Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae1fc53e95ce608d…

MALICIOUS

PDF

39.9 KB Created: 2020-08-23 05:58:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5c6cc026a8a20ad9238afb3a7f220ae SHA-1: aac0258dd64995b9569bf89ae7aa2b565cb55c6e SHA-256: ae1fc53e95ce608dc69fabe38f62adfe4e7d83a5b54cd74ef3565c8b0ff079f4
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm and a malicious redirector, indicating a lure to download potentially malicious content. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.ru/pify?keyword=audio+video+joiner+for+pc as malicious. The presence of a visual download button further supports the social engineering aspect of this attack. No scripts were extracted, limiting further analysis of the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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
  • 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=audio+video+joiner+for+pc In PDF document text
    • http://files.shupesontheboardwalk.com/uploads/1/3/0/7/130775229/d87e3a2f6ff0e.pdfIn PDF document text
    • http://files.thekissroom.com/uploads/1/3/1/4/131452867/72e2c29979fa.pdfIn PDF document text
    • http://reval.friendsofhawaiianislands.org/uploads/1/3/0/8/130874050/musujixofonube.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/1/0465/0578/7542/files/magic_tricks_with_playing_cards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/15138334831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9162/4097/files/62257109320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0750/files/86421529557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baludugosutagaxoreforodul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6337/8081/files/biviluxon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9017/3349/files/rewamukema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/3766/3903/files/59422668958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8360/3876/files/alter_ego_plus_3_gratis.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

Related samples 6

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
font_00_sfnt_off00005f29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F29 4852 bytes
SHA-256: f55a2e5dfed0cb6069ff32e1b1bd4d3c188caca99659bfb86b339f78fb4dfe25
font_01_sfnt_off00006fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC4 10404 bytes
SHA-256: cb7b5081462e90c24aa128db0d6613f5a6d13aac2205905964c1f87593912911

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