Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-12-2024 12:53

General

  • Target

    2024-12-19_cc74ca82436f36c701b67aa6dba61fc1_darkside.exe

  • Size

    146KB

  • MD5

    cc74ca82436f36c701b67aa6dba61fc1

  • SHA1

    cd1e7eaee094cb71101f0cc58ee91e2dd01f1eea

  • SHA256

    5cd13457b6d5ebd06aaea94183c22bb766731c6abe14922525e3f527708fd742

  • SHA512

    d68578b9301461c724b4a63cf9e9691e06a497e2b5d3992b68ba3db6301fe0aae5197bffbfa50c2780e96fa0d257ec174df6c5ea3df57d5abb684281cbbb9048

  • SSDEEP

    3072:L6glyuxE4GsUPnliByocWepCc1zsUGG808GOiUSza:L6gDBGpvEByocWeoM15xOiUia

Malware Config

Signatures

  • Renames multiple (206) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-19_cc74ca82436f36c701b67aa6dba61fc1_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-19_cc74ca82436f36c701b67aa6dba61fc1_darkside.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\ProgramData\1777.tmp
      "C:\ProgramData\1777.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\1777.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1976
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:3040

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-1488793075-819845221-1497111674-1000\YYYYYYYYYYY

      Filesize

      129B

      MD5

      e1e63b80d68458ef992233728b07f96d

      SHA1

      a3517406cbada7e5981c1269987bed73fbe94466

      SHA256

      529fda855c44ba1443dff210e0799ee68da14b7cde90d1580daa23d95e95cbb0

      SHA512

      9e9ee6c753ec4e3f421aba9610ce8baea3169e2115843792450067074508bcc39ee09d68863d1df52e8d7ea2bd9ed0d480fba3aba2c85119d2b2168a342bdba8

    • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

      Filesize

      146KB

      MD5

      6251ee0b60513580a729263c147f25f5

      SHA1

      7691ff5378f8ef804986c5bcd5bdfa21cd572d4c

      SHA256

      d2bd6b9bd1e491f490e9aaf1ce5d9b321b523eb20bbbcd1fa65e171cdfa37132

      SHA512

      c4199de6333332df0a32d87a7e67befb995484cfd34163888c5b767c350f623221df440b7e4e4e77b9fd5e50489d87f534913ebe2cb46f9ee7279d678436c5e0

    • C:\s8ZlX6b29.README.txt

      Filesize

      463B

      MD5

      6f7db6bb7b29b288b16771cd09f495e6

      SHA1

      ab4c0ef134b8c4fefa75acd18c5f88d6c6870b58

      SHA256

      95d26fea78a10ee5d82d4de5e16bba8077ef038139b3c0fcf7519f2b4c813518

      SHA512

      8ce9df614eae8036043d85d9c3e36d0d0e464e6d3ae288afd6ad538722ef4e48d8910cd2bf34004f7415a6c894654f03fe0f2eb3ffea67e333351818b2d5edd9

    • F:\$RECYCLE.BIN\S-1-5-21-1488793075-819845221-1497111674-1000\EEEEEEEEEEE

      Filesize

      129B

      MD5

      4eb36e02e11b9b8b37404644cbb5b72b

      SHA1

      1c9b065e52d54ac998a85179d28b746738893da7

      SHA256

      a44bb742e9fc33eba4c4e88f943c8368e455bec879aaa0da2d1af873d058f47a

      SHA512

      bde15b5f5caa5971b7a9ccf76f0e61ccb1b66a8412f2f3160c29453cdc5311abd8e16b6d2b4f591d1068ca92b53475562e299adaf40642304e62d93090b92323

    • \ProgramData\1777.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/1624-0-0x0000000000140000-0x0000000000180000-memory.dmp

      Filesize

      256KB

    • memory/2328-370-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

    • memory/2328-369-0x0000000002240000-0x0000000002280000-memory.dmp

      Filesize

      256KB

    • memory/2328-368-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

    • memory/2328-367-0x0000000002240000-0x0000000002280000-memory.dmp

      Filesize

      256KB

    • memory/2328-365-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

    • memory/2328-400-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

    • memory/2328-399-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB