Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2be678560344c43…

MALICIOUS

PDF

44.3 KB Created: 2020-08-07 23:36:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d7eb65efe72561ceefa1e02a46df0949 SHA-1: 42280e733c7f592ae32dfa9d8a32cc4dd50c6289 SHA-256: d2be678560344c43f687c288199227d38f07ae60ce365b99e02e0d91bf3571c1
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a critical heuristic firing for a malicious redirector link to 'ttraff.ru'. Another critical heuristic indicates a PDF link farm, suggesting SEO manipulation or a large-scale distribution effort. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of malicious links and the link farm heuristic point towards a delivery mechanism designed to redirect users to harmful content.

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=amoksisilin+adalah+pdf In PDF document text
    • http://files.texasdispro.com/uploads/1/3/0/8/130874526/17c27b0b5.pdfIn PDF document text
    • http://files.masdo.org/uploads/1/3/2/8/132815123/mafokis.pdfIn PDF document text
    • http://files.widghr.org/uploads/1/3/1/0/131071114/gawibadenot_miwijevu_wunon_lejodipoxadis.pdfIn PDF document text
    • http://files.countryminds.com/uploads/1/3/1/4/131437601/barumogepedok_tuzawetadowip_tebibipe_wubixafim.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/1/0427/4946/0636/files/28398406560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/kedexabakifivixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8444/5864/files/bosonekegoriruvakogow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0673/8079/files/metegijixakig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3565/5335/files/behavioral_approach_in_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9432/7975/files/zirezedijixemewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6960/9886/files/hp_laserjet_1320n_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6427/9718/files/64332048966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/85246182962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5156/5724/files/a_concise_introduction_to_pure_mathematics_solutions_manual.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_off0000704c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x704C 5236 bytes
SHA-256: 5bb204ddae48871c82bb9a76357ebb55076a151a75a8a4c940c6f8dfcaa911ec
font_01_sfnt_off000081f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81F9 10188 bytes
SHA-256: 6cd7706ba1793974f5327ed9428bdc20fb624e382cf63c0e8da84a45c1860ee1

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