Malicious PDF — malware analysis report

Static analysis result for SHA-256 0863624877ab99a4…

MALICIOUS

PDF

46.9 KB Created: 2020-08-17 17:00:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c9b2069943ed74e145648defdf0d9c0 SHA-1: 06b41ff03a061fd106ef6193444d48fa150690be SHA-256: 0863624877ab99a429bdbf09d54b0c339e62eb0464486bce7ba798df56d2695a
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. This indicates a link farm or SEO poisoning attack designed to lure users to potentially harmful sites. The presence of embedded links and the overall structure suggest an attempt to deliver users to malicious content, likely through a phishing or scam pretext.

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=nariman+malayalam+movie+bgm In PDF document text
    • http://files.myrandastangeland.com/uploads/1/3/1/3/131384208/rixelutawejot.pdfIn PDF document text
    • http://files.christinecarr.com/uploads/1/3/2/6/132682685/nuwimijuwuko.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32878299647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5974/files/77963834442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/506_assignment_answer_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8144/9118/files/gadituwoxetajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3731/9590/files/46952555234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/50357299980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/42276055653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lorabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/3994392769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8031/9130/files/adjectives_prepositions_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/wikibixufibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2456/1829/files/20776641671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9221/3911/files/ashrae_refrigeration_handbook_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7084/9181/files/66832910357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/lesamegokolizoxufalax.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D16 4804 bytes
SHA-256: bcc16abe8ab017d8467aa8cad033bb72057de66942a71b9e6af2c1aaf45e502b
font_01_sfnt_off00007d59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D59 10096 bytes
SHA-256: 3f8014eeb20547a791d583cc455903a77cb974cb5931caef0672bc9a201c7fd9
font_02_sfnt_off0000a005.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA005 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361