Analysis

  • max time kernel
    94s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2024 03:40

General

  • Target

    170debcdb15049bacfe39433d7f76e67e71020404e37197b9fe2fcd29101c706N.exe

  • Size

    1.4MB

  • MD5

    743ad0b26a85a1c2747e0bc71c254360

  • SHA1

    43f4ebada8fde7af4a79591451b45aa3f6c4e5e6

  • SHA256

    170debcdb15049bacfe39433d7f76e67e71020404e37197b9fe2fcd29101c706

  • SHA512

    93167c85fe078386f84a3c9a01d4f8f81a2ef998e7257b618d63ce4e0425423a093699ce7757232eab14a295216932e5ca7b622fc5ec920d67531aa724219ff7

  • SSDEEP

    24576:Mh3QCxH+ORg5Ep0c6fe0tTEtfufO1pLofVukuJ4QqRk4u2+jKvwcbaiRaY2dLEIq:Mhhg5EuJfHt3fO1pcNukuMk4unmbHUYt

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

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

  • Neshta family
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 2 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\170debcdb15049bacfe39433d7f76e67e71020404e37197b9fe2fcd29101c706N.exe
    "C:\Users\Admin\AppData\Local\Temp\170debcdb15049bacfe39433d7f76e67e71020404e37197b9fe2fcd29101c706N.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:2336
    • C:\Users\Admin\AppData\Local\Temp\3582-490\170debcdb15049bacfe39433d7f76e67e71020404e37197b9fe2fcd29101c706N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\170debcdb15049bacfe39433d7f76e67e71020404e37197b9fe2fcd29101c706N.exe"
      2⤵
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies system certificate store
      PID:2360

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\LocalLow\Microsoft\CryptnetUrlCache\Content\8A4AA6A226E1870F0261713C59F1CB84

    Filesize

    983B

    MD5

    42f8529fe545103fdd848980a8647f29

    SHA1

    ca7788c32da1e4b7863a4fb57d00b55ddacbc7f9

    SHA256

    a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea

    SHA512

    1a3994c12d65e9c96b4c4ebcf79e8b291b620177520a7d0482a2b6043dd150a9f2ce1627d130309390e3ac6be98af5f2b50c1993c478976d0c9a9638c46a61bd

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    cd16c149d12e0314c490d5e46088175c

    SHA1

    ad881b15adc2d36a867d376498e4bf70441a470f

    SHA256

    8863c4e84109e24c84f9df57873a5d28a8ccebe13a1833be127ce7c56d0bc0e2

    SHA512

    27c88e3a0f9923cdcdf38addf980239ff05b65e325fed93090f80a078c0490f97674c159ad42f8813e3f46d7fb0172bc61195e143bfa9b0f57cb83f7f4e3f543

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    5552eac33ee8eafa12bd65641233759d

    SHA1

    20d9373e1c211a84b47372b9682fbbfd5ac3ea5e

    SHA256

    ddb546b78cfb6627174c6ecd8151101e87caefb8501da0c6c75a409dc01a6fd9

    SHA512

    992045263ecd88f4d474a4faed6474f637b8701388aba2ec592169dad55f6f0ea0b5342686a2c80e75a13462020dc3e1a5e6be17a64547718298b40bd2e0265b

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    364fcfc23b9d139f013afdf70446a052

    SHA1

    8cfec5fc4ef35f2d94a38bb35be3098235e411c6

    SHA256

    d8767f81c03324b8c794b75636d54c7250e280e59c97f46a97a0a0ab0c2bc427

    SHA512

    ef02e5f57f210da0d0b534210c3c55347d91ca8dd047dedb2c18781f3d78a0f2cae9167d7df7d84688a0be7ceda68367a0b86242555b2905020581e30d830f8a

  • C:\Users\Admin\AppData\Local\Temp\CabE716.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarE748.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\170debcdb15049bacfe39433d7f76e67e71020404e37197b9fe2fcd29101c706N.exe

    Filesize

    1.4MB

    MD5

    d382005072ae5750c3064e22ffb730eb

    SHA1

    2cb2653db77618a8efcf01d9dee14bca60f8f92f

    SHA256

    d4f1d43e5c71a510e57a83e44f1716b436e25f195515de7c05f6ed951be7d691

    SHA512

    2248718365b01c020ccf0e20866e16548d30a6f840f48c64fee9097ad442cae24431c0602e062ce5bd11075252cd9d5ad8d8223db615ed26fda0775c9448b72c

  • memory/2336-11-0x0000000002D90000-0x00000000030E3000-memory.dmp

    Filesize

    3.3MB

  • memory/2336-375-0x0000000002D90000-0x00000000030E3000-memory.dmp

    Filesize

    3.3MB

  • memory/2336-378-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2336-379-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2336-381-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2360-49-0x00000000008A0000-0x00000000008A1000-memory.dmp

    Filesize

    4KB

  • memory/2360-12-0x0000000000400000-0x0000000000753000-memory.dmp

    Filesize

    3.3MB

  • memory/2360-377-0x0000000000400000-0x0000000000753000-memory.dmp

    Filesize

    3.3MB