Analysis

  • max time kernel
    15s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    21-07-2024 22:33

General

  • Target

    1f0b9ca60d16e9702072a451cda8f010N.exe

  • Size

    3.0MB

  • MD5

    1f0b9ca60d16e9702072a451cda8f010

  • SHA1

    6c2f8a9cd75b0867bd7e69d7972a3080d9cf6c1d

  • SHA256

    8078c7293afd40870b4cf1bdd4edf8229a88c4ad467eaccff67fe21a2e1e7146

  • SHA512

    18f7f85fe7d084a4fa700bc8874f070170dac87fd583aa5a59c6d9200fbc45fd5073a5085b39c92a2809afff426c76f36041e6d17170c4590133c13e7c85aff1

  • SSDEEP

    49152:bwi8hXaMLmdGdZMvPspL0McbmAxTmxHfW7JBwPONm6AsU/w/Lg+/YkXJAVev:U3XxLKGdZMvELCmAMHeBwPXsU4/LgSYw

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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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).

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f0b9ca60d16e9702072a451cda8f010N.exe
    "C:\Users\Admin\AppData\Local\Temp\1f0b9ca60d16e9702072a451cda8f010N.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1f0b9ca60d16e9702072a451cda8f010N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1f0b9ca60d16e9702072a451cda8f010N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2352
      • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\DefaultPack.EXE
        C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\DefaultPack.EXE silent=true
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Suspicious use of SetWindowsHookEx
        PID:2076

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\IXP000.TMP\InstallerConfig.xml

    Filesize

    196KB

    MD5

    9c31d329349f9cec1879c37722cf919e

    SHA1

    b6c6b34af5e58a0b114632bfe2f13f25ffff6dbe

    SHA256

    46b6e56bf9b8fe328b5675669934d9350d0ea21287fe5608bebc5a97bad0aa1d

    SHA512

    6241499181584f5fe657fb105620fc1ac52723abe3027e2cf85db319b846de4815fba3990399b62fd12c28014988f2ffd28ead603674d660650f6c6d426f7fe4

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Logo_zh-cn.png

    Filesize

    2KB

    MD5

    16b9fa83fd6ce8b7b4f7a4e8b8477317

    SHA1

    7882352a510695b0238fb3f14a3791bfaca56f94

    SHA256

    9226321f1ddf071261e59c3c0d6732fe3cb15c5bd6db6271983801f72b969f35

    SHA512

    796d76dbfa601a2ca615260252065fd3b5c643955ae8fd67c0295c7129543a81703a392246393b0db647ba514ed2bf186a2b6717a28bbc5584696684aff1315c

  • \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\1f0b9ca60d16e9702072a451cda8f010N.exe

    Filesize

    2.9MB

    MD5

    d1c7057ab1cfe9f4ea14c903b3dd5d7c

    SHA1

    275f777dc9d6796d45d863476b8b9cd3c4c3430f

    SHA256

    307e35691e4d72cf5d611508fcc691baa2cfec8a0322148e9e8fc0632eb30651

    SHA512

    ea43e2f1e7452f4043567c8e770c0b999004d52344d067740b964c21eca8c94e0961095b71474045cf4214625104ce8ed6dd4904e32cd61bf6357916fbddd5a2

  • \Users\Admin\AppData\Local\Temp\IXP000.TMP\DefaultPack.EXE

    Filesize

    7.8MB

    MD5

    65573de8aa931a8fed606ceab8604b23

    SHA1

    d774476735225af48a52ed0409d83d1819b9c483

    SHA256

    b4f5ed49da8357485c3c5a7212210bee957079475a75393886d318a8be439b69

    SHA512

    5337d7df614a5d455f9ddaa237b5b2940c6b6621cc4ed6b36c6f04c5d7893c665b619c0806e89d003e9f6a2ee5c6227dcc44cdc0c6bd14d655085ae861fc6250

  • \Users\Admin\AppData\Local\Temp\IXP000.TMP\zlib1.dll

    Filesize

    58KB

    MD5

    80e41408f6d641dc1c0f5353a0cc8125

    SHA1

    6d957ba632df5b06d49a901f2772df4301610a2a

    SHA256

    b09537250201236472ccd3caff5c0c12a5fad262e1e951350e9e5ed2a81d9dde

    SHA512

    857d4dc087c73f00d79bf70edfc67ddc0b15a86a4fff366d91e5ef6684af43eed7dcf8579f6b4fb35dedd090973e2bde1a82aae07642136b608eeb1d567e5c03

  • memory/2316-116-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2316-118-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB