Analysis

  • max time kernel
    104s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2022 04:08

General

  • Target

    f6319117288471b42d4935c3972b20fbfbfaad0f4811aaba2561eff4ba1c4b98.exe

  • Size

    5.6MB

  • MD5

    e5dc0eb2e26a15f8a853aa7d59f60efa

  • SHA1

    26e16ced234195d062309d7983a50d27dd233998

  • SHA256

    f6319117288471b42d4935c3972b20fbfbfaad0f4811aaba2561eff4ba1c4b98

  • SHA512

    9160b2dd0dc58cc4132eaef34cb89097d2b4315b67aad3ff9b148f77bf5f0525bf037f83847709ee87150f4ae362dc13760f79fb723e345e7262f5a0032b1513

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

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

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 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). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6319117288471b42d4935c3972b20fbfbfaad0f4811aaba2561eff4ba1c4b98.exe
    "C:\Users\Admin\AppData\Local\Temp\f6319117288471b42d4935c3972b20fbfbfaad0f4811aaba2561eff4ba1c4b98.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Users\Admin\AppData\Local\Temp\3582-490\f6319117288471b42d4935c3972b20fbfbfaad0f4811aaba2561eff4ba1c4b98.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\f6319117288471b42d4935c3972b20fbfbfaad0f4811aaba2561eff4ba1c4b98.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:5016
      • C:\Users\Admin\AppData\Local\Temp\is-JMSFV.tmp\is-1BDSI.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-JMSFV.tmp\is-1BDSI.tmp" /SL4 $D0060 "C:\Users\Admin\AppData\Local\Temp\3582-490\f6319117288471b42d4935c3972b20fbfbfaad0f4811aaba2561eff4ba1c4b98.exe" 5538907 52736
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:428

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\f6319117288471b42d4935c3972b20fbfbfaad0f4811aaba2561eff4ba1c4b98.exe

    Filesize

    5.6MB

    MD5

    bf1028f7deec090b3074f0bf7ddfb799

    SHA1

    9764e4400df757abb43808fbc29b42b99bfcce9c

    SHA256

    4057712e07b99b1faef03be75c63f447f8ed483ee81de6ed03bda65be5fe4c0f

    SHA512

    dfe763ed0a70ad766f98b4f1a094fc18f12f5966abbfc2e63ec45af743ab70b38ebb848862f01bf389627fce0f8b5ccd6f2c6f846547aa3e99dea6ef9d3e98af

  • C:\Users\Admin\AppData\Local\Temp\3582-490\f6319117288471b42d4935c3972b20fbfbfaad0f4811aaba2561eff4ba1c4b98.exe

    Filesize

    5.6MB

    MD5

    bf1028f7deec090b3074f0bf7ddfb799

    SHA1

    9764e4400df757abb43808fbc29b42b99bfcce9c

    SHA256

    4057712e07b99b1faef03be75c63f447f8ed483ee81de6ed03bda65be5fe4c0f

    SHA512

    dfe763ed0a70ad766f98b4f1a094fc18f12f5966abbfc2e63ec45af743ab70b38ebb848862f01bf389627fce0f8b5ccd6f2c6f846547aa3e99dea6ef9d3e98af

  • C:\Users\Admin\AppData\Local\Temp\is-JMSFV.tmp\is-1BDSI.tmp

    Filesize

    659KB

    MD5

    a3f52b5725fbb69b7ce97e1f59e2becf

    SHA1

    385b8a328fdf19d32b0ff05c970348f5c67446fd

    SHA256

    f44e83482ab39151da7f839ea90fffb08b026df5e8e238f923827e818cdcb1b0

    SHA512

    dfcfc641bee2e97e347b17c1be236b256e9a46fe7ae9e41d4c9b8e23e6b5e632d4eaac97456268c5550dacbf2dea46ee42fdfd9c4d366c9b63044ae3e63e92de

  • C:\Users\Admin\AppData\Local\Temp\is-JMSFV.tmp\is-1BDSI.tmp

    Filesize

    659KB

    MD5

    a3f52b5725fbb69b7ce97e1f59e2becf

    SHA1

    385b8a328fdf19d32b0ff05c970348f5c67446fd

    SHA256

    f44e83482ab39151da7f839ea90fffb08b026df5e8e238f923827e818cdcb1b0

    SHA512

    dfcfc641bee2e97e347b17c1be236b256e9a46fe7ae9e41d4c9b8e23e6b5e632d4eaac97456268c5550dacbf2dea46ee42fdfd9c4d366c9b63044ae3e63e92de

  • C:\Users\Admin\AppData\Local\Temp\is-PRHHJ.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Local\Temp\is-PRHHJ.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • memory/428-135-0x0000000000000000-mapping.dmp

  • memory/428-141-0x00000000023E1000-0x00000000023E3000-memory.dmp

    Filesize

    8KB

  • memory/5016-130-0x0000000000000000-mapping.dmp

  • memory/5016-133-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/5016-138-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB