Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    08-12-2024 02:53

General

  • Target

    2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.exe

  • Size

    176KB

  • MD5

    534e169417d2acf75512319cd0fcea80

  • SHA1

    85271d67f8bf1ef00eca9670c7eee39078a01968

  • SHA256

    2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4

  • SHA512

    dd0b02f19edbefacc2eb8fb9eed11ed161a04ad0315c73c1d0e28387b05d1188ff0119d6625fd8a087b108424c0802c09f2b6b36e36ef16343edd75a30e71193

  • SSDEEP

    3072:sr85CU7kc39wfHYTo7RobLh1JFWQaP1p84r85C:k9LdgTcobd1JFW11p8Y9

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 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).

  • Program crash 1 IoCs
  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.exe
    "C:\Users\Admin\AppData\Local\Temp\2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.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:2704
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2824 -s 104
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2832

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

  • \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\2cb9bfdd94a4998113b81ccec19a6ef40ae3570facabbe73a357bf0bb22d5ba4N.exe

    Filesize

    136KB

    MD5

    cc00cd653b6b74c4f2a96ac74e5eaa27

    SHA1

    4e2f5e29d8e125f4e0d14d76978830dc216aa95b

    SHA256

    ae37c5601e5d14969c3213fc27c55cb247e1f5451f2181eb21bb41bc83149508

    SHA512

    6da96da5a927d5be1f984efd903978efe34f668a810b858f2e9e2573818f27066c00aa439b350d6965f3cb95f8758030a846f8e5860407a0c330631dde056394

  • memory/2704-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2704-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB