Analysis

  • max time kernel
    160s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-09-2022 21:34

General

  • Target

    d04efe3df296392aff917f485e0c3897.exe

  • Size

    5.5MB

  • MD5

    d04efe3df296392aff917f485e0c3897

  • SHA1

    1719eb1e23ab98027be23e4aef1b47950cc5dd4f

  • SHA256

    968070cf4750158e7a88a559b8ca82c0a98866f77857c4dab8e55bcd32fc61df

  • SHA512

    66dabe6f1d39b9635e5838fc68200cc952ba5b324efcb00290670230379bba989dc29ff1134b82da711cddea00697ec8078617126656a86ae8f57b27b7b931e1

  • SSDEEP

    98304:KSiZkzOZrfJR+kCmzc8qdaMg5geYy05sZH6m9JPmlm5uRHzy+Il+crfMWHvZkby5:RzyDJEszedaR5ge1JMmnPmlXBzuXr/HZ

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 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d04efe3df296392aff917f485e0c3897.exe
    "C:\Users\Admin\AppData\Local\Temp\d04efe3df296392aff917f485e0c3897.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d04efe3df296392aff917f485e0c3897.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d04efe3df296392aff917f485e0c3897.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:224
      • C:\Users\Admin\AppData\Local\Temp\is-5QCO8.tmp\d04efe3df296392aff917f485e0c3897.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-5QCO8.tmp\d04efe3df296392aff917f485e0c3897.tmp" /SL5="$110056,4772887,898560,C:\Users\Admin\AppData\Local\Temp\3582-490\d04efe3df296392aff917f485e0c3897.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:536
        • C:\Users\Admin\AppData\Local\Temp\is-U6SDB.tmp\closeapp.exe
          "C:\Users\Admin\AppData\Local\Temp\is-U6SDB.tmp\closeapp.exe" StartupStar
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:4032

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\d04efe3df296392aff917f485e0c3897.exe

    Filesize

    5.5MB

    MD5

    78b3ab2789f5f3e517acca846d8b951c

    SHA1

    6094cc5fe49b6bd9388748b99fdedab121643a73

    SHA256

    117653c1f77dabca9652c2eb2ae9e63538083d4f135bb6400c8e1ea886d0b1c1

    SHA512

    7b9eedb86ab887c37aa0c8c93279aea832dbbd98dc8cfa1e42156d5150e7c483ad3095f8540c8aeba04306ae64c734d746c7b946daca71e02274e01a4c6959b8

  • C:\Users\Admin\AppData\Local\Temp\3582-490\d04efe3df296392aff917f485e0c3897.exe

    Filesize

    5.5MB

    MD5

    78b3ab2789f5f3e517acca846d8b951c

    SHA1

    6094cc5fe49b6bd9388748b99fdedab121643a73

    SHA256

    117653c1f77dabca9652c2eb2ae9e63538083d4f135bb6400c8e1ea886d0b1c1

    SHA512

    7b9eedb86ab887c37aa0c8c93279aea832dbbd98dc8cfa1e42156d5150e7c483ad3095f8540c8aeba04306ae64c734d746c7b946daca71e02274e01a4c6959b8

  • C:\Users\Admin\AppData\Local\Temp\is-5QCO8.tmp\d04efe3df296392aff917f485e0c3897.tmp

    Filesize

    3.1MB

    MD5

    caf2a370fad05970f8a562cdfde6ac90

    SHA1

    c657362c34bcb45ccb2cc4db42a6de6fb8547c6f

    SHA256

    155a3f8e5fd95e92b0665f59233df532786cab5922e743b1171aeb478e09f481

    SHA512

    ad8456b43d1cc7d5fc34af7c9c5cf4105ac7707984aecfce3fd04495d5bfadfd73216bcec78fbe6cf47338ee6b450d49ac05b3641fb861467d4d87ef25197ef2

  • C:\Users\Admin\AppData\Local\Temp\is-U6SDB.tmp\closeapp.exe

    Filesize

    227KB

    MD5

    9a2bbf4de6279c9321969c6257f48939

    SHA1

    4fdf355fa10fbd61c1d4c47e21e66b09493a1621

    SHA256

    40e33b4ded6db4e96b7ba89770b248d62ffd5f9175e2e0b58692084ce3b91a10

    SHA512

    3afd50668327f518e0d5dfe8200f43ee29cdf8dea8667e31131005e1d0e67acb96f4c218b2ab1f7a3ee926bf600b57b046b5c21ba40de779acc03d130087a4cc

  • C:\Users\Admin\AppData\Local\Temp\is-U6SDB.tmp\closeapp.exe

    Filesize

    227KB

    MD5

    9a2bbf4de6279c9321969c6257f48939

    SHA1

    4fdf355fa10fbd61c1d4c47e21e66b09493a1621

    SHA256

    40e33b4ded6db4e96b7ba89770b248d62ffd5f9175e2e0b58692084ce3b91a10

    SHA512

    3afd50668327f518e0d5dfe8200f43ee29cdf8dea8667e31131005e1d0e67acb96f4c218b2ab1f7a3ee926bf600b57b046b5c21ba40de779acc03d130087a4cc

  • C:\Users\Admin\AppData\Local\Temp\is-U6SDB.tmp\isxdl.dll

    Filesize

    164KB

    MD5

    735c1b6a6233ac5eca5eabb6edb8de3e

    SHA1

    fbea3d1230f3cac2f1b67141fa0706ccc5e52759

    SHA256

    17415e672d167bb83f865a73e0c399696f1d953edf43a21e55cf79c4e5320d23

    SHA512

    9f3c933ce3a8d9799ee7de091f84a57b3f13f0bef23c28e8a26e7287dc6c37393a704785d3fa72c83c966f6d3431c30c2164e699d2149caff0799da7385a0060

  • memory/224-132-0x0000000000000000-mapping.dmp

  • memory/224-134-0x0000000000400000-0x00000000004E9000-memory.dmp

    Filesize

    932KB

  • memory/224-137-0x0000000000400000-0x00000000004E9000-memory.dmp

    Filesize

    932KB

  • memory/224-144-0x0000000000400000-0x00000000004E9000-memory.dmp

    Filesize

    932KB

  • memory/536-138-0x0000000000000000-mapping.dmp

  • memory/4032-141-0x0000000000000000-mapping.dmp