Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db85a9704a508a1…

MALICIOUS

PDF

44.9 KB Created: 2021-06-03 22:56:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f802ce090dcf463105975a47f4f09f2a SHA-1: dbffe5f842172f3390986ebae4ddb9328be55190 SHA-256: 7db85a9704a508a176f2ab9c12c158672ff21ab7269c74f5505da712e9ff31d6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/minecraft-free-online-game-hack PDF link annotation
    • http://perpustakaan-stikesmsb.com/repository/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/gamehunters-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-controversy_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/pubg-uc-apk_GM1330123889.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-free-executor_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/apps-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/can-you-get-robux-for-free_GM431946152.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_off00005454.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5454 25844 bytes
SHA-256: 43fa388de196cba3435eedc84568ac3a1dd47cc4d26dd3058b4a3a5fb5df247a
font_01_sfnt_off00008f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F00 17644 bytes
SHA-256: d3a8b3d8bd2249c6206e1557dca74d08ec9c3b58c2328dc4779a04ae87c22ca2

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