Analysis

  • max time kernel
    127s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-02-2025 15:55

General

  • Target

    3dce7fce69c35c15988ad7bc647d4681.exe

  • Size

    2.7MB

  • MD5

    3dce7fce69c35c15988ad7bc647d4681

  • SHA1

    bf0b951d922c6e92e40cec56f641a0c48da49b57

  • SHA256

    534190cdacfd4dd6d00505481ff5051320f6168e3740dafbc132a5003146c3bb

  • SHA512

    99e11b00a61b901a0954dbdd6c1b533c2898662584ea296fd1a92b790ffe10690cf2acba4b595e9d517fc3088ec03450c1d1ee1ce9ae8cfe1a15f24ae14ad33e

  • SSDEEP

    49152:Ano0OKQIQaPECv3la9Bc0JpOkFl5B9LzYSbqtR6v:hMvlyG0JpOG50SbOg

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 30 IoCs

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

  • UAC bypass 3 TTPs 6 IoCs
  • DCRat payload 6 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 15 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 30 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 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\3dce7fce69c35c15988ad7bc647d4681.exe
    "C:\Users\Admin\AppData\Local\Temp\3dce7fce69c35c15988ad7bc647d4681.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2524
    • C:\Program Files (x86)\Windows Portable Devices\audiodg.exe
      "C:\Program Files (x86)\Windows Portable Devices\audiodg.exe"
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:2076
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "3dce7fce69c35c15988ad7bc647d46813" /sc MINUTE /mo 11 /tr "'C:\Program Files\Microsoft Games\3dce7fce69c35c15988ad7bc647d4681.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2860
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "3dce7fce69c35c15988ad7bc647d4681" /sc ONLOGON /tr "'C:\Program Files\Microsoft Games\3dce7fce69c35c15988ad7bc647d4681.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2844
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "3dce7fce69c35c15988ad7bc647d46813" /sc MINUTE /mo 13 /tr "'C:\Program Files\Microsoft Games\3dce7fce69c35c15988ad7bc647d4681.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2796
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Portable Devices\audiodg.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3056
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\audiodg.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2716
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Portable Devices\audiodg.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2604
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\wininit.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2676
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3000
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2128
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 5 /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1372
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:636
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 12 /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1492
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 13 /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\taskhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2840
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\taskhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1424
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 12 /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\taskhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1248
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 8 /tr "'C:\Users\Admin\Searches\OSPPSVC.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1648
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Users\Admin\Searches\OSPPSVC.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1684
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 9 /tr "'C:\Users\Admin\Searches\OSPPSVC.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2884
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 10 /tr "'C:\Users\All Users\Microsoft\Windows\Templates\WmiPrvSE.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1676
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Users\All Users\Microsoft\Windows\Templates\WmiPrvSE.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2488
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 12 /tr "'C:\Users\All Users\Microsoft\Windows\Templates\WmiPrvSE.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1804
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 14 /tr "'C:\Users\Public\Favorites\services.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1564
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\Public\Favorites\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2200
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 6 /tr "'C:\Users\Public\Favorites\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1736
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 13 /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\wininit.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2424
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:596
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Recovery\1b8b1de2-69f6-11ef-9774-62cb582c238c\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2948
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Portable Devices\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2512
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files\Windows Portable Devices\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2952
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Portable Devices\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\Windows\Templates\WmiPrvSE.exe

    Filesize

    2.7MB

    MD5

    ab9736d2e5478e7ae44e317dbb1cf146

    SHA1

    bcdb75daf9367f59fa1cfe0e3ee50e4b4b5f19bc

    SHA256

    d9ab159718c03acca74a13dc51ab4448c47f562788f10687ef2c90d91d71c20a

    SHA512

    5e3f356028e61cddf341a94b39ced014a87c17339cdadb18154314a62b37d5acc55dc296e538440004645a541ee190e5167194d01356bb78cb60d0fd3dfc3ddb

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

    Filesize

    2.7MB

    MD5

    3dce7fce69c35c15988ad7bc647d4681

    SHA1

    bf0b951d922c6e92e40cec56f641a0c48da49b57

    SHA256

    534190cdacfd4dd6d00505481ff5051320f6168e3740dafbc132a5003146c3bb

    SHA512

    99e11b00a61b901a0954dbdd6c1b533c2898662584ea296fd1a92b790ffe10690cf2acba4b595e9d517fc3088ec03450c1d1ee1ce9ae8cfe1a15f24ae14ad33e

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

    Filesize

    2.7MB

    MD5

    b0a948255d162106567790df934007a3

    SHA1

    aab461750998d9603e4ab462a19205bf6b040460

    SHA256

    20131996149fac9a1130b96918041486a1f72c3fde2be902ef76e7b698087388

    SHA512

    aafce1ea8f5205e74362bd201f7d977119651da2fbbbdad3e987082339c125902a7c9813c10bd6bad2a7fd061f508e34595f442a306267e1259e0224ca794b9d

  • C:\Users\Admin\Searches\OSPPSVC.exe

    Filesize

    2.7MB

    MD5

    bd9644caf7670252980b2871e0a88f3e

    SHA1

    e941b896e61850c1a6e95b995129863eb8442b8d

    SHA256

    df65dd359f0e58d4e8cd8070050c3575692390fe6dea0a9770306d4d06b85210

    SHA512

    fdefb11e238d96e963ff6ae34b767642c3abf7994b60c1e1b80ad2ecee092db1d0e05e74e8d01595d2d76de1c35eaefdeefa44fd2428078b92c9abbb3f4bab1b

  • memory/2076-166-0x0000000000880000-0x0000000000B34000-memory.dmp

    Filesize

    2.7MB

  • memory/2524-12-0x0000000000B90000-0x0000000000BA2000-memory.dmp

    Filesize

    72KB

  • memory/2524-16-0x00000000023C0000-0x00000000023CE000-memory.dmp

    Filesize

    56KB

  • memory/2524-7-0x0000000000430000-0x0000000000446000-memory.dmp

    Filesize

    88KB

  • memory/2524-8-0x0000000000450000-0x0000000000458000-memory.dmp

    Filesize

    32KB

  • memory/2524-9-0x0000000000AF0000-0x0000000000AFA000-memory.dmp

    Filesize

    40KB

  • memory/2524-10-0x0000000002450000-0x00000000024A6000-memory.dmp

    Filesize

    344KB

  • memory/2524-11-0x0000000000B00000-0x0000000000B08000-memory.dmp

    Filesize

    32KB

  • memory/2524-0-0x000007FEF5063000-0x000007FEF5064000-memory.dmp

    Filesize

    4KB

  • memory/2524-13-0x0000000000BC0000-0x0000000000BC8000-memory.dmp

    Filesize

    32KB

  • memory/2524-14-0x00000000023A0000-0x00000000023A8000-memory.dmp

    Filesize

    32KB

  • memory/2524-15-0x00000000023B0000-0x00000000023BC000-memory.dmp

    Filesize

    48KB

  • memory/2524-6-0x0000000000410000-0x0000000000420000-memory.dmp

    Filesize

    64KB

  • memory/2524-17-0x000000001AA40000-0x000000001AA4C000-memory.dmp

    Filesize

    48KB

  • memory/2524-18-0x000000001AA50000-0x000000001AA5A000-memory.dmp

    Filesize

    40KB

  • memory/2524-19-0x000000001AAE0000-0x000000001AAEC000-memory.dmp

    Filesize

    48KB

  • memory/2524-5-0x0000000000400000-0x0000000000408000-memory.dmp

    Filesize

    32KB

  • memory/2524-4-0x00000000003E0000-0x00000000003FC000-memory.dmp

    Filesize

    112KB

  • memory/2524-3-0x00000000003D0000-0x00000000003DE000-memory.dmp

    Filesize

    56KB

  • memory/2524-2-0x000007FEF5060000-0x000007FEF5A4C000-memory.dmp

    Filesize

    9.9MB

  • memory/2524-1-0x0000000000BD0000-0x0000000000E84000-memory.dmp

    Filesize

    2.7MB

  • memory/2524-165-0x000007FEF5060000-0x000007FEF5A4C000-memory.dmp

    Filesize

    9.9MB