Analysis

  • max time kernel
    153s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-10-2022 17:19

General

  • Target

    2bcd2cd9b7ba2e16ee457931ea8cb0b188655aacd4d7516fc5589009b7199a01.exe

  • Size

    1.1MB

  • MD5

    b4733e911f3e2e9ecde05cd2f5106b28

  • SHA1

    da0fd8a7bd060292ba75e379c62c940e7de11b17

  • SHA256

    2bcd2cd9b7ba2e16ee457931ea8cb0b188655aacd4d7516fc5589009b7199a01

  • SHA512

    bd86cebb93cc757c48ae58ee2584f41ec52952d8d22306aa9c9e9ab719f68701c036a5f42dbe4e983437d88e8f1ca70b228cc35e9dd779e10c1d4e6f1c5b8859

  • SSDEEP

    24576:0AOcZ2i759JjImFgQB/QaJRZylYglQTQD3tAFRosq:iS96JQB/5ZylYgaGtArZq

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

jasonbourne.bounceme.net:4032

127.0.0.1:4032

Mutex

9c6d4c8a-884b-4287-8ce0-7edf4a237b07

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-06-24T09:47:26.371156736Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4032

  • default_group

    X File

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    9c6d4c8a-884b-4287-8ce0-7edf4a237b07

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    jasonbourne.bounceme.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

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

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2bcd2cd9b7ba2e16ee457931ea8cb0b188655aacd4d7516fc5589009b7199a01.exe
    "C:\Users\Admin\AppData\Local\Temp\2bcd2cd9b7ba2e16ee457931ea8cb0b188655aacd4d7516fc5589009b7199a01.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4976
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\temp\8_16\ioph.vbe"
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3644
      • C:\Users\Admin\AppData\Local\Temp\8_16\mvrhic.exe
        "C:\Users\Admin\AppData\Local\Temp\8_16\mvrhic.exe" gvooo.gcv
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1516
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          4⤵
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3840
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "DDP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5D62.tmp"
            5⤵
            • Creates scheduled task(s)
            PID:1416
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "DDP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5F09.tmp"
            5⤵
            • Creates scheduled task(s)
            PID:4740

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\8_16\gvooo.gcv

    Filesize

    98.6MB

    MD5

    a929d147bd552d23287515a577c1e756

    SHA1

    82edddd779b245108043b5a317be1918f1e8c546

    SHA256

    74821f38593d876d658c0207ce94bd341949435b81b50518fa305767663ce39c

    SHA512

    398656b9e48c125a86b77d2d3838c32797760ea3bdd289d10b2f44ec8c26c1777a4ff55c7c3d16c21c0de2b3151c8a27826c73c92bfa15169836ef22ad6e451f

  • C:\Users\Admin\AppData\Local\Temp\8_16\hqqqdurddh.dll

    Filesize

    45KB

    MD5

    11c4258fae4132483ae587cfa06b10ae

    SHA1

    497b09bfe0792bedb0587cecbb344939e9a99f34

    SHA256

    115229acb4316435cffaa2725b8ba660c17fb073d8fbe28e52e008b15543b76e

    SHA512

    3b222a55b9fc13f49159030921ebbcc3aee1b8763447a7cdf1f6cecc5b6ad9d8dba091ac2067e220074137b9d709791e3b48cc508649290ff2c68ff06736aed6

  • C:\Users\Admin\AppData\Local\Temp\8_16\mvrhic.exe

    Filesize

    1.1MB

    MD5

    7e849c0f23d25130da6e79b4e31c7a13

    SHA1

    8a7e6683f9643addbd5eeb5f11c686a7f03c951b

    SHA256

    b93035f0e55b1034d8e3d412bd9279b5e3021100c42d292b7929fd7f62901187

    SHA512

    e94eca514f970acbad039b9bdd2183a8c7c5e2123608714e6311aadc20660491a86bd10a8172d109d46348da00676a808da603620fff181601dbaa2e777e3379

  • C:\Users\Admin\AppData\Local\Temp\8_16\mvrhic.exe

    Filesize

    1.1MB

    MD5

    7e849c0f23d25130da6e79b4e31c7a13

    SHA1

    8a7e6683f9643addbd5eeb5f11c686a7f03c951b

    SHA256

    b93035f0e55b1034d8e3d412bd9279b5e3021100c42d292b7929fd7f62901187

    SHA512

    e94eca514f970acbad039b9bdd2183a8c7c5e2123608714e6311aadc20660491a86bd10a8172d109d46348da00676a808da603620fff181601dbaa2e777e3379

  • C:\Users\Admin\AppData\Local\Temp\8_16\surlhhtvn.cpl

    Filesize

    406KB

    MD5

    e454b076fe7207baf7bff4e63dd68505

    SHA1

    561886a7b8367a50221bac48ac76cd39c79326d2

    SHA256

    a165db7b671c66380e5ccbea689e7e8200bbc6ac16594321853d9ed850a6946a

    SHA512

    7b45b66e87b9e18eea49b0dc287ee1308512ff890e28fb2062267accf668e2d8319ce8171a86bd254c422e9acf1a5c2d28b22f91012ecac990a689206bd0b3ae

  • C:\Users\Admin\AppData\Local\Temp\tmp5D62.tmp

    Filesize

    1KB

    MD5

    8cad1b41587ced0f1e74396794f31d58

    SHA1

    11054bf74fcf5e8e412768035e4dae43aa7b710f

    SHA256

    3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

    SHA512

    99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

  • C:\Users\Admin\AppData\Local\Temp\tmp5F09.tmp

    Filesize

    1KB

    MD5

    677848190631e19222304d1982aa2e1b

    SHA1

    bed6cf97d3458e4ea59ff9823375d915a9b3d682

    SHA256

    8bcf16c788d228932fa707bb4250c05151e099bdf7040adc717e53680601be3d

    SHA512

    f5d41e150011bc63f4c95799e21fe91ffaa25eb05f4ca46ea89f3a3ca5325413ba4e0b7b5d69c0bc189955f3308c4928016a7cc1d6f7c2352639106952e92b1e

  • C:\Users\Admin\AppData\Local\temp\8_16\ioph.vbe

    Filesize

    25KB

    MD5

    37d66ad4e808f22215a2d176f079009a

    SHA1

    cbb36ecd56b54b92bf9d89ea92f8107c474608f7

    SHA256

    a89a9287cb9fa2326af7edc414a6f6e2382030332d690f603bbb88f1bca99c25

    SHA512

    d3939fbef1231b66ea58ace89e86494c08142e800d95e988f71a73e79ee561a2829928e46b9ab5c576ac4bf341d81fedd1e91b3326d9356da8ac87a95e4f785c

  • memory/1416-147-0x0000000000000000-mapping.dmp

  • memory/1516-135-0x0000000000000000-mapping.dmp

  • memory/3644-132-0x0000000000000000-mapping.dmp

  • memory/3840-141-0x000000000131E792-mapping.dmp

  • memory/3840-142-0x0000000001300000-0x0000000001338000-memory.dmp

    Filesize

    224KB

  • memory/3840-143-0x0000000006700000-0x0000000006CA4000-memory.dmp

    Filesize

    5.6MB

  • memory/3840-144-0x0000000006010000-0x00000000060A2000-memory.dmp

    Filesize

    584KB

  • memory/3840-145-0x00000000061F0000-0x000000000628C000-memory.dmp

    Filesize

    624KB

  • memory/3840-146-0x00000000060B0000-0x00000000060BA000-memory.dmp

    Filesize

    40KB

  • memory/3840-140-0x0000000001300000-0x0000000001918000-memory.dmp

    Filesize

    6.1MB

  • memory/3840-151-0x0000000007A40000-0x0000000007AA6000-memory.dmp

    Filesize

    408KB

  • memory/4740-149-0x0000000000000000-mapping.dmp