Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2024, 02:30

General

  • Target

    25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.exe

  • Size

    7.4MB

  • MD5

    4aff8bb1e4ed6d52d533cfc761f0c070

  • SHA1

    1c25f87f7efb6a4dd063a5bdfa04de5893d8d1b0

  • SHA256

    25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13

  • SHA512

    3b653355f0898d58e32f1e39fa57781b3e82be012ad95fb7261da140e1beea4c7f8d672d70542e8f504c68f52dabcfacb5285b040df649c6d5687aa651d8712a

  • SSDEEP

    196608:EDdHC6EvxNonU3jt4LYPagzq8QQwzx1dCsCE:DxDoUTtnPaIwlGQ

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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 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 2 IoCs

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

  • NSIS installer 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.exe
    "C:\Users\Admin\AppData\Local\Temp\25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.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:2512
    • C:\Users\Admin\AppData\Local\Temp\3582-490\25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      PID:2328

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\nsoAA83.tmp\ioSpecial.ini

    Filesize

    554B

    MD5

    e94905a2f4e3a870561e74662708e4e6

    SHA1

    c13d16038aac98d10cde9bb9f04e4ed67cf64385

    SHA256

    b08985f3f041b20045b61da96a24d757b011726b19ca7472265faa0caa97e145

    SHA512

    c310c6db5fd7838dd481105c6093910cd438fafd80a3ee0586bf3d1c4b1ce17f6ed2d050d0281687d73458e9fe20c4858909b7c044258189a8e63e24e01b3e2a

  • C:\Users\Admin\AppData\Local\Temp\nsoAA83.tmp\ioSpecial.ini

    Filesize

    593B

    MD5

    4ffddb049557196d9b3c441c92bb1390

    SHA1

    9bac9ee511c437250e32e698f2b441bc9df8e1cb

    SHA256

    ae79780d56f1769f6a030e27304cd0b348a064ca3c290cf6e31df3577af0b4aa

    SHA512

    6022b59a9fcc5c9653ef98850f36f22783b88caab1a18fd7a87e2fdb46ad410ca32f6aa0a52851ffc7123acecd5f87c7a678052185c9b040fc506f632a722e65

  • \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\25d10a98a6a0ae69e6e16490236d47bc3023a66369a61f7aa513364b30466a13N.exe

    Filesize

    7.4MB

    MD5

    5714dea75f88cc79a97cbc96a66fa829

    SHA1

    1c24971bdec438adbf863e00805aeb8b2f76f59c

    SHA256

    fb74e024b195c7a1a8a751b368b8d909392e0fffd5dac98982759eb4c01b8c5f

    SHA512

    630bbce41ba5ae93720a247b1cac1c7d114e710599d6917ce6f64facc33de73e97fe7b8b480bfec72508ad2a0fc30e05ee32a199ee9dd86900fd9cb9e96dd5f4

  • \Users\Admin\AppData\Local\Temp\nsoAA83.tmp\InstallOptions.dll

    Filesize

    14KB

    MD5

    325b008aec81e5aaa57096f05d4212b5

    SHA1

    27a2d89747a20305b6518438eff5b9f57f7df5c3

    SHA256

    c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

    SHA512

    18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf

  • \Users\Admin\AppData\Local\Temp\nsoAA83.tmp\KillProcDLL.dll

    Filesize

    32KB

    MD5

    83142eac84475f4ca889c73f10d9c179

    SHA1

    dbe43c0de8ef881466bd74861b2e5b17598b5ce8

    SHA256

    ae2f1658656e554f37e6eac896475a3862841a18ffc6fad2754e2d3525770729

    SHA512

    1c66eab21f0c9e0b99ecc3844516a6978f52e0c7f489405a427532ecbe78947c37dac5b4c8b722cc8bc1edfb74ba4824519d56099e587e754e5c668701e83bd1

  • \Users\Admin\AppData\Local\Temp\nsoAA83.tmp\UAC.dll

    Filesize

    13KB

    MD5

    431e5b960aa15af5d153bae6ba6b7e87

    SHA1

    e090c90be02e0bafe5f3d884c0525d8f87b3db40

    SHA256

    a6d956f28c32e8aa2ab2df13ef52637e23113fab41225031e7a3d47390a6cf13

    SHA512

    f1526c7e4d0fce8ab378e43e89aafb1d7e9d57ef5324501e804091e99331dd2544912181d6d4a07d30416fe17c892867c593aee623834935e11c7bb385c6a0a8

  • memory/2512-173-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2512-175-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB