Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-04-2023 13:46

General

  • Target

    NEW ORDER LIST .xls.exe

  • Size

    668KB

  • MD5

    7033ae8b4afbadb27abbd7b3b5bdb085

  • SHA1

    5e15fd3f589d52c0b2c6e0e20e66c6b299646a59

  • SHA256

    e92efa61a4ae7376c52f323abae88f5303a217b58966e4a71042fbebd0cba60a

  • SHA512

    988da34cfd2cb7c8118d8dbf057bb65c1c895f24872443dca4b985c17dbbcae6efb974d7c76cb6db233cba393ee6e1eea35f0f056a54e6c1bfbf64832edbab97

  • SSDEEP

    12288:6BX65Pf63JHFbaDoiJqLyl173SMn0XuEaWvvcCmyL/pheNQq8:6M563Lvyl17iM0Naqc4L7eNe

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

moonandbebe.ddns.net:6324

127.0.0.1:6324

Mutex

9df60050-0f19-40b4-870c-3f0f73f35b3b

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    37.235.1.177

  • buffer_size

    65535

  • build_time

    2023-01-18T15:29:22.483592836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    6324

  • default_group

    moonandbebe

  • 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

    9df60050-0f19-40b4-870c-3f0f73f35b3b

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    moonandbebe.ddns.net

  • primary_dns_server

    37.235.1.174

  • 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.

  • Unexpected DNS network traffic destination 5 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • 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). Likely ransomware behaviour.

  • 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 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEW ORDER LIST .xls.exe
    "C:\Users\Admin\AppData\Local\Temp\NEW ORDER LIST .xls.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4752
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XhqvcLIDz.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:800
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XhqvcLIDz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA681.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4176
    • C:\Users\Admin\AppData\Local\Temp\NEW ORDER LIST .xls.exe
      "C:\Users\Admin\AppData\Local\Temp\NEW ORDER LIST .xls.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:1476

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\NEW ORDER LIST .xls.exe.log
    Filesize

    1KB

    MD5

    33d62ef2c354f839a8b2b987e6ee41e7

    SHA1

    d76f64ac411a61f3f232f7f9f7b179bd34042226

    SHA256

    f6a84062cb11ccf802324692c2c4c48543377cf717d98efd5de695ed6d0a97d9

    SHA512

    d68a426b2f4646bb45e2267d60680166a8effb9a461e5a07756ba13a3bdf36b27e6e9777d945d03a62362e6976e92214c53ffc7c4f03ec28d3fcfc9a442c5e3c

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2i2uwpgf.qzp.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpA681.tmp
    Filesize

    1KB

    MD5

    c5ae15d8d72e143b1aae0a4409776e7c

    SHA1

    2f6aa2cdffc3c00bd8bb447ab7af757b0110bb3c

    SHA256

    9b8e82345245c68d0db4e73f6d423e9f3bbd30066c7e189564c0ff10cbaca6ef

    SHA512

    1fef2556e685c25c7336e6e9ee64182dec70f550a28d3b4225cbe4f5e3955043088b36d237f2edbccd2eda6c1ff175a064d0f67ef0fcf7e53b2d56348ebd9cc4

  • memory/800-151-0x00000000057E0000-0x0000000005846000-memory.dmp
    Filesize

    408KB

  • memory/800-168-0x00000000078D0000-0x0000000007902000-memory.dmp
    Filesize

    200KB

  • memory/800-188-0x0000000007D40000-0x0000000007D48000-memory.dmp
    Filesize

    32KB

  • memory/800-187-0x0000000007D60000-0x0000000007D7A000-memory.dmp
    Filesize

    104KB

  • memory/800-144-0x0000000002E20000-0x0000000002E56000-memory.dmp
    Filesize

    216KB

  • memory/800-186-0x0000000007C50000-0x0000000007C5E000-memory.dmp
    Filesize

    56KB

  • memory/800-146-0x0000000005930000-0x0000000005F58000-memory.dmp
    Filesize

    6.2MB

  • memory/800-180-0x0000000002EA0000-0x0000000002EB0000-memory.dmp
    Filesize

    64KB

  • memory/800-179-0x0000000006CC0000-0x0000000006CDE000-memory.dmp
    Filesize

    120KB

  • memory/800-159-0x0000000002EA0000-0x0000000002EB0000-memory.dmp
    Filesize

    64KB

  • memory/800-161-0x0000000002EA0000-0x0000000002EB0000-memory.dmp
    Filesize

    64KB

  • memory/800-152-0x00000000060D0000-0x0000000006136000-memory.dmp
    Filesize

    408KB

  • memory/800-184-0x0000000007A90000-0x0000000007A9A000-memory.dmp
    Filesize

    40KB

  • memory/800-183-0x0000000007A20000-0x0000000007A3A000-memory.dmp
    Filesize

    104KB

  • memory/800-182-0x0000000008070000-0x00000000086EA000-memory.dmp
    Filesize

    6.5MB

  • memory/800-181-0x000000007EF90000-0x000000007EFA0000-memory.dmp
    Filesize

    64KB

  • memory/800-167-0x0000000006720000-0x000000000673E000-memory.dmp
    Filesize

    120KB

  • memory/800-150-0x0000000005740000-0x0000000005762000-memory.dmp
    Filesize

    136KB

  • memory/800-169-0x0000000070E00000-0x0000000070E4C000-memory.dmp
    Filesize

    304KB

  • memory/800-185-0x0000000007CA0000-0x0000000007D36000-memory.dmp
    Filesize

    600KB

  • memory/1476-147-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1476-191-0x0000000005970000-0x0000000005980000-memory.dmp
    Filesize

    64KB

  • memory/1476-158-0x0000000005970000-0x0000000005980000-memory.dmp
    Filesize

    64KB

  • memory/4752-136-0x00000000057D0000-0x00000000057DA000-memory.dmp
    Filesize

    40KB

  • memory/4752-137-0x0000000005A10000-0x0000000005A20000-memory.dmp
    Filesize

    64KB

  • memory/4752-135-0x0000000005800000-0x0000000005892000-memory.dmp
    Filesize

    584KB

  • memory/4752-133-0x0000000000D90000-0x0000000000E3E000-memory.dmp
    Filesize

    696KB

  • memory/4752-139-0x0000000007680000-0x000000000771C000-memory.dmp
    Filesize

    624KB

  • memory/4752-138-0x0000000005A10000-0x0000000005A20000-memory.dmp
    Filesize

    64KB

  • memory/4752-134-0x0000000005D10000-0x00000000062B4000-memory.dmp
    Filesize

    5.6MB