Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d8ef946e8a54821…

MALICIOUS

PDF

41.6 KB Created: 2020-08-19 05:03:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea0aa18c28a9f7e000788eb01c28b4bb SHA-1: ce32534dc033abb9bdc385c08f6443f9bb3b2d2c SHA-256: 4d8ef946e8a54821a4677f0fb0efa7348330b6700821f46bddab8e4f84f04fb1
162 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This indicates a link farm strategy, likely intended to lure users to a malicious site for phishing or malware delivery. The ML classifier strongly supports the malicious nature of this PDF.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=free++template+banner+photoshop In PDF document text
    • http://files.fiftythreemorethings.com/uploads/1/3/1/1/131164460/nuzeleba-dinoluma.pdfIn PDF document text
    • http://nikeki.androscogginriverwalk.org/uploads/1/3/1/4/131483167/d8c9cae0f195a.pdfIn PDF document text
    • http://damap.twincovesmedia.com/uploads/1/3/0/7/130775732/rumadu_jufipusisi.pdfIn PDF document text
    • http://files.obpassociation.org/uploads/1/3/1/4/131437889/kujilajapub_xusijesatipa_japetu.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/1/0437/0127/2729/files/zaweziwetutexipelaviza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/addictive_personality_traits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/arcore_by_google.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4344/8990/files/42920430631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4027/6642/files/fitgirlsguide_28_day_jumpstart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3547/6636/files/25077855455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/the_beatles_white_album_mono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3197/7369/files/pawewawosixamosulimipuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/8134718304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0237/9939/files/41643923673.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000655e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655E 5156 bytes
SHA-256: 1a1f1eff47441ffd6bd60b75cd92d4a7e4d332b2cab77aa206a471fa34e2b093
font_01_sfnt_off000076aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76AA 10192 bytes
SHA-256: 62bf2e67a25fa4e4e026ea2f504b263f6409e57b8fa5a2181576005df98d8a81

Open this report in the interactive analyzer, or submit your own file for analysis.