Analysis

  • max time kernel
    103s
  • max time network
    196s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    14-10-2021 10:14

General

  • Target

    DHL TRACKING DETAILS.exe

  • Size

    375KB

  • MD5

    c83f7a1a326f7b47ec13eebea020a467

  • SHA1

    90c2c4514dad7500f64ef90807841141cab506d4

  • SHA256

    56f1040045ad7e244e7825dfb1c8d6a4714811511cc4c72d73d5c13c7411a168

  • SHA512

    a5cfec49d6eb08f01bfdfa66cb2a3eb83221c48484efcb80f8a2d7802f92941ad8e21883e72cc0a4235f7bb758337b35a6868fcbb2fbda595d5d32cea1700a7a

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

chinomso.duckdns.org:7688

Mutex

bee718f3-e47a-44f8-955e-2fe2c6c0351c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    chinomso.duckdns.org

  • backup_dns_server

    chinomso.duckdns.org

  • buffer_size

    65535

  • build_time

    2021-01-17T14:27:22.436365536Z

  • 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

    7688

  • default_group

    Default

  • 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

    bee718f3-e47a-44f8-955e-2fe2c6c0351c

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    chinomso.duckdns.org

  • primary_dns_server

    chinomso.duckdns.org

  • request_elevation

    false

  • 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). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL TRACKING DETAILS.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL TRACKING DETAILS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VwBkiqeJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3811.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1632
    • C:\Users\Admin\AppData\Local\Temp\DHL TRACKING DETAILS.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL TRACKING DETAILS.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
      • Suspicious use of WriteProcessMemory
      PID:1504
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DPI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3CA3.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1776
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DPI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3E59.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1808

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

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp3CA3.tmp
    MD5

    473927eecfadb18098e36c3a1158a9c3

    SHA1

    b04a7ceb104d6256ddb3e93810c4fae339c1066d

    SHA256

    e483766a8138bf4dbffe48eeb9074cff494a56de667d853442556d91f70de908

    SHA512

    4c832369091bb92bc30d4f4d34ea9812c2506a0716dc5f8057bd10287bbe3436432dd824dcbb57b37a66bdb24881df9eca276c6ef7f6f6eb7a8241ef009074eb

  • C:\Users\Admin\AppData\Local\Temp\tmp3E59.tmp
    MD5

    a9af285136db016a568e4a53208f21d0

    SHA1

    e1afef2b7ee8ae945353315daa19a15574b435b7

    SHA256

    7dce876e35550f4a5b8ce8a8bbab3b0ccd7c5b8660f9db4b832466b77e3a8b7c

    SHA512

    80a1f5e463a87cddc0f66336e2dc4262daf98984c6f6c662c3615d615ebe7c58677c3d694edb3bd7816ccee969aae967c7efe8526ba423f274ac1210c0c8bd6e

  • memory/1472-61-0x00000000757C1000-0x00000000757C3000-memory.dmp
    Filesize

    8KB

  • memory/1472-62-0x0000000004EA0000-0x0000000004EA1000-memory.dmp
    Filesize

    4KB

  • memory/1472-63-0x0000000000370000-0x0000000000375000-memory.dmp
    Filesize

    20KB

  • memory/1472-64-0x0000000004FC0000-0x0000000005015000-memory.dmp
    Filesize

    340KB

  • memory/1472-59-0x0000000000A20000-0x0000000000A21000-memory.dmp
    Filesize

    4KB

  • memory/1504-85-0x00000000008A0000-0x00000000008AC000-memory.dmp
    Filesize

    48KB

  • memory/1504-87-0x00000000008C0000-0x00000000008C6000-memory.dmp
    Filesize

    24KB

  • memory/1504-69-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1504-70-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1504-71-0x000000000041E792-mapping.dmp
  • memory/1504-72-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1504-74-0x0000000004D50000-0x0000000004D51000-memory.dmp
    Filesize

    4KB

  • memory/1504-93-0x0000000000960000-0x000000000096F000-memory.dmp
    Filesize

    60KB

  • memory/1504-67-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1504-92-0x00000000009F0000-0x0000000000A19000-memory.dmp
    Filesize

    164KB

  • memory/1504-66-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1504-79-0x0000000000440000-0x0000000000445000-memory.dmp
    Filesize

    20KB

  • memory/1504-80-0x0000000000450000-0x0000000000469000-memory.dmp
    Filesize

    100KB

  • memory/1504-81-0x0000000000470000-0x0000000000473000-memory.dmp
    Filesize

    12KB

  • memory/1504-82-0x0000000000620000-0x000000000062D000-memory.dmp
    Filesize

    52KB

  • memory/1504-83-0x0000000000630000-0x0000000000645000-memory.dmp
    Filesize

    84KB

  • memory/1504-84-0x0000000000840000-0x0000000000846000-memory.dmp
    Filesize

    24KB

  • memory/1504-91-0x0000000000940000-0x000000000094A000-memory.dmp
    Filesize

    40KB

  • memory/1504-86-0x00000000008B0000-0x00000000008B7000-memory.dmp
    Filesize

    28KB

  • memory/1504-68-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1504-88-0x00000000008D0000-0x00000000008DD000-memory.dmp
    Filesize

    52KB

  • memory/1504-89-0x00000000008E0000-0x00000000008E9000-memory.dmp
    Filesize

    36KB

  • memory/1504-90-0x00000000008F0000-0x00000000008FF000-memory.dmp
    Filesize

    60KB

  • memory/1632-65-0x0000000000000000-mapping.dmp
  • memory/1776-75-0x0000000000000000-mapping.dmp
  • memory/1808-77-0x0000000000000000-mapping.dmp