Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    19-01-2025 21:20

General

  • Target

    eda1f9271a18bd14c8e3ccc575ef8da0.exe

  • Size

    1.3MB

  • MD5

    eda1f9271a18bd14c8e3ccc575ef8da0

  • SHA1

    704f796328f013f1ac9d2f82104c254bc96b8130

  • SHA256

    691c9052e43556c9e4fbbec1db2f27bb448bdc3ee6492a648ff0a5b53d35b5e8

  • SHA512

    50874d1629809f4e1c3ebf04ddd5303f21ec30e3f4782c398f369cbc048c7fc63af23e59497815325619a650d724270d498ffbb8feb0a1f11055ab603f8073b1

  • SSDEEP

    24576:gAHnh+eWsN3skA4RV1Hom2KXMmHaH04xmQPD5U:Xh+ZkldoPK8YafxU

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ponnyhurb.duckdns.org:6290

Mutex

b3d970d4-fe05-46df-a7e4-b0e6b6eee3ae

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    ponnyhurb.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-02-04T04:37:36.694334036Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    3992

  • connection_port

    6290

  • default_group

    ponnyhurb.duckdns.org

  • enable_debug_mode

    true

  • gc_threshold

    1.0485783e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    b3d970d4-fe05-46df-a7e4-b0e6b6eee3ae

  • mutex_timeout

    4963

  • prevent_system_sleep

    false

  • primary_connection_host

    ponnyhurb.duckdns.org

  • 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.

  • Nanocore family
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 4 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 13 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 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eda1f9271a18bd14c8e3ccc575ef8da0.exe
    "C:\Users\Admin\AppData\Local\Temp\eda1f9271a18bd14c8e3ccc575ef8da0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2652
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      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:1796
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA9D6.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2820
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAA64.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2844
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn chglogon /tr "C:\Users\Admin\CompatTelRunner\convertvhd.exe" /sc minute /mo 1 /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2732
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {D03D9E14-CA7C-4860-AD8F-E233ACA9D321} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\CompatTelRunner\convertvhd.exe
      C:\Users\Admin\CompatTelRunner\convertvhd.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1832
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1344
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\SysWOW64\schtasks.exe" /create /tn chglogon /tr "C:\Users\Admin\CompatTelRunner\convertvhd.exe" /sc minute /mo 1 /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:816
    • C:\Users\Admin\CompatTelRunner\convertvhd.exe
      C:\Users\Admin\CompatTelRunner\convertvhd.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2344
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1744
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\SysWOW64\schtasks.exe" /create /tn chglogon /tr "C:\Users\Admin\CompatTelRunner\convertvhd.exe" /sc minute /mo 1 /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:788
    • C:\Users\Admin\CompatTelRunner\convertvhd.exe
      C:\Users\Admin\CompatTelRunner\convertvhd.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1288
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA9D6.tmp

    Filesize

    1KB

    MD5

    c6f0625bf4c1cdfb699980c9243d3b22

    SHA1

    43de1fe580576935516327f17b5da0c656c72851

    SHA256

    8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

    SHA512

    9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

  • C:\Users\Admin\AppData\Local\Temp\tmpAA64.tmp

    Filesize

    1KB

    MD5

    bbb0d424bb7cb3b0e6aeb68cf82b8f5f

    SHA1

    7e95dcd21a27ee53e5c23ed5a163df56a43d572a

    SHA256

    08d6bee474edf0151a0d8ff942ba9e6a1efe069585c63477abd1c7bd8046e130

    SHA512

    0dc790a415f9717f6e7633c1d5f2749a2eca5582c5bbe114119c3ddba6d4e4d0df48029622e2fe07f94d8ae97c334b88691b7721da50ada261449769ae31d466

  • C:\Users\Admin\CompatTelRunner\convertvhd.exe

    Filesize

    1.3MB

    MD5

    b4c4b54224a187e23dfc81804f3053bd

    SHA1

    fa7344721c2154c62dcbd5eabc2d765fa7394f2e

    SHA256

    c3e9bfdcb6058ba6347453517a197b7ae82c2ed3dbd09d7ca45bebb64def0ccd

    SHA512

    2c9cd2e2acec5cad12c885caa8a181bdcc761d0aa887b0b3bb805b2ec5c6f01302aaf92819a9bb43d3e52dffa3ffb7fe4ca7f9ab75ffef1c672953f21bc339f7

  • memory/1344-27-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1344-34-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1344-33-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1796-19-0x00000000745C0000-0x0000000074B6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1796-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1796-1-0x0000000000090000-0x00000000000C8000-memory.dmp

    Filesize

    224KB

  • memory/1796-10-0x0000000000090000-0x00000000000C8000-memory.dmp

    Filesize

    224KB

  • memory/1796-20-0x00000000745C2000-0x00000000745C4000-memory.dmp

    Filesize

    8KB

  • memory/1796-21-0x00000000745C0000-0x0000000074B6B000-memory.dmp

    Filesize

    5.7MB

  • memory/1796-11-0x00000000745C2000-0x00000000745C4000-memory.dmp

    Filesize

    8KB

  • memory/1796-3-0x0000000000090000-0x00000000000C8000-memory.dmp

    Filesize

    224KB

  • memory/1796-9-0x0000000000090000-0x00000000000C8000-memory.dmp

    Filesize

    224KB

  • memory/2652-0-0x00000000001A0000-0x00000000001A1000-memory.dmp

    Filesize

    4KB