Malicious PDF — malware analysis report

Static analysis result for SHA-256 899c43229a2a7f93…

MALICIOUS

PDF

86.8 KB Created: 2020-08-02 02:40:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 00217971c78c7c14c7242cc2795aecb8 SHA-1: 4903e092e194bee6747191c6c1da43fe70684f55 SHA-256: 899c43229a2a7f93247eeced9c6367f62708a6df28f6b4c3f9eac833188a65c9
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to a known malicious infrastructure, specifically `https://ttraff.ru/pify?keyword=warlock+leveling+spec+1-+110`. This URL is presented as a lure for a free download, indicating a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.ru/pify?keyword=warlock+leveling+spec+1-+110 In PDF document text
    • http://files.coronadoswcd.org/uploads/1/3/0/7/130738955/8498539.pdfIn PDF document text
    • http://files.thenewportshow.org/uploads/1/3/1/6/131607943/4db7c5210.pdfIn PDF document text
    • http://files.dealingwithstuff.com/uploads/1/3/1/8/131856270/ramosik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7386/2821/files/kawotagelidiweged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/pozupimobabagoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7348/6496/files/galuloxipuripimufuzuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/4766/9160/files/massey_harris_44.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0790/0835/files/netizawisubajesenunewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/xarufapupiraladilixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/sunirenavefowuxosat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/danedogorolulefumatexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/minirefotapobizezuloxot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9535/0684/files/xewulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7795/7800/files/28218335459.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/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
font_00_sfnt_off00010079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10079 5464 bytes
SHA-256: 889646ffd342f471eefd03bfb1ee4864dc5939e86fcbe5c84dbd87431e385235
font_01_sfnt_off00011341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11341 10652 bytes
SHA-256: 436d8a5f9284cf57c39272496d71eddf47f42fc67fb6636c599e085817e0e2ee
font_02_sfnt_off000137e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137E0 16312 bytes
SHA-256: b2563e85233037e3c2780690ed1455257f868516b5a962e54e6ffe29314c9cb1

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