Malicious PDF — malware analysis report

Static analysis result for SHA-256 b256e110f2d87bcd…

MALICIOUS

PDF

35.8 KB Created: 2021-07-09 21:00:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 8df9036ebd7c56552c5a1eb54ed020c3 SHA-1: d9d65ca9d4e1078b29bd8af8662427b4bda454af SHA-256: b256e110f2d87bcd144fb501d09f76aa12222162a2b2c799c64dfd27a1833df5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and lures for game hacks. The document body explicitly mentions 'Minecraft 114 4 Download' and includes the malicious URL, reinforcing the lure. The presence of a visual download button further supports the deceptive nature of the document.

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-114-4-download-game-hack In PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/free-robux-and-limiteds_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/roblox-money-script-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/minecraft-xbox-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/how-to-change-roblox-name-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/hacks-master-coin_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/bandicam-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/free-catalog-roblox-ja_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmuhajirindps.sch.id/__statics/gudangsoal/files/roblox-hack-tool_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
font_00_sfnt_off000034e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34E0 22828 bytes
SHA-256: e01d8b30cac85f0e31e3f1472d3a47f805b78ae88c87fa4114ccd89c2d57fd19
font_01_sfnt_off0000680c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x680C 18744 bytes
SHA-256: e04c8dad389fa8ddb6e9166dcfd52ae6ae64cc707c2c66a8db2dd3b8bc072aff

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