Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-09-2022 16:20

General

  • Target

    46f93ddbac62282be9a1c50c45fc47af.exe

  • Size

    880KB

  • MD5

    46f93ddbac62282be9a1c50c45fc47af

  • SHA1

    fd33afba3b59b797a44916b55f5edc66b4550679

  • SHA256

    4a006f30188cebe843f8f979bbb0bd3c1808bb8bc46f9e2dbbec566d1e0e9e6b

  • SHA512

    89ea18de5c201acd10b0256733671ccdab52c9d9c7f0c6d0e635a2a08bffac95501b77739edeaa71a2b08d39b149661cc4cf268b67ee0edeb617caa84d7c6e5c

  • SSDEEP

    12288:58eSvB7/el8Z5GW8mnMBtZIHEDmpuWqV1bCBW5twGw9/:5M1eOWt+kDOub1GBW5twt9/

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

rolandlandson149.bounceme.net:1007

127.0.0.1:1007

Attributes
activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-06-13T20:58:05.824762936Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1007
default_group
sepTmAn
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
48099ca8-c1b4-49f3-9fe1-d8dfcbf66c09
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
rolandlandson149.bounceme.net
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
  • Creates scheduled task(s) ⋅ 1 TTPs 2 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 ⋅ 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\46f93ddbac62282be9a1c50c45fc47af.exe
    "C:\Users\Admin\AppData\Local\Temp\46f93ddbac62282be9a1c50c45fc47af.exe"
    Suspicious use of SetThreadContext
    Suspicious use of WriteProcessMemory
    PID:4308
    • C:\Users\Admin\AppData\Local\Temp\46f93ddbac62282be9a1c50c45fc47af.exe
      "C:\Users\Admin\AppData\Local\Temp\46f93ddbac62282be9a1c50c45fc47af.exe"
      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
      Suspicious use of WriteProcessMemory
      PID:2172
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "AGP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp200B.tmp"
        Creates scheduled task(s)
        PID:3468
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "AGP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2164.tmp"
        Creates scheduled task(s)
        PID:3756

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

        Execution

          Exfiltration

            Impact

              Initial Access

                Lateral Movement

                  Privilege Escalation

                    Replay Monitor

                    00:00 00:00

                    Downloads

                    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\46f93ddbac62282be9a1c50c45fc47af.exe.log
                      MD5

                      e08f822522c617a40840c62e4b0fb45e

                      SHA1

                      ae516dca4da5234be6676d3f234c19ec55725be7

                      SHA256

                      bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

                      SHA512

                      894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

                    • C:\Users\Admin\AppData\Local\Temp\tmp200B.tmp
                      MD5

                      06f19a531502f7c18e0e845e9378115e

                      SHA1

                      61392960eeefb9048ab40806b73180abe52effa4

                      SHA256

                      d84aeda36d3a02bc747dda659a9e3b0d2e0b8d500b2a8fb7de23863d7d6f10e5

                      SHA512

                      499cee0a456bdae39473155da1ba6c42bd3b32c28cc53f40a3e52e391345feafe0c0bbe509dca17d9c655754061df580d90b921f9f137f06ce15acd1a233550e

                    • C:\Users\Admin\AppData\Local\Temp\tmp2164.tmp
                      MD5

                      157cd55403665c49c9fd3ca1196c4397

                      SHA1

                      4feed6e606b41bb617274471349582963182756b

                      SHA256

                      49d903f84313feb16bd189c58b6c206f98b05da00ea0da881e2ff0c893b6ba5e

                      SHA512

                      bea7e3caa9c37cadd772a6d3ee0d9ed47de6b3e880cd58649be2939cacd00f70d4edc1ad177e432539267bb520094d9cda3f781cdfc69122f3775242321c11b8

                    • memory/2172-138-0x0000000000000000-mapping.dmp
                    • memory/2172-139-0x0000000000400000-0x0000000000438000-memory.dmp
                    • memory/3468-141-0x0000000000000000-mapping.dmp
                    • memory/3756-143-0x0000000000000000-mapping.dmp
                    • memory/4308-137-0x0000000009710000-0x0000000009776000-memory.dmp
                    • memory/4308-136-0x0000000009670000-0x000000000970C000-memory.dmp
                    • memory/4308-135-0x0000000005A20000-0x0000000005A2A000-memory.dmp
                    • memory/4308-132-0x0000000000EF0000-0x0000000000FD2000-memory.dmp
                    • memory/4308-134-0x0000000005970000-0x0000000005A02000-memory.dmp
                    • memory/4308-133-0x0000000005E80000-0x0000000006424000-memory.dmp