Analysis

  • max time kernel
    104s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 13:46

General

  • Target

    856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.exe

  • Size

    1.8MB

  • MD5

    5388246e17b9da088df5d858c22bfde7

  • SHA1

    839cae7eadb6f602a157cf87d0e03cc1cc21affd

  • SHA256

    856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445

  • SHA512

    d005c2a8d99a2184f562aa791391e66f5a4be87cee41fe39f8185b79c7ec87e35917ff4c768239f6eb48912b28aeb77f764cefb4bd2b493649fe64cb1083b37a

  • SSDEEP

    49152:uHDyaM92XSsudgNlLH35YD/l7m5njFkkdm1rQJ3duRMVdaCSfyzWHWca7:OD5MQSsuyTLHKDFZwq82RwwCjW2R7

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
  • Loads dropped DLL 6 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 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.exe
    "C:\Users\Admin\AppData\Local\Temp\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Users\Admin\AppData\Local\Temp\3582-490\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1284
      • C:\Users\Admin\AppData\Local\Temp\is-98N68.tmp\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-98N68.tmp\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.tmp" /SL5="$A0120,1599817,60928,C:\Users\Admin\AppData\Local\Temp\3582-490\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1308

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.exe

    Filesize

    1.8MB

    MD5

    47ff70b380cdf5c1218d579b6b01b5e2

    SHA1

    3a352006f927e425b94e04c46769f2523288a3af

    SHA256

    6583701d5262d7dfcf85e93257982872d59cd69e884650e541ae5c1fb03086fa

    SHA512

    59f1f9987cafe2e58b92b790847a685cb61162c5c15733582e57b18a15c5af8b47dde0b1f986392dab0133542977f3be49a8999dab89ebfc90f302bc315831c7

  • C:\Users\Admin\AppData\Local\Temp\3582-490\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.exe

    Filesize

    1.8MB

    MD5

    47ff70b380cdf5c1218d579b6b01b5e2

    SHA1

    3a352006f927e425b94e04c46769f2523288a3af

    SHA256

    6583701d5262d7dfcf85e93257982872d59cd69e884650e541ae5c1fb03086fa

    SHA512

    59f1f9987cafe2e58b92b790847a685cb61162c5c15733582e57b18a15c5af8b47dde0b1f986392dab0133542977f3be49a8999dab89ebfc90f302bc315831c7

  • C:\Users\Admin\AppData\Local\Temp\is-98N68.tmp\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.tmp

    Filesize

    694KB

    MD5

    fc175c4d22bfdc5a20ae61247297bea3

    SHA1

    6ffa70bd27a75de184f7ee0e3751dd0e7aa05043

    SHA256

    5213aa6db61639542cd623ec90331b279930d5120d5b548d298ca0b03d18156c

    SHA512

    f0315a73a49602f40f74ffcc99d34dc8e02fd52823648266a7f4aa125b927d83a8aa7a625177e2055838b1dc5f22bf6b28adceef9765f113c7e33b969e33fac5

  • \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\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.exe

    Filesize

    1.8MB

    MD5

    47ff70b380cdf5c1218d579b6b01b5e2

    SHA1

    3a352006f927e425b94e04c46769f2523288a3af

    SHA256

    6583701d5262d7dfcf85e93257982872d59cd69e884650e541ae5c1fb03086fa

    SHA512

    59f1f9987cafe2e58b92b790847a685cb61162c5c15733582e57b18a15c5af8b47dde0b1f986392dab0133542977f3be49a8999dab89ebfc90f302bc315831c7

  • \Users\Admin\AppData\Local\Temp\is-98N68.tmp\856c3b0942ebdc136d4dd01deaa03c12f02475a5f59a4dbd1b9186daeac3d445.tmp

    Filesize

    694KB

    MD5

    fc175c4d22bfdc5a20ae61247297bea3

    SHA1

    6ffa70bd27a75de184f7ee0e3751dd0e7aa05043

    SHA256

    5213aa6db61639542cd623ec90331b279930d5120d5b548d298ca0b03d18156c

    SHA512

    f0315a73a49602f40f74ffcc99d34dc8e02fd52823648266a7f4aa125b927d83a8aa7a625177e2055838b1dc5f22bf6b28adceef9765f113c7e33b969e33fac5

  • \Users\Admin\AppData\Local\Temp\is-9BP6H.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • \Users\Admin\AppData\Local\Temp\is-9BP6H.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-9BP6H.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • memory/1284-62-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/1284-59-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/1284-71-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/1348-54-0x0000000074F41000-0x0000000074F43000-memory.dmp

    Filesize

    8KB