Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10e6eba21b62502…

MALICIOUS

PDF

43.2 KB Created: 2021-05-14 20:13:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: fbcb5623a0af72f1ee36144c6a4121b6 SHA-1: 7da11c5363d4cebd4792c8e87dc2cf05437eed46 SHA-256: e10e6eba21b6250224336c740eec1642e1e6b49f56134ab403d8c9ad8cf4394e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, directing users to a known malicious redirector. The embedded URLs and the document body content strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/hack-coin-master-without-human-verification-game-hack In PDF document text
    • http://olimpik.mk/imagescke/upload/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spins-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/mcpe-optifine_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spins-link-download-free_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/gain-robux_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/how-to-hack-someones-minecraft-account_GM479516143.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
stream_003_off00004c53.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C53 25132 bytes
SHA-256: ecdf052d7c473e7ba9cdc9190f4bde94935886509370316c0da613df0e4a74ed
font_01_sfnt_off000085a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A5 18612 bytes
SHA-256: 2f49066605dfba94c6589b8ca168210881056bf0d5189927bbd995bae553d4f8

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