Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaa72d15cd508cf5…

MALICIOUS

PDF

43.2 KB Created: 2021-05-19 00:17:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 09c6be662d89216cf6bf331367fe7b41 SHA-1: 69ed003906a685fbba0bb9d00abdbffaecc3dbbb SHA-256: eaa72d15cd508cf5ff7b0af32ff82c8cfcab761099571515fab6e8371960933f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links that redirect to scam websites, specifically advertising 'game hacks' and 'free currency'. The heuristic firings indicate these links point to known malicious redirector infrastructure. The document body and embedded links suggest a lure for users seeking in-game advantages, which is a common social engineering tactic to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/406889139/coin-master-hack-2021-app-game-hack In PDF document text
    • http://uo-nn.ru/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://uo-nn.ru/images/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://uo-nn.ru/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://uo-nn.ru/images/master-free-spin-and-coin-links-html-m-1_GM406889139.pdfIn PDF document text
    • http://uo-nn.ru/images/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • http://uo-nn.ru/images/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://uo-nn.ru/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://uo-nn.ru/images/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • http://uo-nn.ru/images/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • http://uo-nn.ru/images/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • http://uo-nn.ru/images/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://uo-nn.ru/images/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://uo-nn.ru/images/coin-master--hack_GM406889139.pdfIn PDF document text
    • http://uo-nn.ru/images/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
    • http://uo-nn.ru/images/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • http://uo-nn.ru/images/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://uo-nn.ru/images/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://uo-nn.ru/images/free-shields-coin-master_GM406889139.pdfIn PDF document text
    • http://uo-nn.ru/images/robux-hack_GM431946152.pdfIn PDF document text
    • http://uo-nn.ru/images/free-spins-coin-master-cheats_GM406889139.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
stream_003_off000048ee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48EE 26748 bytes
SHA-256: ffc6cc1eb996a4beac13e1d6f1ec91f5a54e94c17dab1664aef4f3a09d8acb8a
font_01_sfnt_off00008677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8677 18296 bytes
SHA-256: 0171898879de63f826772f1aaca43c4afb825f5f143e0263167d5c085c4f41c3

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