Malicious PDF — malware analysis report

Static analysis result for SHA-256 6659148449f07574…

MALICIOUS

PDF

46.3 KB Created: 2021-06-03 05:31:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 1d759e4788138de517ea2a5b8b77be5b SHA-1: b8b40266f445a3c294c5d4664abcbba731ead647 SHA-256: 6659148449f075741afe0b5d9d042056bf6f75a2086c952dc999c6b46559c115
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs that redirect to malicious sites, masquerading as game hacks or generators. The heuristic firings confirm these links point to known malicious redirectors and lure users with promises of free game items. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt designed to lead the user to a compromised website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.online/app/479516143/play-minecraft-online-free-game-hack In PDF document text
    • https://mbbs.hr/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • http://mbbs.hr/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://mbbs.hr/files/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/free-robux-website_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/pokemon-go-free-to-download_GM1094591345.pdfIn PDF document text
    • http://mbbs.hr/files/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/pokemon-go-free-007_GM1094591345.pdfIn PDF document text
    • https://mbbs.hr/files/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050e6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50E6 29700 bytes
SHA-256: 5f03837a9281e2cdd35191624018e5aba57110d56f7e85169fddcbd75f6619e1
font_01_sfnt_off000093da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93DA 17976 bytes
SHA-256: e953997c623ab1bd3546e7b188ca680e36d1015a1cf7f46efbbf98890a47325d

Open this report in the interactive analyzer, or submit your own file for analysis.