Analysis

  • max time kernel
    110s
  • max time network
    115s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2024 01:10

General

  • Target

    9e90ec0fbcb09abea7ba753c13340723437dcabfee11325ccb13c760930234f5.exe

  • Size

    1.1MB

  • MD5

    5d7b948a847dbd220c4bb1eef51800dc

  • SHA1

    05d8c469e46ce175d7b66b4af184752e2118d2e3

  • SHA256

    9e90ec0fbcb09abea7ba753c13340723437dcabfee11325ccb13c760930234f5

  • SHA512

    22e04911e03fcdead92675aaa1800dcbf26a4715155c27ce1bfac6248fea099946557caf52d52bb8082056b2b2ebe8672fd1b08def57e83b05ddf2fcab3c51c1

  • SSDEEP

    24576:rAOcZEhmmq7Yryvvaysx+C0SUKHjTq6ai0bagi7xa5Wq:t5IvaPxABKHjTq6d4a5wR

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

strongodss.ddns.net:48562

185.19.85.175:48562

Mutex

ba2baad0-dd3f-4844-a1e3-4d042f9ae8b6

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    185.19.85.175

  • backup_dns_server

  • buffer_size

    65538

  • build_time

    2021-04-20T00:12:13.961451136Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    48562

  • default_group

    HOBBIT

  • enable_debug_mode

    true

  • gc_threshold

    1.0485772e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.0485772e+07

  • mutex

    ba2baad0-dd3f-4844-a1e3-4d042f9ae8b6

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    strongodss.ddns.net

  • primary_dns_server

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    false

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8009

Signatures

  • NanoCore

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

  • Nanocore family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 3 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e90ec0fbcb09abea7ba753c13340723437dcabfee11325ccb13c760930234f5.exe
    "C:\Users\Admin\AppData\Local\Temp\9e90ec0fbcb09abea7ba753c13340723437dcabfee11325ccb13c760930234f5.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2096
    • C:\Users\Admin\AppData\Roaming\39027638\jlah.pif
      "C:\Users\Admin\AppData\Roaming\39027638\jlah.pif" lkbjriilda.crm
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2616
      • C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
        3⤵
        • Executes dropped EXE
        • 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:2544
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "IMAP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8353.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2072
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "IMAP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp844E.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8353.tmp

    Filesize

    1KB

    MD5

    95aceabc58acad5d73372b0966ee1b35

    SHA1

    2293b7ad4793cf574b1a5220e85f329b5601040a

    SHA256

    8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

    SHA512

    00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

  • C:\Users\Admin\AppData\Local\Temp\tmp844E.tmp

    Filesize

    1KB

    MD5

    d2d6911d94b06e405e7687a2437eafec

    SHA1

    9f28f9e7d8d5179d44ddaa6ca266984ed7521dea

    SHA256

    2dc87169ad53fbdd7abb08f49777cb8fb05adbff4e6f6616b4c89942af8cad0f

    SHA512

    b5983de701ff98e944283a25f1770c1e792d52148dc1671f1d19203f8b9d10b056abcf79a17ca536a5f88ccf52f6445d8f3e75fce628666640ad8bad697dcfd1

  • C:\Users\Admin\AppData\Roaming\39027638\qjestopcw.iok

    Filesize

    420KB

    MD5

    62a8085ffac783e39c5dfe5d8e45d5b2

    SHA1

    4b4f0210fe85b783e0c9e3792aab7c3b2f657944

    SHA256

    55933b33de23d816190632168e3dbcf5455b2e0100a1aa71a9eb4929becc7867

    SHA512

    c75eb0cb77c278cf5ef3c311ec040c4186277e8a28c088491099a37091fd6233b887b11628cc5d10ece510249eeb3bc3aed8d6cd140968aa2fd928e66ecc65c9

  • C:\Users\Admin\AppData\Roaming\39027638\ungipniv.exe

    Filesize

    65KB

    MD5

    831808ca1f13df608de284cba4d9dfed

    SHA1

    cb9902cc9f49755a592bd1abcfc874725aa8fde3

    SHA256

    a637d08e7c9b55b699ee1097b26b18bf4f4f79d01d464656a51f29b9d0ee773e

    SHA512

    73dda943b1432284d57396d3d1eec68e2cffbf25ff12db44cdf2b5f72d16422d8eca3fcbd0d49ec159e99d48b5c10c16faca0c1468bafe4c4f51cc7fd8b7e232

  • \Users\Admin\AppData\Local\Temp\RegSvcs.exe

    Filesize

    44KB

    MD5

    0e06054beb13192588e745ee63a84173

    SHA1

    30b7d4d1277bafd04a83779fd566a1f834a8d113

    SHA256

    c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

    SHA512

    251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

  • \Users\Admin\AppData\Roaming\39027638\jlah.pif

    Filesize

    758KB

    MD5

    8935e163bb79e8d4b40b73521a06a0d1

    SHA1

    dfd9f6cd5dabf0c2fae0186b5471f025f542c708

    SHA256

    3a2b62144b3b6bc612770de7777233c96ea35e50e9fd7b0b482862825d728fdb

    SHA512

    76620b23fe5f2bcc783bcbd7fb27a68a171751a96b459f757045f80e027d452724c73292a008acad58eb58b6eb99dddf82130a83e761e35b7e5c4d89b058d175

  • memory/2544-85-0x0000000000410000-0x00000000008C1000-memory.dmp

    Filesize

    4.7MB

  • memory/2544-84-0x0000000000410000-0x00000000008C1000-memory.dmp

    Filesize

    4.7MB

  • memory/2544-82-0x0000000000410000-0x00000000008C1000-memory.dmp

    Filesize

    4.7MB

  • memory/2544-87-0x0000000000410000-0x000000000044A000-memory.dmp

    Filesize

    232KB

  • memory/2544-81-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2544-79-0x0000000000410000-0x00000000008C1000-memory.dmp

    Filesize

    4.7MB

  • memory/2544-95-0x00000000002B0000-0x00000000002BA000-memory.dmp

    Filesize

    40KB

  • memory/2544-96-0x00000000002C0000-0x00000000002CC000-memory.dmp

    Filesize

    48KB

  • memory/2544-97-0x00000000002D0000-0x00000000002EE000-memory.dmp

    Filesize

    120KB

  • memory/2544-98-0x0000000000910000-0x000000000091A000-memory.dmp

    Filesize

    40KB