Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-08-2024 12:38

General

  • Target

    Quotation Request ~ RFQ#200420.exe

  • Size

    432KB

  • MD5

    7917f4140ed56d6a34a89ba9e6b7bc85

  • SHA1

    ce93f7c41aab0384900c28423274bb12ea70381b

  • SHA256

    523e47e96043b4e5ff372230e6fbdf6a56f6e8fcf95fcd94d4a976d95471e54c

  • SHA512

    50a8b5318fc4a396ba51bb0c486b915d867cd8582786d6d8d3555646798d7e7c2ff625407962b78822f21d6eb8aca9e8fb1072fa452421949ed301031511ed5b

  • SSDEEP

    6144:nUNYOwDWlT9w0eM86ThuuAuzdWcfSSyCw9kzayhwvUuh+8HPy2Wv:n6lRw88uNt0cRkqayhwvUc+8vre

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

onyeotit.ddns.net:1156

185.165.153.33:1156

Mutex

0e42f0b1-43e9-441c-a956-8a706549057d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.165.153.33

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-02-29T01:22:33.815597636Z

  • 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

    1156

  • default_group

    MORE

  • 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

    0e42f0b1-43e9-441c-a956-8a706549057d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    onyeotit.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation Request ~ RFQ#200420.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation Request ~ RFQ#200420.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2496
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rdKjrEV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD225.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:232
    • C:\Users\Admin\AppData\Local\Temp\Quotation Request ~ RFQ#200420.exe
      "{path}"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2312
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD774.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1052
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "WAN Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD831.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Quotation Request ~ RFQ#200420.exe.log

    Filesize

    496B

    MD5

    926dc4ed07c7e7cff626d6a27b21ee54

    SHA1

    ee8d10180910eb5ef79f39dac687466922f76a4f

    SHA256

    873859cc03fdf5c20cd6f1c634234e9e00cb87f6a0634efbb7c2e18dc108bd5e

    SHA512

    6a3b840ce1788b49c7454901cc2eefe2f0a2c8b091776a7314bdc4552ebd777078c7b20d6e7af0b4427f81b9974251d5ba5a2473ee79613e5df287e8356d4c8e

  • C:\Users\Admin\AppData\Local\Temp\tmpD225.tmp

    Filesize

    1KB

    MD5

    43b2074c90704540a30adf6a2550fe20

    SHA1

    ef8df0cd9a949a3e03bdd484903b6ec2abd84c8a

    SHA256

    95b27d7f76052153ed10c95b03ace4f1f0571cfd4fc88a8e4b7c6b8a9af18dae

    SHA512

    ea37aec6eb93544c6a13652e08d3a62676e0e99b999676a77a275d6b3c797486088a13b579493cf65d7d552bf73330ed0a92a8b4382626712571857b7b6268bf

  • C:\Users\Admin\AppData\Local\Temp\tmpD774.tmp

    Filesize

    1KB

    MD5

    dbbdcd1f11a686f2348e32bb65982d50

    SHA1

    aaa60aec16b57cdcfcb8f2327995a5fa5db7a03f

    SHA256

    6565fd7395b3651cd44aebf42ec1ce46958004e0c68fad9876cb8284d3b5c99b

    SHA512

    4ba84bd5fed87dfa2d1e80d1d7668dc679a9e8b68c80bbb7629aaba4d7306a8fe8e946fdaf67519dd4604faec20ac05914167d96ca3bcbc15f1ac45ab14e85f4

  • C:\Users\Admin\AppData\Local\Temp\tmpD831.tmp

    Filesize

    1KB

    MD5

    02783aa0d9a1a2104300bdd910c9b6dc

    SHA1

    0c8409582f9e606183eca539cc493d82983a0fb0

    SHA256

    59a13383f0495d96e868a7f41557d17f5afe15ce5548d7cc6c7501f6095f68fb

    SHA512

    11ef8bceddd6c0dc0ecec3e5bfbabba4595368b8b9be01a38ccbeaa509b7f99960fea6bbd83a37ea9807f79a5db08cdba1ec8ac85443ffdc3c0f204760153854

  • memory/2312-8-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2312-12-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2312-13-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2312-21-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2312-22-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2312-23-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2496-2-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2496-1-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2496-11-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2496-0-0x0000000074D02000-0x0000000074D03000-memory.dmp

    Filesize

    4KB