Analysis

  • max time kernel
    19s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 04:20

General

  • Target

    c0e0df22874b24554cf5e03aa1773b6af4f23fbcb8bbb58bb9eaf9ccaae3023dN.exe

  • Size

    3.9MB

  • MD5

    8845ccaf495c0acc22aa9457a25de810

  • SHA1

    9442710ae5b17ff18ce7e483a8d3aa6b8b6fe082

  • SHA256

    c0e0df22874b24554cf5e03aa1773b6af4f23fbcb8bbb58bb9eaf9ccaae3023d

  • SHA512

    711b3561e5ebc54807de59bb6e8c5c76e1e25f3721f254b0f63127fe8cf9dfcbe7e593ec524d9decddc3b1beac76fc5790c7a11b3acdfdb18406faea8cb219ac

  • SSDEEP

    98304:M6666666666666666666666666666666x666666666666666fwwwwwwwwwwwwwwk:ZzRULc1oGgvlHbtmdwo+/u

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 2 IoCs
  • Loads dropped DLL 3 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 3 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 WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c0e0df22874b24554cf5e03aa1773b6af4f23fbcb8bbb58bb9eaf9ccaae3023dN.exe
    "C:\Users\Admin\AppData\Local\Temp\c0e0df22874b24554cf5e03aa1773b6af4f23fbcb8bbb58bb9eaf9ccaae3023dN.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:2712
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c0e0df22874b24554cf5e03aa1773b6af4f23fbcb8bbb58bb9eaf9ccaae3023dN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c0e0df22874b24554cf5e03aa1773b6af4f23fbcb8bbb58bb9eaf9ccaae3023dN.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2576
      • C:\Users\Admin\AppData\Local\Temp\3582-490\c0e0df22874b24554cf5e03aa1773b6af4f23fbcb8bbb58bb9eaf9ccaae3023dN.exe
        C:\Users\Admin\AppData\Local\Temp\3582-490\c0e0df22874b24554cf5e03aa1773b6af4f23fbcb8bbb58bb9eaf9ccaae3023dN.exe --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktopGX --annotation=ver=95.0.4635.88 --initial-client-data=0x144,0x148,0x14c,0x118,0x150,0x1003200,0x1003210,0x100321c
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2116

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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\CabA5A4.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarA5D6.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\c0e0df22874b24554cf5e03aa1773b6af4f23fbcb8bbb58bb9eaf9ccaae3023dN.exe

    Filesize

    3.9MB

    MD5

    bca3e3002bf6957b1461cd7256179235

    SHA1

    66bc6d2c49252231daefc7e787a6f96ac69a7cf4

    SHA256

    52b9dee5a5847cc95f1956745ac2ab849d32274b1558cd16ef163fc5f50768ce

    SHA512

    2d95897182178c651822df5f1726f795c23accd172488a21a74fff6e80b429ecdafae9ad892e61d33cde1fcaee793ad95c1409398f74707443ef699d23b8d993

  • memory/2712-305-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2712-361-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB