Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 13:45

General

  • Target

    515584af42b4ea197a6f9af03346f77394bf9126caf6415405c6c3ea3932c2deN.exe

  • Size

    814KB

  • MD5

    8b82dd024d7cd2db4f34bae674d52410

  • SHA1

    8e4b6745ebf360199aa3952b39117e2cebdbc22b

  • SHA256

    515584af42b4ea197a6f9af03346f77394bf9126caf6415405c6c3ea3932c2de

  • SHA512

    b494c763fb24f69c86b112339c25e30ff3d4eb3c1b8a74cdd8e10f1f71698e1e2e882ec481a6bf36fc0b97fd92a17bf3b03f5c8898d7a8374488daa211ad6aa5

  • SSDEEP

    24576:LA+oYQ+4YLWzswpKrqXWOKKTw7lk2oilB8E3YViCjt93dz5eGu:0+oYLWzswpKrqXWOKKTw7lk2oilB8E35

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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\515584af42b4ea197a6f9af03346f77394bf9126caf6415405c6c3ea3932c2deN.exe
    "C:\Users\Admin\AppData\Local\Temp\515584af42b4ea197a6f9af03346f77394bf9126caf6415405c6c3ea3932c2deN.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:768
    • C:\Users\Admin\AppData\Local\Temp\3582-490\515584af42b4ea197a6f9af03346f77394bf9126caf6415405c6c3ea3932c2deN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\515584af42b4ea197a6f9af03346f77394bf9126caf6415405c6c3ea3932c2deN.exe"
      2⤵
      • Executes dropped EXE
      PID:2008

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

  • \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\515584af42b4ea197a6f9af03346f77394bf9126caf6415405c6c3ea3932c2deN.exe

    Filesize

    773KB

    MD5

    04af6ff34fa4d10276826103d3e11338

    SHA1

    2183a36bf2124cc584a47735994320ff74aa958a

    SHA256

    14704a0fa47f1a94d6633d3705369ec9c3498bb0cead148a93a9585f1ad1d868

    SHA512

    479b946ea0f4c86b55bbdaaf05e04adf09556c016267cff6a3238a4d7e0cf3843a4674e669c783adb41230d55190e257196deacfa3644872c2110086d708b304

  • memory/768-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/768-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB