5ff43b6af498

    SHA1

    f9fd57ae071014e5ccb32440ee52d2c51166a0c3

    SHA256

    cabc6346c99a2f74c7cac1d4c1f83538cce9b0047c8437e240af03338b73f192

    SHA512

    49a6740fea7f230da9808b46b6f2f896c05894b4dad923cbdd1fec0859e4bd4afc2fddca4655b7d2e3553e5e36605f73db2b64fde9a509a4fcf957eec87d3773

  • memory/360-74-0x0000000000000000-mapping.dmp
  • memory/360-79-0x00000000003A0000-0x00000000003A1000-memory.dmp
    Filesize

    4KB

  • memory/796-57-0x0000000000000000-mapping.dmp
  • memory/1424-63-0x0000000000000000-mapping.dmp
  • memory/1424-69-0x00000000001C0000-0x00000000001DB000-memory.dmp
    Filesize

    108KB

  • memory/1424-65-0x00000000001C0000-0x00000000001DB000-memory.dmp
    Filesize

    108KB

  • memory/1648-55-0x0000000075321000-0x0000000075323000-memory.dmp
    Filesize

    8KB