Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f56a73ceab0a69d…

MALICIOUS

PDF

43.6 KB Created: 2020-08-23 23:16:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c3643c4a9ce67dd8962be39f0e67d19 SHA-1: c2f307f4df447bafaadc0d28d114d6f56b409455 SHA-256: 1f56a73ceab0a69d6964d000465f1512ee67bd245aea6fdeb7c1d6e48898390d
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to potentially malicious redirectors or benign-looking files hosted on platforms like Shopify. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a link to 'ttraff.com', indicating a malicious redirector. The document body, though heavily obfuscated, contains the same suspicious URLs, suggesting an attempt to disguise malicious content within a seemingly normal document. No scripts were extracted, but the sheer volume of external links points to a link farm or phishing attempt.

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=answer+happy+birthday+facebook In PDF document text
    • http://vuwed.jmswoodwork.com/uploads/1/3/1/3/131379246/49ec902b.pdfIn PDF document text
    • http://gotilo.quackquackcolorado.com/uploads/1/3/0/8/130874118/0e2d5b50cf0473.pdfIn PDF document text
    • http://zokelele.cornerstone-civil.com/uploads/1/3/1/4/131453134/83585.pdfIn PDF document text
    • http://konim.sjyibius.org/uploads/1/3/2/8/132814930/gaxinokomekitus.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/1/0434/8100/6244/files/witcher_adventure_game_android_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4266/8698/files/loluwepoxeluwubefawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7812/2649/files/g._n._m_nursing_admission_form_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0086/3643/files/sotenizulidozobago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/wowefefasokurop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/tefojumune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2897/0652/files/deadly_pressure_points_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0670/9159/files/use_of_gis_in_spatial_data_analysis_and_modelling.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5068/3816/files/mopebutukofed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7447/7473/files/37549899153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/33276257257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rofan.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 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
font_00_sfnt_off00006bba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBA 5600 bytes
SHA-256: 17ccccd89d13dff7e56d00166d58f1cf5b94de7f5592d00b78e99cdb646c6752
font_01_sfnt_off00007ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC2 10076 bytes
SHA-256: 0bdb6bf081c4f0ef32f6a796a5cf24690189556dfd6f6d327ed5eb6d0d67ea3b

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