Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    08-08-2024 14:13

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
4/10

Malware Config

Signatures

  • Drops file in Windows directory 1 IoCs
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 27 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 44 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:2852
    • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\nemu-downloader.exe
      C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\nemu-downloader.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\ColaBoxChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\ColaBoxChecker.exe" checker /baseboard
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2760
      • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\HyperVChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\HyperVChecker.exe"
        3⤵
        • Executes dropped EXE
        PID:1312
      • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\HyperVChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\HyperVChecker.exe"
        3⤵
        • Executes dropped EXE
        PID:3020
      • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\7z.exe
        "C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\7z.exe" a -tzip "C:\Users\Admin\AppData\Local\Temp\nemux.zip" "C:\Users\Admin\AppData\Local\Temp\nemux"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2144
      • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\HyperVChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\HyperVChecker.exe"
        3⤵
        • Executes dropped EXE
        PID:2748
      • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\7z.exe
        "C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\7z.exe" a -tzip "C:\Users\Admin\AppData\Local\Temp\nemux.zip" "C:\Users\Admin\AppData\Local\Temp\nemux"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1936
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2768 -s 1460
        3⤵
        • Program crash
        PID:2112
  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\Desktop\MoveUpdate.docx"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1136
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1908

    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\Temp\7z70D9AB24\7z.dll
      Filesize

      1.1MB

      MD5

      0ffa2bff9e56e6122aec80d3c1119d83

      SHA1

      09b7eb124b8c83469ae7de6447d1b8a7f5c98c61

      SHA256

      609cba3a8704aa6f5e2623858402bc048de7198a3567a53183bf97de091a3e48

      SHA512

      42522bf850156577de397e527b8515b1bf0bdeceb170efae71d87c39a25c72c155a2fec6a88b5c3ae443752046f8840cd8afac9c42ed7bcf67aeb9e78aeb5f2e

    • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\7z.exe
      Filesize

      292KB

      MD5

      97b382235264f18a53eff8e891997920

      SHA1

      cc0f3ad9411f54f70a2b1a1705e24048b06ea65c

      SHA256

      bf42783c293279c65b00e4f8b72be39e1cb0fcbe14d6679151b0d5e27fd8572d

      SHA512

      1e780698dbc0963ccbd73976da6898b3c0dc4b4e655a80563585518abd37a1a5561a980d035123011213a83c76320de6c08541caa71bfd6582eb93ff57672a83

    • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\ColaBoxChecker.exe
      Filesize

      4.0MB

      MD5

      839708e3f96cf055436fa08d6205263c

      SHA1

      a4579f8cb6b80fe3fd50099794f63eb51be3292f

      SHA256

      1373c5d006a5dbcd9b86cfff9a37616f1245d1333c4adcefc7cd18926b98d752

      SHA512

      ece67e031e06a0442d935e7d81d0eed57ae92b348b5d104423577478ce226e4a4bde834c54e31d33bfe6f574fb7798ba96886d9e8edb738edee6e7c9c43054cd

    • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\HyperVChecker.exe
      Filesize

      117KB

      MD5

      dbd84c6083e4badf4741d95ba3c9b5f8

      SHA1

      4a555adf8e0459bfd1145d9bd8d91b3fff94aad0

      SHA256

      9ff467bc5a1c377102d25da9fa9c24dcc4375f456510f71584f0714fdfb2af39

      SHA512

      fb5fe74f64254609e07d6642acf904562bb905cd7c14c6f85ba31bcdbaf06686c0586609ec4f5d2f8f55ff90334dcbb774a3a6e78df74bf1b1d0cd03dec21870

    • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\baseboard
      Filesize

      113B

      MD5

      9b317dde089fae4f949cbd593f5c65f8

      SHA1

      e9263f63df9bc28fb17bb27e6deac87db10fe4ff

      SHA256

      e05aab29acdfdc28395133014b0b0a1553e5189e51d880b24aae002d7cf1154b

      SHA512

      d6e0ec70fc79a8ba4b9ed05dc0b61179c3728d021795fc4bf252b9e78c84c9e0cf162a88cb5f331ace171f130225950e4225eeee3f48d1587ebd602e1a680700

    • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\config.ini
      Filesize

      346B

      MD5

      d00fb4c61a255b58ff09886c6c72461b

      SHA1

      4e4f7d7ae36f67a4d6fc8479f8400b3eb769e978

      SHA256

      77dec4d79e1e844a2156f101defc0fc81c138a989e8ba1c722c58feb91b3cd4a

      SHA512

      8494ab9fe0594f3ff7b0893ca3e25d6d0a706e546e92c5b662aa864affcefe5f9721a6a95f37f40cdacf39d27a23e2b3cd5dbca4d7b8909cd7c186209d4b46db

    • C:\Users\Admin\AppData\Local\Temp\7z70D9AB24\skin.zip
      Filesize

      509KB

      MD5

      ecb43530caf9566c1b76d5af8d2097f1

      SHA1

      34562ada66cd1501fcb7411a1e1d86729fd7fdc0

      SHA256

      a12381f97aee2d91568f44b23e866ccc99f0ae5e5961f318ed24b72f4f5da80a

      SHA512

      4a243c0bc4dbaf892bee91ea7eff9e6a7732d3aa2df5bebd9a4bea2859a30a8511945ce3bb823f7ef921f2e1a98906fb676fce85f25fd5908646b3a2f5d02563

    • C:\Users\Admin\AppData\Local\Temp\nemux-downloader-5e6a225e-7bfc-49c5-ae08-c7882dc794c0.log
      Filesize

      60KB

      MD5

      88cec846ecb4a9e07652c858da00200f

      SHA1

      202d7f5f09cfcdd98b64ffd582195f66bdd4520d

      SHA256

      e0c59f5d8123a5ece07d7563c18e4d935cd17c03a370917c7cc519dfa4f852a6

      SHA512

      68e5c2fc732b02ca173ee332a8a74a3893eecf83bd71a50fdd8937fe517e005d92a999e1f3f191193d1883fdd976377b3f70766c6a602320e7d2140cc583a80f

    • C:\Users\Admin\AppData\Local\Temp\nemux.zip
      Filesize

      22B

      MD5

      76cdb2bad9582d23c1f6f4d868218d6c

      SHA1

      b04f3ee8f5e43fa3b162981b50bb72fe1acabb33

      SHA256

      8739c76e681f900923b900c9df0ef75cf421d39cabb54650c4b9ad19b6a76d85

      SHA512

      5e2f959f36b66df0580a94f384c5fc1ceeec4b2a3925f062d7b68f21758b86581ac2adcfdde73a171a28496e758ef1b23ca4951c05455cdae9357cc3b5a5825f

    • C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex
      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • \Users\Admin\AppData\Local\Temp\7z70D9AB24\nemu-downloader.exe
      Filesize

      3.2MB

      MD5

      cdf8047ceae80d9cd9eb798a57bf6084

      SHA1

      8e7971401fada3099aed61849745fda37e1c0d32

      SHA256

      1f01a9abac64fae72e0a253ad9ffe2d62cd2967c1c2bc90fb956ac446fe2b11e

      SHA512

      ac366f38f39b935110192d1355147392ced5a21966cc22386804356dce24b2da7971a6a60d675689f93d74014d961bfb3b0c13cf06809b9f9feef580045e20dc

    • memory/1136-95-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB