Malicious PDF — malware analysis report

Static analysis result for SHA-256 e19f19835a1c98d9…

MALICIOUS

PDF

47.9 KB Created: 2020-08-06 20:10:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2cfe28836b8408d0466ee89d50388d50 SHA-1: 55f96bc3abce2e1a39965fe6f6aa67a8ba459bc5 SHA-256: e19f19835a1c98d9ed044259ac9fdb8241f04f012b3bb46748900645e3029419
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.ru'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The presence of these links suggests an attempt to lure users to malicious sites, likely for further exploitation or phishing.

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.ru/pify?keyword=libro+mordiendo+manzanas+y+besando+sapos+pdf In PDF document text
    • http://files.finditfilms.com/uploads/1/3/1/6/131607269/ritonanid.pdfIn PDF document text
    • http://files.slickpackages.ca/uploads/1/3/0/7/130776558/kamovudatumijudepa.pdfIn PDF document text
    • http://files.hanseatic-avs.de/uploads/1/3/1/0/131071157/ludolif.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/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0252/5856/files/scert_sams_odisha_gov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7809/0901/files/kegos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zogubarekerebadopotuleju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/wexumilurapanagira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gumatuzonew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5570/9341/files/52944191568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/56207264416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/24907566890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5080/files/31145469053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9162/4097/files/86617511820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6582/files/jowofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2634/6147/files/gta_5_hacks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3638/5175/files/athens_travel_map.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 4

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_off000078d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D2 5388 bytes
SHA-256: 04e5b5c348e97d2700e0710e5a37458ab6ed3b4fdd4951c9811d5fc5aa2ace9c
font_01_sfnt_off00008b18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B18 11472 bytes
SHA-256: fb612ac331ec951d885cd609f97343dac4d66ce2c7343686a13f49964f6ea78b

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