Analysis

  • max time kernel
    119s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-04-2024 08:06

General

  • Target

    PROOF OF PAYMENT.scr.exe

  • Size

    670KB

  • MD5

    11b19b59f657910f0af49721a77bc2dd

  • SHA1

    3078779d892bd96e5dfddb76d491f52eefd39a2d

  • SHA256

    c03858657307a20f2da776ba010c76495276e80306c19b70f44342c8bcaece85

  • SHA512

    de92458acc1341bd5db1ca3f5542339c5e06dac938903efc9c9eeca234058a92fb1e99bdb94c547a7126dfe033c300beb5a8ef3ca63dcb61bb6dbd397b7602e2

  • SSDEEP

    12288:EWYIPXjxannnHg2g2Qsj2kGPBjQW/dAOAbnB4BziHmBOXB3NEqRFnj7Qu4YCgca:EWYIPFannnHg2F2kUBjB8B4BOHLXcqbh

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

amechi.duckdns.org:3190

Mutex

3ccbc5bb-95bf-4854-a1cd-6f73b82adcba

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    amechi.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-02-04T08:58:27.782943536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3190

  • default_group

    GLORY

  • 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

    3ccbc5bb-95bf-4854-a1cd-6f73b82adcba

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    amechi.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.

  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PROOF OF PAYMENT.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\PROOF OF PAYMENT.scr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2972
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PROOF OF PAYMENT.scr.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2624
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hXGmUcb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2704
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hXGmUcb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4CF8.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2732
    • C:\Users\Admin\AppData\Local\Temp\PROOF OF PAYMENT.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\PROOF OF PAYMENT.scr.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2456

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4CF8.tmp

    Filesize

    1KB

    MD5

    c456add6ad59576f2037e540cfaa97ea

    SHA1

    03bcba4d5ba09effe878d8017855912a93335774

    SHA256

    113aed93c3b60ae1342b5a4f8dcb509767e1edfb72f695c25dbaf874a2a67a91

    SHA512

    d846ebbd3b4b4ef92bff425f62d949aeabd6dd7aaa8740f7cd42b2cd1fe8a8de79297e651ecd95cbc0de0e43fe11bcd91205a99ca37394c1793deb94cb4e1d9a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\H97CD0VR7R5OFFP3ZBJ1.temp

    Filesize

    7KB

    MD5

    ba257e0457ef70df3d33fd32ec83b772

    SHA1

    c4d49520897241dfebe30d5e4727fe9ef8ebbaa8

    SHA256

    f64ccd63e69a78a628b8457eb1c405e1f237b0fa3552ca5340360dc35dfd13bb

    SHA512

    10a6d73a953665f2cc5f8bb4ba9be293e57446590c03afd2b4ed4fc337e1d6d5da97d1cd7801b951d280a9c2fb740c0cadaafd091f0f7fb13349940e6a8071e8

  • memory/2456-48-0x0000000000700000-0x0000000000712000-memory.dmp

    Filesize

    72KB

  • memory/2456-20-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2456-65-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2456-59-0x00000000022E0000-0x00000000022F4000-memory.dmp

    Filesize

    80KB

  • memory/2456-58-0x0000000004E60000-0x0000000004E8E000-memory.dmp

    Filesize

    184KB

  • memory/2456-38-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2456-18-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2456-57-0x0000000002280000-0x000000000228E000-memory.dmp

    Filesize

    56KB

  • memory/2456-21-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2456-22-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2456-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2456-25-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2456-27-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2456-29-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2456-56-0x0000000002270000-0x0000000002284000-memory.dmp

    Filesize

    80KB

  • memory/2456-55-0x0000000000DB0000-0x0000000000DC0000-memory.dmp

    Filesize

    64KB

  • memory/2456-54-0x0000000000DA0000-0x0000000000DB4000-memory.dmp

    Filesize

    80KB

  • memory/2456-53-0x0000000000D90000-0x0000000000D9E000-memory.dmp

    Filesize

    56KB

  • memory/2456-52-0x0000000000D80000-0x0000000000D8C000-memory.dmp

    Filesize

    48KB

  • memory/2456-51-0x0000000000D30000-0x0000000000D42000-memory.dmp

    Filesize

    72KB

  • memory/2456-50-0x00000000009B0000-0x00000000009BE000-memory.dmp

    Filesize

    56KB

  • memory/2456-49-0x0000000000D10000-0x0000000000D2A000-memory.dmp

    Filesize

    104KB

  • memory/2456-43-0x0000000000560000-0x000000000056A000-memory.dmp

    Filesize

    40KB

  • memory/2456-41-0x0000000000450000-0x000000000045A000-memory.dmp

    Filesize

    40KB

  • memory/2456-42-0x0000000000540000-0x000000000055E000-memory.dmp

    Filesize

    120KB

  • memory/2624-35-0x0000000002CE0000-0x0000000002D20000-memory.dmp

    Filesize

    256KB

  • memory/2624-33-0x0000000002CE0000-0x0000000002D20000-memory.dmp

    Filesize

    256KB

  • memory/2624-36-0x0000000002CE0000-0x0000000002D20000-memory.dmp

    Filesize

    256KB

  • memory/2624-32-0x000000006FAC0000-0x000000007006B000-memory.dmp

    Filesize

    5.7MB

  • memory/2624-45-0x000000006FAC0000-0x000000007006B000-memory.dmp

    Filesize

    5.7MB

  • memory/2704-34-0x000000006FAC0000-0x000000007006B000-memory.dmp

    Filesize

    5.7MB

  • memory/2704-44-0x000000006FAC0000-0x000000007006B000-memory.dmp

    Filesize

    5.7MB

  • memory/2704-37-0x00000000029D0000-0x0000000002A10000-memory.dmp

    Filesize

    256KB

  • memory/2704-31-0x000000006FAC0000-0x000000007006B000-memory.dmp

    Filesize

    5.7MB

  • memory/2972-3-0x0000000000620000-0x0000000000640000-memory.dmp

    Filesize

    128KB

  • memory/2972-0-0x0000000000DC0000-0x0000000000E6C000-memory.dmp

    Filesize

    688KB

  • memory/2972-30-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2972-5-0x00000000059F0000-0x0000000005A6A000-memory.dmp

    Filesize

    488KB

  • memory/2972-2-0x0000000004C60000-0x0000000004CA0000-memory.dmp

    Filesize

    256KB

  • memory/2972-1-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2972-4-0x0000000000640000-0x0000000000654000-memory.dmp

    Filesize

    80KB