Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea1f029eb047ea3e…

MALICIOUS

PDF

33.1 KB Created: 2021-07-08 06:59:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 2dfa933d2b529e83f5d335e9e3287626 SHA-1: beee33d006b7fe0a4c9f8e163e89f9081516f27f SHA-256: ea1f029eb047ea3e60ec23fb543a69e2ea635fb11bd263524effde5d627d73da
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The primary redirector URL is http://netcdn.tw/app/479516143/minecraft-mod-updater-game-hack, which is associated with known malicious redirector activity. The document body and heuristics indicate a lure for users interested in free game-related content, likely leading to further malware downloads or phishing. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/minecraft-mod-updater-game-hack In PDF document text
    • https://3qblocks.com.tw/image/data/files/solos-v-12-roblox-hack_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/roblox-how-to-get-headless-head-for-free_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/what-website-gives-you-free-robux_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-free-robux-no-hack_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-roblox-scripting-book_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-stuff-catalog-roblox_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/download-free-robux-giver_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-free-robux-20219_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/roblox-10-dollar-gift-card-free_GM431946152.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_off00002eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB6 21620 bytes
SHA-256: 76cc7233e47dc1f2e2109a72ec7fd5ab028b51643ce5d3022f2ff0b05c02ad1a
font_01_sfnt_off00005de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE6 18536 bytes
SHA-256: 52781d84740849c115554bd09d54659b8c4f2032a6c1f8ee0076bc2322f88e3e

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