Overview

overview

6

Static

static

1

MuMuInstal...05.exe

windows10-1703-x64

6

Analysis

  • max time kernel
    46s
  • max time network
    49s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09-08-2024 02:57

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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
discovery

Malware Config

Signatures

  • Downloads MZ/PE file
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 4 IoCs
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

    discovery
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: LoadsDriver 4 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 21 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\nemu-downloader.exe
      C:\Users\Admin\AppData\Local\Temp\7z75DFB824\nemu-downloader.exe
      2⤵
      • Enumerates connected drives
      • Checks computer location settings
      • Drops file in Program Files directory
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:484
      • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\ColaBoxChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z75DFB824\ColaBoxChecker.exe" checker /baseboard
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3992
      • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\HyperVChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z75DFB824\HyperVChecker.exe"
        3⤵
        • Executes dropped EXE
        PID:4824
      • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\HyperVChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z75DFB824\HyperVChecker.exe"
        3⤵
        • Executes dropped EXE
        PID:2548
      • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\HyperVChecker.exe
        "C:\Users\Admin\AppData\Local\Temp\7z75DFB824\HyperVChecker.exe"
        3⤵
        • Executes dropped EXE
        PID:1800
      • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\MuMuDownloader.exe
        "C:\Users\Admin\AppData\Local\Temp\7z75DFB824\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=49825 --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=484
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:8
      • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\7z.exe
        "C:\Users\Admin\AppData\Local\Temp\7z75DFB824\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:3600
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1640
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:4556
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3392
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1752
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Drops file in Windows directory
    • Modifies registry class
    PID:4228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\Temp\~DF8E5D97FFA80E813A.TMP
    Filesize

    16KB

    MD5

    35dc577d22078f8f052875286a5e4a0c

    SHA1

    8f66c348257561efd1e19bafd1068ff949b6be14

    SHA256

    801060bb39d689e8c4b2b7c6180e28c61556c0d7da68d40706f01a7abcdef392

    SHA512

    b90b815951abbe02f43bf2adc443e2678d821a8bf931ffc14386faee75a63257ab6b625044693333999259ffc711a2c24c8a400d9566c75ca6e0a3ad007c4881

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\7z.exe
    Filesize

    292KB

    MD5

    97b382235264f18a53eff8e891997920

    SHA1

    cc0f3ad9411f54f70a2b1a1705e24048b06ea65c

    SHA256

    bf42783c293279c65b00e4f8b72be39e1cb0fcbe14d6679151b0d5e27fd8572d

    SHA512

    1e780698dbc0963ccbd73976da6898b3c0dc4b4e655a80563585518abd37a1a5561a980d035123011213a83c76320de6c08541caa71bfd6582eb93ff57672a83

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\ColaBoxChecker.exe
    Filesize

    4.0MB

    MD5

    839708e3f96cf055436fa08d6205263c

    SHA1

    a4579f8cb6b80fe3fd50099794f63eb51be3292f

    SHA256

    1373c5d006a5dbcd9b86cfff9a37616f1245d1333c4adcefc7cd18926b98d752

    SHA512

    ece67e031e06a0442d935e7d81d0eed57ae92b348b5d104423577478ce226e4a4bde834c54e31d33bfe6f574fb7798ba96886d9e8edb738edee6e7c9c43054cd

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\HyperVChecker.exe
    Filesize

    117KB

    MD5

    dbd84c6083e4badf4741d95ba3c9b5f8

    SHA1

    4a555adf8e0459bfd1145d9bd8d91b3fff94aad0

    SHA256

    9ff467bc5a1c377102d25da9fa9c24dcc4375f456510f71584f0714fdfb2af39

    SHA512

    fb5fe74f64254609e07d6642acf904562bb905cd7c14c6f85ba31bcdbaf06686c0586609ec4f5d2f8f55ff90334dcbb774a3a6e78df74bf1b1d0cd03dec21870

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\MuMuDownloader.exe
    Filesize

    5.7MB

    MD5

    2f3d77b4f587f956e9987598b0a218eb

    SHA1

    c067432f3282438b367a10f6b0bc0466319e34e9

    SHA256

    2f980c56d81f42ba47dc871a04406976dc490ded522131ce9a2e35c40ca8616e

    SHA512

    a63afc6d708e3b974f147a2d27d90689d8743acd53d60ad0f81a3ab54dfa851d73bcb869d1e476035abc5e234479812730285c0826a2c3da62f39715e315f221

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\baseboard
    Filesize

    113B

    MD5

    00fb83094fd63e476b759f5a303cbaf6

    SHA1

    2f2fd8086db5fa025652ccfd636d97382f398d83

    SHA256

    f78b98432b94d5e04b8b31f96d0ee7684e6847aff012a2e6bbaa48d352134689

    SHA512

    f2aa6c531ab034ee9e7461ae2c98cfa6fb9c642e396f8b11cd1b17f55b5e8006c93c1ef8900ac1d26ca13b6e0b21763392bc7be676b2fa55ad70270a7a397de2

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\config.ini
    Filesize

    346B

    MD5

    d00fb4c61a255b58ff09886c6c72461b

    SHA1

    4e4f7d7ae36f67a4d6fc8479f8400b3eb769e978

    SHA256

    77dec4d79e1e844a2156f101defc0fc81c138a989e8ba1c722c58feb91b3cd4a

    SHA512

    8494ab9fe0594f3ff7b0893ca3e25d6d0a706e546e92c5b662aa864affcefe5f9721a6a95f37f40cdacf39d27a23e2b3cd5dbca4d7b8909cd7c186209d4b46db

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\nemu-downloader.exe
    Filesize

    3.2MB

    MD5

    cdf8047ceae80d9cd9eb798a57bf6084

    SHA1

    8e7971401fada3099aed61849745fda37e1c0d32

    SHA256

    1f01a9abac64fae72e0a253ad9ffe2d62cd2967c1c2bc90fb956ac446fe2b11e

    SHA512

    ac366f38f39b935110192d1355147392ced5a21966cc22386804356dce24b2da7971a6a60d675689f93d74014d961bfb3b0c13cf06809b9f9feef580045e20dc

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\7z75DFB824\skin.zip
    Filesize

    509KB

    MD5

    ecb43530caf9566c1b76d5af8d2097f1

    SHA1

    34562ada66cd1501fcb7411a1e1d86729fd7fdc0

    SHA256

    a12381f97aee2d91568f44b23e866ccc99f0ae5e5961f318ed24b72f4f5da80a

    SHA512

    4a243c0bc4dbaf892bee91ea7eff9e6a7732d3aa2df5bebd9a4bea2859a30a8511945ce3bb823f7ef921f2e1a98906fb676fce85f25fd5908646b3a2f5d02563

    Download Submit

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

    22B

    MD5

    76cdb2bad9582d23c1f6f4d868218d6c

    SHA1

    b04f3ee8f5e43fa3b162981b50bb72fe1acabb33

    SHA256

    8739c76e681f900923b900c9df0ef75cf421d39cabb54650c4b9ad19b6a76d85

    SHA512

    5e2f959f36b66df0580a94f384c5fc1ceeec4b2a3925f062d7b68f21758b86581ac2adcfdde73a171a28496e758ef1b23ca4951c05455cdae9357cc3b5a5825f

    Download Submit

  • \Users\Admin\AppData\Local\Temp\7z75DFB824\7z.dll
    Filesize

    1.1MB

    MD5

    0ffa2bff9e56e6122aec80d3c1119d83

    SHA1

    09b7eb124b8c83469ae7de6447d1b8a7f5c98c61

    SHA256

    609cba3a8704aa6f5e2623858402bc048de7198a3567a53183bf97de091a3e48

    SHA512

    42522bf850156577de397e527b8515b1bf0bdeceb170efae71d87c39a25c72c155a2fec6a88b5c3ae443752046f8840cd8afac9c42ed7bcf67aeb9e78aeb5f2e

    Download Submit

  • memory/8-72-0x0000000001010000-0x00000000015C5000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/8-77-0x0000000001010000-0x00000000015C5000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/8-220-0x0000000001010000-0x00000000015C5000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1640-78-0x000002B8C2E20000-0x000002B8C2E30000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1640-113-0x000002B8C0290000-0x000002B8C0292000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1640-207-0x000002B8C71E0000-0x000002B8C71E2000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1640-210-0x000002B8C02C0000-0x000002B8C02C1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1640-214-0x000002B8C0280000-0x000002B8C0281000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1640-95-0x000002B8C2F30000-0x000002B8C2F40000-memory.dmp

    Filesize

    64KB

    Download

  • memory/4228-142-0x00000196E1F30000-0x00000196E1F32000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4228-145-0x00000196E1F60000-0x00000196E1F62000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4228-147-0x00000196E1F80000-0x00000196E1F82000-memory.dmp

    Filesize

    8KB

    Download