Malicious PDF — malware analysis report

Static analysis result for SHA-256 083e8ec12149c492…

MALICIOUS

PDF

45.0 KB Created: 2020-08-03 13:37:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59e0ba731c8108a5e1605041498d2b79 SHA-1: 4d3cb0e72d44b042fcc6d4115bde23d92515db96 SHA-256: 083e8ec12149c49201294468effd4e62c30ed47f746d2471a2874a3137649f01
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service known for hosting malicious content. The document body itself contains the primary malicious URL, suggesting an attempt to trick users into downloading further content. The ML classifier also strongly indicated maliciousness.

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=introductory+geographic+information+systems+jensen+pdf In PDF document text
    • http://files.nevingtonwarmuseum.com/uploads/1/3/0/7/130739883/gupudukibejid.pdfIn PDF document text
    • http://files.firstclasssuccess.com/uploads/1/3/2/7/132740670/4838016.pdfIn PDF document text
    • http://files.humanitycenter4change.org/uploads/1/3/2/7/132740978/midugulebafe.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/27482348981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4930/3720/files/saxaxawesapugezakif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/bloody_mary_morning_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rodol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4021/9041/files/fios_tv_guide_arlington_va.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejukimuvili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0938/files/38304257950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1869/0458/files/vosisuviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3915/1512/files/89720088941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7271/4920/files/berserk_2016_episode_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4242/2440/files/63425171836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8906/8185/files/34406187827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/22978329064.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 7

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_off00006e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E60 5652 bytes
SHA-256: 2ba2030b6acdf1b4f3395da6bc9f40313f51c1eee0961e7ae457fcc8acce9cfd
font_01_sfnt_off00008181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8181 10220 bytes
SHA-256: 1d711a6d6642e9b4389d1a418a590c8f0cce2247e06e9499daa7f94d9988e1bc

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