Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eadf0bb81fc9028…

MALICIOUS

PDF

58.3 KB Created: 2020-08-08 11:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1676d08f7bbdf4ffe0534753b62ffe97 SHA-1: a8d3878af55261d0c82833a96d1e39229be74ef0 SHA-256: 1eadf0bb81fc90282abc3f9d40d498e1190189ca55e1e85ed6835848df821fe8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. This indicates the primary goal is to redirect the user to malicious content. The PDF also exhibits characteristics of a link farm, suggesting a broad phishing or SEO poisoning campaign.

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.com/pify?keyword=bachelor+of+computer+science+syllabus+pdf In PDF document text
    • http://files.cardinalfoc.com/uploads/1/3/1/3/131383791/3480668.pdfIn PDF document text
    • http://rijinido.morethansoulfood.net/uploads/1/3/1/0/131070786/zisowabopusanezer.pdfIn PDF document text
    • http://runajini.tournoidevignoles.com/uploads/1/3/2/8/132814930/1847719.pdfIn PDF document text
    • http://files.sashapezenik.com/uploads/1/3/0/8/130873921/357149.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/1/0430/9457/3205/files/68917840637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/zevewokerobufonem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9186/8313/files/bewitched_movie_cast.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/autosomal_dominant_inheritance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0714/7166/files/7870712246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5942/6968/files/adhesive_capsulitis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3192/8730/files/ripimod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18410569865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2027/1264/files/fogodinim.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 3

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_off0000975f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x975F 5568 bytes
SHA-256: 87f402e906b1ff7402d9fce4db0b7aa65cbdcdc2ba2fd8c589f35e01ac31f0b3
font_01_sfnt_off0000aa20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA20 10376 bytes
SHA-256: 55849067dd7933050f61c5f6336133bbf267bb46a651681c7f0743c5d4de8145
font_02_sfnt_off0000cd97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD97 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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