Malicious PDF — malware analysis report

Static analysis result for SHA-256 10e1b69fd31e0ebf…

MALICIOUS

PDF

46.3 KB Created: 2021-05-14 09:30:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c6020459ed454baa541b5d1d2da3b251 SHA-1: c7fedc8a1f26f433b3500e0011b266c8850fc227 SHA-256: 10e1b69fd31e0ebfcced8afd135b289a96f2cefa3f31428fb9bd37cf51e5be0f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites that are flagged as malicious redirectors, specifically promoting 'free generators' and 'game hacks' for popular games. The presence of a 'download button' heuristic and the ML classifier further support its malicious nature. The primary attack vector appears to be luring users to click these links, which likely leads to a scam or a subsequent malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8696

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-instagram-free-spins-game-hack In PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-site_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/roblox-trolling_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-to-get-free-robux-easy-on-phone_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cc6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CC6 24760 bytes
SHA-256: 6471fe2aee86cad8ccbaf8fb75b3fc0031b9f34aeb29085cb23bec80aafe44e9
font_01_sfnt_off00008490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8490 4020 bytes
SHA-256: dbaa9c12d07f3632734605f1d5d6dee3ad5af1f57488e46d95dab68b383f08c5
font_02_sfnt_off00009217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9217 18432 bytes
SHA-256: dd21024a3a9b07f357a6a0b8e17fafd6007ea37835f944b4d5a0c49956a5fb59

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