Malicious PDF — malware analysis report

Static analysis result for SHA-256 16eea22ee2ac0a4c…

MALICIOUS

PDF

43.6 KB Created: 2021-06-11 07:41:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 00e16c57f6b83f6f5e8f8d762faeaecb SHA-1: e5e5b78e8c26b940b2f009f795afcb680cc309aa SHA-256: 16eea22ee2ac0a4cb75a53ec0997dcdbe32ac6f6dc55c632a98d2432cdfb14fc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, specifically promoting a 'game hack' lure. The ML classifier also flagged the document as malicious. While no scripts were extracted, the embedded URLs and the nature of the lure suggest an attempt to redirect the user to a site that likely hosts a malicious payload or exploits. The document body, though heavily corrupted, contains fragments of the lure text and URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/hacks-para-robar-todo-sin-hacer-nada-en-roblox-jailbreak-game-hack In PDF document text
    • http://demenagementlandry.com/images/8-bit-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-download-coin-master_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/roblox-console-hack_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/roblox-girl-avatar_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
    • http://demenagementlandry.com/images/pubg-uc-ykleme-midasbuy_GM1330123889.pdfIn PDF document text
    • http://demenagementlandry.com/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://demenagementlandry.com/images/tiktok-free-views_GM835599320.pdfIn PDF document text
    • http://demenagementlandry.com/images/hacks-para-roblox-2021-descargar_GM431946152.pdfIn PDF document text
    • http://demenagementlandry.com/images/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://demenagementlandry.com/images/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F24 24976 bytes
SHA-256: 23918669728ed7ff4bcdb5f8b1d9c7d4d7b82aefe5f96875a7b738a394492cdd
font_01_sfnt_off00008603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8603 18796 bytes
SHA-256: 1a35f3db3c4751ca24ffb6ecc1e20bef438af14ea53569c695257104dea42549

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