Overview

overview

10

Static

static

Dacom_Int_...3y.exe

windows7_x64

10

Dacom_Int_...3y.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 02:38

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General

  • Target

    Dacom_Int_Limited - product list & spec#664783y.exe

  • Size

    634KB

  • MD5

    b62b5cb4480ff462342ee24c1e7e2003

  • SHA1

    a9dd75a506a7050c1882fcff61108a973bd1d0fc

  • SHA256

    a0d1174033e97f8357e24a3c08daee72328599e260d622979d5e9d4787b29707

  • SHA512

    7fce72a269f42997d567254e3dea666026fdf0ddda3dbe3e2d48023bcfa9b495449fd0ff24047f25aa81ae93f1b54e948a386e3dbce4e18c92c41cd1a95e891f

Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

172.81.129.208:4110

Mutex

821bd1d5-8557-4bf4-bd4e-490350e109d3

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    172.81.129.208

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-15T09:31:31.926770736Z

  • 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

    4110

  • 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

    821bd1d5-8557-4bf4-bd4e-490350e109d3

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

  • 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.

    keyloggertrojanstealerspywarenanocore
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 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 2 IoCs

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

    persistence
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Dacom_Int_Limited - product list & spec#664783y.exe
    "C:\Users\Admin\AppData\Local\Temp\Dacom_Int_Limited - product list & spec#664783y.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:388
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VimWxSTPBQpgxI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFCE6.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2000
    • C:\Users\Admin\AppData\Local\Temp\Dacom_Int_Limited - product list & spec#664783y.exe
      "{path}"
      2⤵
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2008
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DSL Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp34C.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1328

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp34C.tmp
    Filesize

    1KB

    MD5

    9edbfd0883a127e15785a76ae2248789

    SHA1

    fed7103d004eac44a823fa85b434060353f0e362

    SHA256

    bb3c61748f6a6be99e3a437658e29abf5271ec7d969745e06cf5f1efa8fb35d7

    SHA512

    d70e9828957da67c7b326c93b4ab60afff34d63413aab87600aa8d888088985f6796a5096a3f14912f82a88b75505e5192c5d34e29d752bb67ff836e43bf57d4

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\tmpFCE6.tmp
    Filesize

    1KB

    MD5

    ae9e2b73506da0018f5572ab26f3b047

    SHA1

    42acc1430b60cd2dcf7c09add8c34ceef5d74f1a

    SHA256

    370312f0b92f29c7e7e87d815367db95280beb9664019e25a9cb8216288b9707

    SHA512

    e92de756b5e3204f34515cf8e1a190d1e74b89c7ea042cb7231a79407a7d5b0d7d5b207eae3174420693b0fbea23096ec6d39906dbe2f7d42e0e0d1216a42a48

    Download Submit

  • memory/388-54-0x0000000076C81000-0x0000000076C83000-memory.dmp

    Filesize

    8KB

    Download

  • memory/388-55-0x0000000074F70000-0x000000007551B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1328-71-0x0000000000000000-mapping.dmp

    Download

  • memory/2000-56-0x0000000000000000-mapping.dmp

    Download

  • memory/2008-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/2008-62-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/2008-64-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/2008-65-0x000000000041E792-mapping.dmp

    Download

  • memory/2008-67-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/2008-69-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/2008-59-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/2008-58-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

    Download

  • memory/2008-73-0x0000000074F00000-0x00000000754AB000-memory.dmp

    Filesize

    5.7MB

    Download