Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ca588c010b584b…

MALICIOUS

PDF

47.4 KB Created: 2020-08-02 22:44:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4bdcae9b32e9a72a52b05948c90933fe SHA-1: 6a8b71ba58ce0fe2cf5d57d2c466afc1b650a3a6 SHA-256: 59ca588c010b584b2642b98d76c1b0f1fcf8e1b4943a130974f0245f1813b0bd
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to external PDF files. One of these links, https://ttraff.ru/pify?keyword=skyrim+requiem+manual, is identified as a malicious redirector. The document body appears to be corrupted or obfuscated, but the presence of numerous links suggests a link farm or redirection strategy to distribute malicious content. 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.ru/pify?keyword=skyrim+requiem+manual In PDF document text
    • http://files.hattershouse.com/uploads/1/3/1/1/131164573/2523741.pdfIn PDF document text
    • http://files.winterhomeschoolconference.com/uploads/1/3/1/4/131438641/zijebadifebomi_wuzoz_rororef.pdfIn PDF document text
    • http://files.minigoldendoodlesutah.com/uploads/1/3/0/8/130814717/furolexax-luzifuji.pdfIn PDF document text
    • http://files.proedgepoolsexpress.com/uploads/1/3/0/8/130874482/a4557c4.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/1/0431/5345/7320/files/kurisavosevarevatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/wejoxepopopukunejofuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5473/4241/files/32950777938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/love_junkies_manga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2933/0077/files/72216472525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7219/8558/files/48891044250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13139855908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6504/0286/files/50119801012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9221/files/paketurududurikunudisan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/vukusamevuboga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2169/6149/files/list_sum_python.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_off00007bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF0 5048 bytes
SHA-256: 68a053405ebde0d63d5ad7052dbc2683af78d6dc52a7f98e711d877f392df70d
font_01_sfnt_off00008d13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D13 10472 bytes
SHA-256: c89a6282b268e05f4c49ca7bae332170859173496a1780bbae92161ab3252bd9

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