Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    06-05-2024 14:33

General

  • Target

    1cf26a96c17dbab78096a376a904d334_JaffaCakes118.exe

  • Size

    542KB

  • MD5

    1cf26a96c17dbab78096a376a904d334

  • SHA1

    a388ed048b725f09fa1415bc49ee5210810a0202

  • SHA256

    8a170584ad7402c1bee5b9c0932475bce9eef45d40b0774594a8df01eb9737db

  • SHA512

    2a616e147edb5d565c9f1dcdb4fab1b69eef803f8133d700ddaf23710fbfec20216c27824878afb65fc243f0365104d0fd0348b7097943d75471741d3feb57ea

  • SSDEEP

    12288:YeettA1LCVfpgehv2zv1gYVEdi3s6lE1gFRMD888BTv9LRie:P2tfpgeo2YWdi7ag/KL8Bv9L8e

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

yawalessinc.hopto.org:2786

185.165.153.6:2786

Mutex

8ff437cf-fde6-4391-9e30-8c4a40988972

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.165.153.6

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-06-30T08:50:47.726759036Z

  • 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

    2786

  • 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

    8ff437cf-fde6-4391-9e30-8c4a40988972

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    yawalessinc.hopto.org

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1cf26a96c17dbab78096a376a904d334_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1cf26a96c17dbab78096a376a904d334_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZbPSGyp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpED0D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2452
    • C:\Users\Admin\AppData\Local\Temp\1cf26a96c17dbab78096a376a904d334_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\1cf26a96c17dbab78096a376a904d334_JaffaCakes118.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:1736
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEEA3.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2708
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "DDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEEF2.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpED0D.tmp

    Filesize

    1KB

    MD5

    7df6ac88ccba309b0d9ca60e6560a1f1

    SHA1

    a9133185aed710e4e6b66cb04e73f52f52db8fcf

    SHA256

    6045d30f30a8d5957d26cba417ee2c95343dd0a8c672cfee5299a6599894d146

    SHA512

    8acb6d31e1b095683ed51944398573ea353ea39e76fd4ef02b3513602d3b5e3cd36ad06e3f02995dff95642af53176d94e88351e63324ac13c528b3ec5f9c486

  • C:\Users\Admin\AppData\Local\Temp\tmpEEA3.tmp

    Filesize

    1KB

    MD5

    35841428102cf4e6443eb6a26cb5ee25

    SHA1

    294ee146090b735546db5899abbeef3cd8c2c78f

    SHA256

    156121255aeba07e9e666ba731729e6b414385c391af58005bda5fe6406a1412

    SHA512

    67a5d24ca46ff3f791495a4cbe838378d4efd50219c69895f56707138e4203cb03ca51a492ed39eae3e9e207c63963d73fe220318ba6c5506122874f16744953

  • C:\Users\Admin\AppData\Local\Temp\tmpEEF2.tmp

    Filesize

    1KB

    MD5

    8e2d5fba24ae8a54087d8e6cadc188c1

    SHA1

    548555025543b4773b8f36301f5fa5003e1c85dc

    SHA256

    f8a3739cca23897792b42a11a21adcce745201fa19f8d84ec66a6e0c5e519759

    SHA512

    9246583d7b08152cd73dc40254013e1ae4b8c93603dbb1f4e6b82624e14b134c59de6c8039b588f14075602768a388121e985f886322ae5fb9ec2eee94d4ea3d

  • memory/1736-23-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1736-25-0x0000000074A80000-0x000000007502B000-memory.dmp

    Filesize

    5.7MB

  • memory/1736-33-0x0000000074A80000-0x000000007502B000-memory.dmp

    Filesize

    5.7MB

  • memory/1736-12-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1736-21-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1736-10-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1736-19-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1736-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1736-16-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1736-14-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2916-4-0x0000000074A80000-0x000000007502B000-memory.dmp

    Filesize

    5.7MB

  • memory/2916-24-0x0000000074A80000-0x000000007502B000-memory.dmp

    Filesize

    5.7MB

  • memory/2916-0-0x0000000074A81000-0x0000000074A82000-memory.dmp

    Filesize

    4KB

  • memory/2916-3-0x0000000074A80000-0x000000007502B000-memory.dmp

    Filesize

    5.7MB

  • memory/2916-2-0x0000000074A80000-0x000000007502B000-memory.dmp

    Filesize

    5.7MB

  • memory/2916-1-0x0000000074A80000-0x000000007502B000-memory.dmp

    Filesize

    5.7MB