Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ab11c231d49da7d…

MALICIOUS

PDF

35.2 KB Created: 2020-08-06 20:37:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 522ff90ac9ec28f7bc3661d18484902b SHA-1: 023f6591c2d73af359b5a0dff44d6f445081a071 SHA-256: 2ab11c231d49da7d1e6036e6743f2fe10cbd72dae58cb9be0b132515403b6c7f
194 Risk Score

Malware Insights

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

The PDF file contains a lure for "CCNA materials" and exhibits characteristics of an SEO link farm, with numerous external links. One critical heuristic identified a link to known malicious redirector infrastructure at `ttraff.com`. The document body, though heavily obfuscated, contains the primary lure and the malicious redirector URL. No scripts were extracted from this sample.

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=ccna+materials+pdf+free+download In PDF document text
    • http://files.cwnativeplantfarm.com/uploads/1/3/2/6/132681536/waverelobu_dosagisudoti_zidob.pdfIn PDF document text
    • http://files.ims-university.com/uploads/1/3/1/3/131378943/2634024.pdfIn PDF document text
    • http://files.juliaadrift.com/uploads/1/3/1/8/131871717/gotikumizikagegebut.pdfIn PDF document text
    • http://files.surggripper.com/uploads/1/3/2/7/132740965/xelafixugowuf_xetafonemoba.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/1/0430/0849/1673/files/the_dark_knight_rises_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4996/5985/files/jofufigofav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovovowegafakaroseras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/tisafojufepoxona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0715/6128/files/surah_baqarah_full_english_translation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65107231385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6359/7473/files/aieee_2020_solutions_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/10039252784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1600/9374/files/39993254565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2427/7923/files/jetiremasikijexefirome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2703/6322/files/64171875516.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_off00004bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BFC 5296 bytes
SHA-256: e53c4a212ffe2481a12977b175406fea4756d81e49b6ed98406f18e5546e3868
font_01_sfnt_off00005df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF5 10024 bytes
SHA-256: ffb168b3801df46ba2161630f59d4d54197af0853b28e04a4c62f17cb13539ba

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