Malicious PDF — malware analysis report

Static analysis result for SHA-256 af3334432aef2d1e…

MALICIOUS

PDF

50.5 KB Created: 2020-08-24 01:32:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3cc5375f3d11a75f9622d210f1fbc803 SHA-1: 11235d81e2161b945b9088fd3893969fbc3be045 SHA-256: af3334432aef2d1eb7acbea40b2de217ab0cc379e6b7c90619dc83f05ebb860e
234 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.com/pify?keyword=surf+report+gruissan', is flagged as a malicious redirector. This suggests the document is designed to drive traffic to malicious infrastructure, likely for phishing or malware distribution. No scripts were extracted from this sample.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=surf+report+gruissan In PDF document text
    • http://sunejivi.missouriinstituteofhypnotherapy.com/uploads/1/3/1/8/131871674/1423707.pdfIn PDF document text
    • http://files.upygeo.com/uploads/1/3/1/4/131407144/5de93.pdfIn PDF document text
    • http://files.sommerranchbordercollies.com/uploads/1/3/0/7/130776509/vukafoxitodex-novojigu-nagig.pdfIn PDF document text
    • http://files.ccsoa.net/uploads/1/3/2/6/132681749/munapapodusel-wetaxuva-nizunodoju-lisigiwotadi.pdfIn PDF document text
    • http://tifega.uuhk.org/uploads/1/3/0/9/130969723/gikabafivobaf.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/1/0434/3575/3639/files/55432770484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1347/8312/files/76302412814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/dojusemikis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6197/6994/files/agastya_samhita_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96258555683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8374/9781/files/poniwewenuloxabilex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5038/5051/files/jadorofirinibiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3062/3894/files/84500775399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4508/5606/files/rt-_6_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6575/files/nuzenakinazisazudaxew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2386/5768/files/auditing_and_investigation_ican.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7461/files/92756397588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2027/1259/files/wexezur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/calendario_agricultura_biodinmico_2020.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8312 5140 bytes
SHA-256: da168a359a10398b597031615395d6234e3fac53f867c57022cace900d69d725
font_01_sfnt_off000094a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94A2 12680 bytes
SHA-256: 28e3536d3bf2209dc86c6c0bbdb191043811dbaa6e50f8e53eeeaf7cc86f890a