Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    21-10-2021 09:33

General

  • Target

    201e9ae321377c18400c09ff75c9aee6.exe

  • Size

    1.4MB

  • MD5

    201e9ae321377c18400c09ff75c9aee6

  • SHA1

    22402aee8967bb97e65cdc7a2b1fd051d4599bba

  • SHA256

    d0086a02cd46959e9e0e7309a97a5ab08ff482262406bfd7e35fe6351f98c124

  • SHA512

    1a865fadc93b6f95554ca6940712b181f057da66ac73e28c22fe1f1838cd12016f28ca5f05241a3f4778d34609e857913c3e1063f59ce3ba9ea7ac5d0a5909d4

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

newme122.3utilities.com:8822

newme1122.3utilities.com:8822

Mutex

dcf3fee6-c103-45ee-a2f0-f8afaa78d1fe

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    newme1122.3utilities.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-31T13:00:17.372768836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8822

  • default_group

    A New TIme Has Come

  • 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

    dcf3fee6-c103-45ee-a2f0-f8afaa78d1fe

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    newme122.3utilities.com

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • 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.

  • suricata: ET MALWARE Possible NanoCore C2 60B

    suricata: ET MALWARE Possible NanoCore C2 60B

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\201e9ae321377c18400c09ff75c9aee6.exe
    "C:\Users\Admin\AppData\Local\Temp\201e9ae321377c18400c09ff75c9aee6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1328
    • C:\Users\Admin\04687118\vfqftjs.pif
      "C:\Users\Admin\04687118\vfqftjs.pif" benowsto.dso
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:656
      • C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
        3⤵
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1832

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\04687118\benowsto.dso
    MD5

    51853c9a0e0b028b6027d4254a053009

    SHA1

    09af088fbb6cbd981b432cb0485c281236f3de32

    SHA256

    bca12808ccc47b7ac76d98cc2ac9ab4c8a69688a8076d2e2d52049528dce16a3

    SHA512

    046260a1a942ab23eaf952d73a3610617256675efca7228ee2e7a005889e7f20c5c222a3d4429e3a600fbd0d991d77e930f931c9bb74cb867b57b8373c1c2a8b

  • C:\Users\Admin\04687118\htdvvtoec.cpl
    MD5

    7ed530856ca49cc6e529fde187cafa69

    SHA1

    45decbe54611c757d6ff1897cc5d8736663a235e

    SHA256

    b7dcb66c6681eca56a487148033d518dcf6bbc9f8daeb36065a62300bbf6bf18

    SHA512

    f653a02643cd32bd2c330c0a3e775ef518364229979a730e549a2bae4c2dd203b24e32b28572a8bfad81141cb0147e22fa177102a9428561b330554f51c5347a

  • C:\Users\Admin\04687118\vfqftjs.pif
    MD5

    8935e163bb79e8d4b40b73521a06a0d1

    SHA1

    dfd9f6cd5dabf0c2fae0186b5471f025f542c708

    SHA256

    3a2b62144b3b6bc612770de7777233c96ea35e50e9fd7b0b482862825d728fdb

    SHA512

    76620b23fe5f2bcc783bcbd7fb27a68a171751a96b459f757045f80e027d452724c73292a008acad58eb58b6eb99dddf82130a83e761e35b7e5c4d89b058d175

  • C:\Users\Admin\04687118\xekts.rve
    MD5

    9a23a74450492ba99ed6e21118519974

    SHA1

    097ebe56f9b80153cc85a9967a759a590c3e2fcd

    SHA256

    2afd228cda8311585ceada01a515dc32f21fc87e31b2c3eaec6fadb489779cbc

    SHA512

    e1885d3657275d8e70f0f61ac0a6af6c9202e233def34e820fb9054ab07f0b73c83edc667787263e3a29933fefa24d027cd61b14d3c156ece15692b9d8561511

  • C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
    MD5

    0e06054beb13192588e745ee63a84173

    SHA1

    30b7d4d1277bafd04a83779fd566a1f834a8d113

    SHA256

    c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

    SHA512

    251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

  • C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
    MD5

    0e06054beb13192588e745ee63a84173

    SHA1

    30b7d4d1277bafd04a83779fd566a1f834a8d113

    SHA256

    c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

    SHA512

    251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

  • \Users\Admin\04687118\vfqftjs.pif
    MD5

    8935e163bb79e8d4b40b73521a06a0d1

    SHA1

    dfd9f6cd5dabf0c2fae0186b5471f025f542c708

    SHA256

    3a2b62144b3b6bc612770de7777233c96ea35e50e9fd7b0b482862825d728fdb

    SHA512

    76620b23fe5f2bcc783bcbd7fb27a68a171751a96b459f757045f80e027d452724c73292a008acad58eb58b6eb99dddf82130a83e761e35b7e5c4d89b058d175

  • \Users\Admin\04687118\vfqftjs.pif
    MD5

    8935e163bb79e8d4b40b73521a06a0d1

    SHA1

    dfd9f6cd5dabf0c2fae0186b5471f025f542c708

    SHA256

    3a2b62144b3b6bc612770de7777233c96ea35e50e9fd7b0b482862825d728fdb

    SHA512

    76620b23fe5f2bcc783bcbd7fb27a68a171751a96b459f757045f80e027d452724c73292a008acad58eb58b6eb99dddf82130a83e761e35b7e5c4d89b058d175

  • \Users\Admin\04687118\vfqftjs.pif
    MD5

    8935e163bb79e8d4b40b73521a06a0d1

    SHA1

    dfd9f6cd5dabf0c2fae0186b5471f025f542c708

    SHA256

    3a2b62144b3b6bc612770de7777233c96ea35e50e9fd7b0b482862825d728fdb

    SHA512

    76620b23fe5f2bcc783bcbd7fb27a68a171751a96b459f757045f80e027d452724c73292a008acad58eb58b6eb99dddf82130a83e761e35b7e5c4d89b058d175

  • \Users\Admin\04687118\vfqftjs.pif
    MD5

    8935e163bb79e8d4b40b73521a06a0d1

    SHA1

    dfd9f6cd5dabf0c2fae0186b5471f025f542c708

    SHA256

    3a2b62144b3b6bc612770de7777233c96ea35e50e9fd7b0b482862825d728fdb

    SHA512

    76620b23fe5f2bcc783bcbd7fb27a68a171751a96b459f757045f80e027d452724c73292a008acad58eb58b6eb99dddf82130a83e761e35b7e5c4d89b058d175

  • \Users\Admin\AppData\Local\Temp\RegSvcs.exe
    MD5

    0e06054beb13192588e745ee63a84173

    SHA1

    30b7d4d1277bafd04a83779fd566a1f834a8d113

    SHA256

    c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

    SHA512

    251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

  • memory/656-59-0x0000000000000000-mapping.dmp
  • memory/1328-54-0x0000000075821000-0x0000000075823000-memory.dmp
    Filesize

    8KB

  • memory/1832-71-0x00000000003F0000-0x000000000098B000-memory.dmp
    Filesize

    5.6MB

  • memory/1832-78-0x0000000000E90000-0x0000000000E97000-memory.dmp
    Filesize

    28KB

  • memory/1832-68-0x000000000040E792-mapping.dmp
  • memory/1832-66-0x00000000003F0000-0x000000000098B000-memory.dmp
    Filesize

    5.6MB

  • memory/1832-73-0x0000000005350000-0x0000000005351000-memory.dmp
    Filesize

    4KB

  • memory/1832-74-0x0000000000A70000-0x0000000000A75000-memory.dmp
    Filesize

    20KB

  • memory/1832-75-0x0000000000BB0000-0x0000000000BBD000-memory.dmp
    Filesize

    52KB

  • memory/1832-76-0x0000000000BD0000-0x0000000000BE5000-memory.dmp
    Filesize

    84KB

  • memory/1832-77-0x0000000000BC0000-0x0000000000BC6000-memory.dmp
    Filesize

    24KB

  • memory/1832-67-0x00000000003F0000-0x000000000098B000-memory.dmp
    Filesize

    5.6MB

  • memory/1832-80-0x0000000000EB0000-0x0000000000EBD000-memory.dmp
    Filesize

    52KB

  • memory/1832-79-0x0000000000EA0000-0x0000000000EA6000-memory.dmp
    Filesize

    24KB

  • memory/1832-81-0x0000000000EC0000-0x0000000000EC9000-memory.dmp
    Filesize

    36KB

  • memory/1832-82-0x0000000001080000-0x000000000108F000-memory.dmp
    Filesize

    60KB

  • memory/1832-84-0x0000000002680000-0x0000000002699000-memory.dmp
    Filesize

    100KB

  • memory/1832-83-0x0000000001090000-0x000000000109A000-memory.dmp
    Filesize

    40KB

  • memory/1832-85-0x00000000026E0000-0x00000000026E3000-memory.dmp
    Filesize

    12KB

  • memory/1832-86-0x0000000004BF0000-0x0000000004C19000-memory.dmp
    Filesize

    164KB

  • memory/1832-87-0x00000000026F0000-0x00000000026FF000-memory.dmp
    Filesize

    60KB