Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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.

  • 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).

  • 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 19 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 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⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:500
    • 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:3080
    • 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:5888
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hXGmUcb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp554F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:6016
    • 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:5532
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1324 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2600

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ehlim0sk.ns0.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp554F.tmp

      Filesize

      1KB

      MD5

      61b141850a0a8c43f00765dca2893029

      SHA1

      8495a66c52945493c52a0f433cd439cdcc5922a1

      SHA256

      41e3f677483dc3bb7b2053ba51ba40a08f2ccc1b750a72aa0b53479b3e0553c8

      SHA512

      5585899182b663b5847cc66d1a78bcdd53a87767df65738eaa95b57a86e9dd701078e396e438d2c99dc5c8b2e87cd82e63de2f92c608c5d9654405e52a8194a2

    • memory/500-8-0x0000000009890000-0x000000000990A000-memory.dmp

      Filesize

      488KB

    • memory/500-4-0x00000000056D0000-0x00000000056E0000-memory.dmp

      Filesize

      64KB

    • memory/500-5-0x00000000056A0000-0x00000000056AA000-memory.dmp

      Filesize

      40KB

    • memory/500-6-0x00000000059C0000-0x00000000059E0000-memory.dmp

      Filesize

      128KB

    • memory/500-7-0x0000000005C00000-0x0000000005C14000-memory.dmp

      Filesize

      80KB

    • memory/500-3-0x0000000005710000-0x00000000057A2000-memory.dmp

      Filesize

      584KB

    • memory/500-9-0x000000000C9C0000-0x000000000CA5C000-memory.dmp

      Filesize

      624KB

    • memory/500-13-0x0000000074D00000-0x00000000754B0000-memory.dmp

      Filesize

      7.7MB

    • memory/500-0-0x0000000074D00000-0x00000000754B0000-memory.dmp

      Filesize

      7.7MB

    • memory/500-49-0x0000000074D00000-0x00000000754B0000-memory.dmp

      Filesize

      7.7MB

    • memory/500-2-0x0000000005C20000-0x00000000061C4000-memory.dmp

      Filesize

      5.6MB

    • memory/500-1-0x0000000000C40000-0x0000000000CEC000-memory.dmp

      Filesize

      688KB

    • memory/500-18-0x00000000056D0000-0x00000000056E0000-memory.dmp

      Filesize

      64KB

    • memory/3080-100-0x0000000074D00000-0x00000000754B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3080-16-0x0000000074D00000-0x00000000754B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3080-95-0x0000000074D00000-0x00000000754B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3080-19-0x0000000004750000-0x0000000004760000-memory.dmp

      Filesize

      64KB

    • memory/3080-94-0x0000000007340000-0x0000000007348000-memory.dmp

      Filesize

      32KB

    • memory/3080-17-0x0000000004750000-0x0000000004760000-memory.dmp

      Filesize

      64KB

    • memory/3080-93-0x0000000007360000-0x000000000737A000-memory.dmp

      Filesize

      104KB

    • memory/3080-89-0x00000000072A0000-0x0000000007336000-memory.dmp

      Filesize

      600KB

    • memory/3080-48-0x0000000005760000-0x0000000005AB4000-memory.dmp

      Filesize

      3.3MB

    • memory/3080-62-0x0000000006C90000-0x0000000006CC2000-memory.dmp

      Filesize

      200KB

    • memory/3080-85-0x0000000007660000-0x0000000007CDA000-memory.dmp

      Filesize

      6.5MB

    • memory/3080-27-0x00000000056F0000-0x0000000005756000-memory.dmp

      Filesize

      408KB

    • memory/3080-86-0x0000000007020000-0x000000000703A000-memory.dmp

      Filesize

      104KB

    • memory/3080-61-0x000000007F340000-0x000000007F350000-memory.dmp

      Filesize

      64KB

    • memory/3080-84-0x0000000006EE0000-0x0000000006F83000-memory.dmp

      Filesize

      652KB

    • memory/3080-56-0x0000000005DC0000-0x0000000005E0C000-memory.dmp

      Filesize

      304KB

    • memory/3080-66-0x00000000713B0000-0x00000000713FC000-memory.dmp

      Filesize

      304KB

    • memory/3080-14-0x0000000004760000-0x0000000004796000-memory.dmp

      Filesize

      216KB

    • memory/3080-58-0x0000000004750000-0x0000000004760000-memory.dmp

      Filesize

      64KB

    • memory/5532-55-0x0000000005F20000-0x0000000005F3E000-memory.dmp

      Filesize

      120KB

    • memory/5532-112-0x0000000006890000-0x000000000689E000-memory.dmp

      Filesize

      56KB

    • memory/5532-57-0x0000000005F60000-0x0000000005F6A000-memory.dmp

      Filesize

      40KB

    • memory/5532-103-0x00000000067C0000-0x00000000067D2000-memory.dmp

      Filesize

      72KB

    • memory/5532-54-0x00000000052E0000-0x00000000052EA000-memory.dmp

      Filesize

      40KB

    • memory/5532-105-0x0000000006800000-0x000000000680E000-memory.dmp

      Filesize

      56KB

    • memory/5532-106-0x0000000006810000-0x0000000006822000-memory.dmp

      Filesize

      72KB

    • memory/5532-107-0x0000000006820000-0x000000000682C000-memory.dmp

      Filesize

      48KB

    • memory/5532-108-0x0000000006830000-0x000000000683E000-memory.dmp

      Filesize

      56KB

    • memory/5532-50-0x0000000005180000-0x0000000005190000-memory.dmp

      Filesize

      64KB

    • memory/5532-109-0x0000000006840000-0x0000000006854000-memory.dmp

      Filesize

      80KB

    • memory/5532-47-0x0000000074D00000-0x00000000754B0000-memory.dmp

      Filesize

      7.7MB

    • memory/5532-110-0x0000000006850000-0x0000000006860000-memory.dmp

      Filesize

      64KB

    • memory/5532-113-0x00000000068A0000-0x00000000068CE000-memory.dmp

      Filesize

      184KB

    • memory/5532-111-0x0000000006870000-0x0000000006884000-memory.dmp

      Filesize

      80KB

    • memory/5532-26-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/5532-104-0x00000000067D0000-0x00000000067EA000-memory.dmp

      Filesize

      104KB

    • memory/5532-101-0x0000000074D00000-0x00000000754B0000-memory.dmp

      Filesize

      7.7MB

    • memory/5888-22-0x0000000002DE0000-0x0000000002DF0000-memory.dmp

      Filesize

      64KB

    • memory/5888-99-0x0000000074D00000-0x00000000754B0000-memory.dmp

      Filesize

      7.7MB

    • memory/5888-21-0x0000000074D00000-0x00000000754B0000-memory.dmp

      Filesize

      7.7MB

    • memory/5888-20-0x0000000005870000-0x0000000005E98000-memory.dmp

      Filesize

      6.2MB

    • memory/5888-25-0x0000000005FA0000-0x0000000006006000-memory.dmp

      Filesize

      408KB

    • memory/5888-92-0x0000000007BC0000-0x0000000007BD4000-memory.dmp

      Filesize

      80KB

    • memory/5888-91-0x0000000007BB0000-0x0000000007BBE000-memory.dmp

      Filesize

      56KB

    • memory/5888-59-0x0000000002DE0000-0x0000000002DF0000-memory.dmp

      Filesize

      64KB

    • memory/5888-90-0x0000000007B80000-0x0000000007B91000-memory.dmp

      Filesize

      68KB

    • memory/5888-88-0x00000000079F0000-0x00000000079FA000-memory.dmp

      Filesize

      40KB

    • memory/5888-24-0x0000000005ED0000-0x0000000005EF2000-memory.dmp

      Filesize

      136KB

    • memory/5888-60-0x000000007FC40000-0x000000007FC50000-memory.dmp

      Filesize

      64KB

    • memory/5888-53-0x0000000006670000-0x000000000668E000-memory.dmp

      Filesize

      120KB

    • memory/5888-63-0x00000000713B0000-0x00000000713FC000-memory.dmp

      Filesize

      304KB

    • memory/5888-74-0x00000000075E0000-0x00000000075FE000-memory.dmp

      Filesize

      120KB