Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20-01-2025 02:11

General

  • Target

    13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec3.exe

  • Size

    2.7MB

  • MD5

    f9b06779ef8886e3db38dd8edf2c8ae7

  • SHA1

    87c11d3f703d6690f5e6aefa5ddabd0eccdb2c43

  • SHA256

    13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec3

  • SHA512

    e7191e615d4fe09136ff49f6e33cc219da7c3421259bc1f648e59e1cfc9c9d93970cb68dd6d8af072ad93867e14d71aa54e41c70d91d31a49b09dbb497d1a5b0

  • SSDEEP

    49152:EGBMeNyllOBdHoYMPRdpOIzP1hu8yPhynpFkn1bkrfWv1LW35IS8CD+isjlQ:BMB7gJUfJ9hcPIpFqtkTWv1w5IgWi

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Dcrat family
  • Process spawned unexpected child process 33 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • UAC bypass 3 TTPs 6 IoCs
  • DCRat payload 7 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in Program Files directory 10 IoCs
  • Drops file in Windows directory 20 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 33 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec3.exe
    "C:\Users\Admin\AppData\Local\Temp\13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec3.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2192
    • C:\Windows\Globalization\Sorting\spoolsv.exe
      "C:\Windows\Globalization\Sorting\spoolsv.exe"
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:2756
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 5 /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\winlogon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2660
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1868
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 10 /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2892
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 10 /tr "'C:\Windows\ModemLogs\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:696
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Windows\ModemLogs\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1048
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 14 /tr "'C:\Windows\ModemLogs\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1480
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:556
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\MSOCache\All Users\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2140
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1936
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Defender\it-IT\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1968
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files\Windows Defender\it-IT\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2096
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Defender\it-IT\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3032
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 11 /tr "'C:\Windows\PolicyDefinitions\en-US\wininit.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2956
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Windows\PolicyDefinitions\en-US\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2984
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 7 /tr "'C:\Windows\PolicyDefinitions\en-US\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3028
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 12 /tr "'C:\Windows\Globalization\Sorting\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2772
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Windows\Globalization\Sorting\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2872
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Windows\Globalization\Sorting\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3016
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\dwm.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2240
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:680
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2188
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec31" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec3.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1892
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec3" /sc ONLOGON /tr "'C:\Users\Admin\13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec3.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1612
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec31" /sc MINUTE /mo 11 /tr "'C:\Users\Admin\13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec3.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2264
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Windows\security\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2244
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\security\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2016
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Windows\security\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2004
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 5 /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\System.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:308
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\System.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2124
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\System.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1884
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsml" /sc MINUTE /mo 10 /tr "'C:\Users\Default\Start Menu\lsm.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2216
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Users\Default\Start Menu\lsm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:832
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsml" /sc MINUTE /mo 5 /tr "'C:\Users\Default\Start Menu\lsm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\All Users\RCX71BE.tmp

    Filesize

    2.7MB

    MD5

    517f3b5f3a0d7fe45cdd3a481f0adf5e

    SHA1

    c1899cdbb7b8dd0a7501fb3418a46ea16a90b095

    SHA256

    241f3ca50e745d16b297fd3a83adb2b47eca06ca6206f26f7ed8306a148cc825

    SHA512

    de68dc2b143ca0c178ca75defaa0bdcb039664ec962105cb352d4f4bbb65a2c721d155c84d88daf267a4ebc87c1576c8ae08013130d861fc23dc20f90eabe90a

  • C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\dwm.exe

    Filesize

    2.7MB

    MD5

    617f030b7438ee438d7d7101e5272f8b

    SHA1

    ce554096fef76ebdb17c822c01fd48295df4ba23

    SHA256

    3b7e9bde86443ee88787bd1b74c960835c0036256a7b17830ef8634baf1ad409

    SHA512

    86a5ebcea4c618ec7cad4a70cce5f01c8d50fd8ee60858fe79c8f4cd271b8eb8dc228c14a9fa1e180ddfd16892f6dee444f7eba08af897fddb8043db86bffd34

  • C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\winlogon.exe

    Filesize

    2.7MB

    MD5

    480c4aeaa9293f2900365303f5718c24

    SHA1

    6011f81eb3a11c8e4b7768caed043bd6c8f268aa

    SHA256

    beb1011d718bfd4d6a3af488cbaf7931d9600821f1adb2608a24bf08aac9086f

    SHA512

    8d8d0d5ed15de991694e59991d94bcb2d5e7beeddbfa0dcf5932f8cd14e48726becd23d7038f172c257e837737167efeeb6bdf5a86564fea5a743c2066442b02

  • C:\Windows\Globalization\Sorting\spoolsv.exe

    Filesize

    2.7MB

    MD5

    ab1620495ffb592580f0617904487ccc

    SHA1

    fe6491e369d90c0378e183eabc6c9d2b91852497

    SHA256

    8f591226f2ce00c6800f06e3142cda0f4c88d079c018f01f41094fc1a12e3c01

    SHA512

    cca501d1ed5a2bdfb421a4f757821c540632f135b53bbfb8bedf23ff3e0acfa5c497346e0bcb30bc71a46db45c91fd31c74ca5cee145149f64e2e4ef078168d9

  • C:\Windows\PolicyDefinitions\en-US\wininit.exe

    Filesize

    2.7MB

    MD5

    f9b06779ef8886e3db38dd8edf2c8ae7

    SHA1

    87c11d3f703d6690f5e6aefa5ddabd0eccdb2c43

    SHA256

    13f24a33b0bda605948ee337aac9f7095faeb536a0c1ba8d221a53af3822eec3

    SHA512

    e7191e615d4fe09136ff49f6e33cc219da7c3421259bc1f648e59e1cfc9c9d93970cb68dd6d8af072ad93867e14d71aa54e41c70d91d31a49b09dbb497d1a5b0

  • memory/2192-12-0x00000000004F0000-0x0000000000502000-memory.dmp

    Filesize

    72KB

  • memory/2192-16-0x0000000000DB0000-0x0000000000DBE000-memory.dmp

    Filesize

    56KB

  • memory/2192-7-0x00000000004B0000-0x00000000004C6000-memory.dmp

    Filesize

    88KB

  • memory/2192-8-0x0000000000490000-0x0000000000498000-memory.dmp

    Filesize

    32KB

  • memory/2192-9-0x00000000004D0000-0x00000000004DA000-memory.dmp

    Filesize

    40KB

  • memory/2192-10-0x0000000000A40000-0x0000000000A96000-memory.dmp

    Filesize

    344KB

  • memory/2192-11-0x00000000004E0000-0x00000000004E8000-memory.dmp

    Filesize

    32KB

  • memory/2192-0-0x000007FEF5793000-0x000007FEF5794000-memory.dmp

    Filesize

    4KB

  • memory/2192-13-0x0000000000500000-0x0000000000508000-memory.dmp

    Filesize

    32KB

  • memory/2192-14-0x0000000000A90000-0x0000000000A98000-memory.dmp

    Filesize

    32KB

  • memory/2192-15-0x0000000000C10000-0x0000000000C1C000-memory.dmp

    Filesize

    48KB

  • memory/2192-6-0x0000000000480000-0x0000000000490000-memory.dmp

    Filesize

    64KB

  • memory/2192-17-0x0000000000E20000-0x0000000000E2C000-memory.dmp

    Filesize

    48KB

  • memory/2192-18-0x0000000000E30000-0x0000000000E3A000-memory.dmp

    Filesize

    40KB

  • memory/2192-19-0x0000000000E40000-0x0000000000E4C000-memory.dmp

    Filesize

    48KB

  • memory/2192-5-0x0000000000470000-0x0000000000478000-memory.dmp

    Filesize

    32KB

  • memory/2192-4-0x0000000000450000-0x000000000046C000-memory.dmp

    Filesize

    112KB

  • memory/2192-3-0x0000000000440000-0x000000000044E000-memory.dmp

    Filesize

    56KB

  • memory/2192-2-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

    Filesize

    9.9MB

  • memory/2192-1-0x0000000000E80000-0x0000000001134000-memory.dmp

    Filesize

    2.7MB

  • memory/2192-182-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

    Filesize

    9.9MB

  • memory/2756-181-0x0000000000250000-0x0000000000504000-memory.dmp

    Filesize

    2.7MB