Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d4a06d0007c26ed…

MALICIOUS

PDF

45.9 KB Created: 2020-08-02 12:26:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 70704f9e4f378290afe2b942a683230e SHA-1: a6a3ecb746c073db7fd052f65776ee3d10a3e0d5 SHA-256: 5d4a06d0007c26edc69b84e3298246f5c49972c2568bd45b5a9c12f6044b32fd
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com), suggesting a link farm or phishing lure. The heuristic PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK indicate a high likelihood of malicious intent, likely to trick users into downloading further malware or visiting malicious sites. The embedded URLs within the document body further support this attack pattern.

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=converting+to+vertex+form In PDF document text
    • http://files.colourismyworld.com/uploads/1/3/2/7/132710697/xazofuzales.pdfIn PDF document text
    • http://files.maryscreativespot.com/uploads/1/3/1/4/131407111/23aa5d8de7b6.pdfIn PDF document text
    • http://files.dianabradfordart.com/uploads/1/3/0/7/130775934/1304724.pdfIn PDF document text
    • http://files.gregmoffattknives.com/uploads/1/3/2/6/132696112/lujubibuwi.pdfIn PDF document text
    • http://files.familycraftsandcreations.com/uploads/1/3/0/7/130775942/1377319.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/1/0431/6551/5933/files/star_wars_the_force_unleashed_2_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/49597463334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/17688377105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0783/5293/files/41280652249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3488/5792/files/80229684025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/fonusowababufusebuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3500/7893/files/dowidifusebejilepub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/92361381102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8414/3010/files/fake_gps_location_spoofer_v4._6_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1298/7802/files/dubefuboworer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6974/files/donosanuborunovijipurago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/the_economist_january_12th_2020_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56666804065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2854/5693/files/todowapojosatokezom.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_off0000639d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639D 4608 bytes
SHA-256: 437a7f06f442cc404eb175b28a85672fad7959d19860d560b4f52f3c2febd0fd
font_01_sfnt_off00007338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7338 12816 bytes
SHA-256: f9f0176d93689ce21fc4599fe4ba56c1111e20cb082c3a2096a42c89fd3ef640
font_02_sfnt_off00009c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C2D 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34