Analysis

  • max time kernel
    118s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    04-12-2024 17:23

General

  • Target

    file.exe

  • Size

    5.7MB

  • MD5

    54c804c8f597748ce17394624b6c08a4

  • SHA1

    4afa779208e5fa47630a8c4a17107e54db2234f5

  • SHA256

    6163a3302b0eb60ff371116b0e90de30df65493ac7192235d4495e43c4a41d4f

  • SHA512

    17ef71946a361962fc1747d78b60bb481574fba96b079cc3f7b2f220fa36db506cecd3ef9729c84c4e20b9c04b50ec766431d5dce0e21b8f2a15037750003384

  • SSDEEP

    49152:trikhN5aCxzCm5BOjP7lTu142JueO4dG8Hc64HTan/Fb:RQXQ

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

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

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Users\Admin\AppData\Local\Temp\3582-490\file.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\file.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\Temp\Cab73BB.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar73CE.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

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

    Filesize

    5.7MB

    MD5

    0066f98970748d1173343ecb8efcb60f

    SHA1

    b849377f56b23bedd094b3069f645542f095b782

    SHA256

    fdec686409d94188a755f39cb793f93fd2f0b62e99bc13ea9a63e1f3dd78c8a1

    SHA512

    fd805eb1e9be1bebe114d3e069fd387e337b620b003425d824debf5426111f97138b2e654e467b41983685c634d485edfc8434ad6217197d1266925f5ede9b1a

  • memory/2128-60-0x0000000002530000-0x0000000002544000-memory.dmp

    Filesize

    80KB

  • memory/2128-56-0x0000000002470000-0x0000000002482000-memory.dmp

    Filesize

    72KB

  • memory/2128-52-0x00000000007A0000-0x00000000007CC000-memory.dmp

    Filesize

    176KB

  • memory/2128-55-0x0000000000580000-0x0000000000590000-memory.dmp

    Filesize

    64KB

  • memory/2128-65-0x000000001AC10000-0x000000001AC22000-memory.dmp

    Filesize

    72KB

  • memory/2128-64-0x000000001AB80000-0x000000001AB92000-memory.dmp

    Filesize

    72KB

  • memory/2128-63-0x000000001AB70000-0x000000001AB86000-memory.dmp

    Filesize

    88KB

  • memory/2128-62-0x000000001AB60000-0x000000001AB72000-memory.dmp

    Filesize

    72KB

  • memory/2128-61-0x00000000026D0000-0x00000000026E2000-memory.dmp

    Filesize

    72KB

  • memory/2128-47-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

    Filesize

    9.9MB

  • memory/2128-59-0x0000000002520000-0x0000000002532000-memory.dmp

    Filesize

    72KB

  • memory/2128-58-0x0000000002490000-0x00000000024A2000-memory.dmp

    Filesize

    72KB

  • memory/2128-57-0x0000000002480000-0x0000000002492000-memory.dmp

    Filesize

    72KB

  • memory/2128-50-0x000000001B660000-0x000000001B848000-memory.dmp

    Filesize

    1.9MB

  • memory/2128-54-0x0000000000270000-0x000000000028C000-memory.dmp

    Filesize

    112KB

  • memory/2128-53-0x00000000007D0000-0x0000000000824000-memory.dmp

    Filesize

    336KB

  • memory/2128-102-0x000000001AD70000-0x000000001AD7A000-memory.dmp

    Filesize

    40KB

  • memory/2128-101-0x000000001AD70000-0x000000001AD7A000-memory.dmp

    Filesize

    40KB

  • memory/2128-12-0x0000000000830000-0x0000000000DE0000-memory.dmp

    Filesize

    5.7MB

  • memory/2128-11-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

    Filesize

    4KB

  • memory/2128-209-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

    Filesize

    4KB

  • memory/2128-210-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

    Filesize

    9.9MB

  • memory/2128-212-0x000000001AD70000-0x000000001AD7A000-memory.dmp

    Filesize

    40KB

  • memory/2364-211-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2364-214-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB