Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b2428a17b54b684…

MALICIOUS

PDF

42.3 KB Created: 2020-08-19 03:18:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 843850b116387cdf492051e84220b4a2 SHA-1: 3280ca1a243f5b2e38cf2a9a607cb0b180d345b7 SHA-256: 6b2428a17b54b684fecb1a61e4ba135ce903b867f8136bb47c7fff49cdd9bffe
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body and heuristics indicate a lure for a 'flight simulator' download, likely a phishing or malware distribution attempt. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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=new+flight+simulator+2018+android In PDF document text
    • http://files.newburyporthort.org/uploads/1/3/1/4/131453028/mulejunavoparepugi.pdfIn PDF document text
    • http://files.sailingthetechseas.com/uploads/1/3/0/7/130776763/vorij.pdfIn PDF document text
    • http://files.colletteportis.com/uploads/1/3/2/7/132740498/4836491.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/1/0433/3164/9689/files/apsara_sadhana_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6213/0848/files/vademulunedizawuzivijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1320/9246/files/bijugixasajokojezoxuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5941/1094/files/23012780810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6359/1583/files/sabomedilutebememawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4220/9945/files/72653555287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/ubuntu_14._04_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3469/6097/files/bugoputizerobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3262/4808/files/niwepizaxebuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9078/7996/files/14627622508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4160/3239/files/egyptian_architecture_history.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2086/9019/files/alex_s_adventures_in_numberland_archive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/54028991169.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_off00006593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6593 5904 bytes
SHA-256: 555ae3a42313aae86f595d84af9d68a876d07b854b3903fc0f594df97745f695
font_01_sfnt_off0000799c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799C 10128 bytes
SHA-256: 6296cf4aa20899cf16fc340c4b2962763bfb2c717f738ce9c63dd1bacc347bbc

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