Resubmissions

11-08-2024 12:28

240811-pngzlszalp 6

18-04-2024 10:53

240418-mzd1zscc4y 8

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    11-08-2024 12:28

General

  • Target

    MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe

  • Size

    5.3MB

  • MD5

    fbd9ad001bb2719f574c0705c5de05fb

  • SHA1

    d07e77a490ad677935ac8213b88237e94440e791

  • SHA256

    f0031f9d7f25d4d29581879f62565a5a565995899adc60213f9e218147c78593

  • SHA512

    5724e3f858ae7ea92ba4ce325f3f8f4b90ecc6d7c19476e2888c4b09f0913463191b977f71314300918cceb0a6ae0b80e29d3c70891e8aeb9314da233a929e96

  • SSDEEP

    98304:oeZOuRuvqAgef1ndGaX6tJJQv2FKA75OpVclc02vDRZTEB:1ZOPNdo3u0jc02vVZoB

Score
6/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Drops desktop.ini file(s) 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 18 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies registry class 8 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious behavior: LoadsDriver 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 51 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe
    "C:\Users\Admin\AppData\Local\Temp\MuMuInstaller_3.1.7.0_gw-overseas12_all_1712735105.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:808
    • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\nemu-downloader.exe
      C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\nemu-downloader.exe
      2⤵
      • Drops file in Program Files directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2868
      • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\ColaBoxChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\ColaBoxChecker.exe" checker /baseboard
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2744
      • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\HyperVChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\HyperVChecker.exe"
        3⤵
        • Executes dropped EXE
        PID:2328
      • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\HyperVChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\HyperVChecker.exe"
        3⤵
        • Executes dropped EXE
        PID:1928
      • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\HyperVChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\HyperVChecker.exe"
        3⤵
        • Executes dropped EXE
        PID:2904
      • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\MuMuDownloader.exe
        "C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\MuMuDownloader.exe" --log="C:\Users\Admin\AppData\Local\Temp\nemu-downloader-aria.log" --log-level=notice --check-certificate=false --enable-rpc=true --rpc-listen-port=49337 --continue --max-concurrent-downloads=10 --max-connection-per-server=5 --async-dns=false --file-allocation=prealloc --enable-mmap=true --connect-timeout=5 --rpc-max-request-size=1024M --stop-with-process=2868
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2392
  • C:\Program Files\Microsoft Games\solitaire\solitaire.exe
    "C:\Program Files\Microsoft Games\solitaire\solitaire.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    PID:3052
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1092
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:2684

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Subvert Trust Controls

    1
    T1553

    Install Root Certificate

    1
    T1553.004

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    System Location Discovery

    1
    T1614

    System Language Discovery

    1
    T1614.001

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft Games\Solitaire\desktop.ini
      Filesize

      92B

      MD5

      beafa86203beefa0943fa75a59635415

      SHA1

      a36cd01746cb0b076ff0d26d2b991d2c04cb6943

      SHA256

      abab181ff99c3f50a4504f7ebefe710abc0e7f787076bbe734f5072a41de40ac

      SHA512

      ec9280c5aad060903d42c0d68a7e01cce368ee5cc3c0728c27535ba3fdc37d9683c4a81c9c5ae0cc6ce1a9e32940cf0ca0f9110eb73077e953bd42390169f155

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\GameExplorer\GameStatistics\{8669ECE8-D1C3-4345-8310-E60F6D44FDAF}\{8669ECE8-D1C3-4345-8310-E60F6D44FDAF}.gamestats
      Filesize

      2KB

      MD5

      a338c1bb5704e723487ef4f8d5d592f5

      SHA1

      9b6e89c7fdf4ed588a98b673dcc3073f85eaea5d

      SHA256

      c096f55238f36481b0e846e37004e813ea0b34ddbc7a94f0155fd64ed4dd5672

      SHA512

      ab62aac5a5fb6f599616d0998cb8011ca18c0631e42451958af89bcaa8db2b6e179651cb14c94f3f6868b0c8632a4048f8c9e6ba7ea6a31abb168e1362188952

    • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\ColaBoxChecker.exe
      Filesize

      4.0MB

      MD5

      839708e3f96cf055436fa08d6205263c

      SHA1

      a4579f8cb6b80fe3fd50099794f63eb51be3292f

      SHA256

      1373c5d006a5dbcd9b86cfff9a37616f1245d1333c4adcefc7cd18926b98d752

      SHA512

      ece67e031e06a0442d935e7d81d0eed57ae92b348b5d104423577478ce226e4a4bde834c54e31d33bfe6f574fb7798ba96886d9e8edb738edee6e7c9c43054cd

    • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\HyperVChecker.exe
      Filesize

      117KB

      MD5

      dbd84c6083e4badf4741d95ba3c9b5f8

      SHA1

      4a555adf8e0459bfd1145d9bd8d91b3fff94aad0

      SHA256

      9ff467bc5a1c377102d25da9fa9c24dcc4375f456510f71584f0714fdfb2af39

      SHA512

      fb5fe74f64254609e07d6642acf904562bb905cd7c14c6f85ba31bcdbaf06686c0586609ec4f5d2f8f55ff90334dcbb774a3a6e78df74bf1b1d0cd03dec21870

    • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\baseboard
      Filesize

      115B

      MD5

      8b62c950ac196decfde2ea413284a882

      SHA1

      21c4d19de663037a68f39d50be0f140347750e8a

      SHA256

      94c8b7ceade16259c14673de736d8ce39bf91311a4c94111a3fcf2d461203a6d

      SHA512

      a0dd35bc8d7fc1a266a4d1462d22c57a9aac20fc3bfa3a6a5bc18bb600e6f42379e59b8d785a438db77cd0a5f23877defbd3fc12d648182e419cd7181aced93f

    • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\config.ini
      Filesize

      346B

      MD5

      d00fb4c61a255b58ff09886c6c72461b

      SHA1

      4e4f7d7ae36f67a4d6fc8479f8400b3eb769e978

      SHA256

      77dec4d79e1e844a2156f101defc0fc81c138a989e8ba1c722c58feb91b3cd4a

      SHA512

      8494ab9fe0594f3ff7b0893ca3e25d6d0a706e546e92c5b662aa864affcefe5f9721a6a95f37f40cdacf39d27a23e2b3cd5dbca4d7b8909cd7c186209d4b46db

    • C:\Users\Admin\AppData\Local\Temp\7z7A4A1328\skin.zip
      Filesize

      509KB

      MD5

      ecb43530caf9566c1b76d5af8d2097f1

      SHA1

      34562ada66cd1501fcb7411a1e1d86729fd7fdc0

      SHA256

      a12381f97aee2d91568f44b23e866ccc99f0ae5e5961f318ed24b72f4f5da80a

      SHA512

      4a243c0bc4dbaf892bee91ea7eff9e6a7732d3aa2df5bebd9a4bea2859a30a8511945ce3bb823f7ef921f2e1a98906fb676fce85f25fd5908646b3a2f5d02563

    • \Users\Admin\AppData\Local\Temp\7z7A4A1328\MuMuDownloader.exe
      Filesize

      5.7MB

      MD5

      2f3d77b4f587f956e9987598b0a218eb

      SHA1

      c067432f3282438b367a10f6b0bc0466319e34e9

      SHA256

      2f980c56d81f42ba47dc871a04406976dc490ded522131ce9a2e35c40ca8616e

      SHA512

      a63afc6d708e3b974f147a2d27d90689d8743acd53d60ad0f81a3ab54dfa851d73bcb869d1e476035abc5e234479812730285c0826a2c3da62f39715e315f221

    • \Users\Admin\AppData\Local\Temp\7z7A4A1328\nemu-downloader.exe
      Filesize

      3.2MB

      MD5

      cdf8047ceae80d9cd9eb798a57bf6084

      SHA1

      8e7971401fada3099aed61849745fda37e1c0d32

      SHA256

      1f01a9abac64fae72e0a253ad9ffe2d62cd2967c1c2bc90fb956ac446fe2b11e

      SHA512

      ac366f38f39b935110192d1355147392ced5a21966cc22386804356dce24b2da7971a6a60d675689f93d74014d961bfb3b0c13cf06809b9f9feef580045e20dc

    • memory/1092-153-0x0000000140000000-0x00000001405E8000-memory.dmp
      Filesize

      5.9MB

    • memory/1092-152-0x0000000140000000-0x00000001405E8000-memory.dmp
      Filesize

      5.9MB

    • memory/2392-151-0x0000000000FB0000-0x0000000001565000-memory.dmp
      Filesize

      5.7MB

    • memory/3052-111-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-119-0x0000000002250000-0x000000000225A000-memory.dmp
      Filesize

      40KB

    • memory/3052-88-0x0000000002250000-0x000000000225A000-memory.dmp
      Filesize

      40KB

    • memory/3052-87-0x0000000002250000-0x000000000225A000-memory.dmp
      Filesize

      40KB

    • memory/3052-90-0x0000000002250000-0x000000000225A000-memory.dmp
      Filesize

      40KB

    • memory/3052-113-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-116-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-115-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-114-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-112-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-117-0x0000000002250000-0x000000000225A000-memory.dmp
      Filesize

      40KB

    • memory/3052-89-0x0000000002250000-0x000000000225A000-memory.dmp
      Filesize

      40KB

    • memory/3052-121-0x0000000002250000-0x000000000225A000-memory.dmp
      Filesize

      40KB

    • memory/3052-120-0x0000000002250000-0x000000000225A000-memory.dmp
      Filesize

      40KB

    • memory/3052-118-0x0000000002250000-0x000000000225A000-memory.dmp
      Filesize

      40KB

    • memory/3052-78-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-79-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-140-0x0000000000340000-0x0000000000344000-memory.dmp
      Filesize

      16KB

    • memory/3052-80-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-81-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-82-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB

    • memory/3052-83-0x0000000000340000-0x000000000034A000-memory.dmp
      Filesize

      40KB