Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfc6abf5b18f830e…

MALICIOUS

PDF

43.0 KB Created: 2021-05-12 21:03:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 43a4a62fcd293cf141505cdae25b104f SHA-1: 7b209f65839a85a301594503aaf7a55d27af333f SHA-256: dfc6abf5b18f830e0057762c2f24ed4dab60dca228c7a1f3b6faa04cb4616a47
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including one identified as a malicious redirector. The document body and heuristics suggest a lure related to game hacks and free generators, aiming to trick users into clicking these links. The presence of embedded URLs and the nature of the lures indicate a phishing or social engineering attack, likely leading to further malicious content or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/479516143/how-to-hack-a-minecraft-server-and-make-yourself-op-game-hack In PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/get-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/robux-free-online_GM431946152.pdfIn PDF document text
    • http://e-learningman14jakarta.com/__statics/gudangsoal/files/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
    • https://code.giftcards.comIn 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_003_off00004c7c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C7C 24344 bytes
SHA-256: ac2de4b610a7a89f5b606592aede0070f14f1ce6ab78921be6d46be168ca1128
font_01_sfnt_off00008430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8430 18884 bytes
SHA-256: c6c75348c8512da505ae943a266b7446b2e14ebdee3fe9748eb8d749779a3ee4

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