Malicious PDF — malware analysis report

Static analysis result for SHA-256 955adcd86e71930a…

MALICIOUS

PDF

34.9 KB Created: 2021-06-28 13:48:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b0a9f6ef858ac5cfadbd13c9aa0952ec SHA-1: 2c6c693c71e1f83281fb3b708310422520d7c4ae SHA-256: 955adcd86e71930a8cf6df10d8fa59cd653de92009304903d79b7beac39ccb5f
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirectors and sites offering game hacks, indicative of a phishing or scam lure. The document body and embedded URLs suggest a social engineering attempt to trick users into downloading potentially malicious content. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence score strongly suggest a 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.co/app/431946152/roblox-cheats-android-game-hack In PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-hack-any-roblox-game-using-javascript_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-the-riding-pass-for-roblox-free_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-noot-noot-hack-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/robux-for-offers_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-can-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/unlock-all-guns-in-roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/roblox-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/titan-hack-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-make-your-own-shirt-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-promocodes-for-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/get-free-robux-skin-tone_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-free-spins-link_GM406889139.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_off000030df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DF 22516 bytes
SHA-256: 1ed0a2a3c2b8cba8369ef2090436d5a8890a9d07703dcedc8490f4a708595c4e
font_01_sfnt_off00006324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6324 19048 bytes
SHA-256: 2bf6ba501ff92dce288ffad454390579a3d22fc97d9cfdbaa2f0f3502090f92b