Malicious PDF — malware analysis report

Static analysis result for SHA-256 7814a2532eb43673…

MALICIOUS

PDF

36.5 KB Created: 2021-05-21 02:01:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 48e33d6bbff2afc263202decc03c3ce0 SHA-1: 1b7a758d63bac5d0d014374357f68698fe95e9b0 SHA-256: 7814a2532eb43673ce5d221be7c74b12584e5584463e427e912b9b9e60201621
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links, specifically luring users with "game hack" and "free spins" content. The embedded URLs and document body text reinforce this lure, pointing towards a phishing or malware distribution scheme. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to exploit users through social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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-free-spins-link-today-new-game-hack In PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-hack-apk-2021-download_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_002_off000034ef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34EF 24276 bytes
SHA-256: 093051897446a83659c1e200ab6d242d799dc4a5dc3560e0ddf471a91d30e38e
font_01_sfnt_off00006c4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4D 18572 bytes
SHA-256: 51c95658009ee6a6ae875a8d4133a79c51d36fbd34bac1203a2f2fe060da7c96

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