Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c6a68e101f212ce…

MALICIOUS

PDF

40.2 KB Created: 2020-08-08 13:05:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 55dfea2e7ae6681cc16d2efe376ab328 SHA-1: ff65de4ea633b11981eefd6acba03c96b0b6d0c5 SHA-256: 5c6a68e101f212ce64380fa36fa2133ff24205ccce84c7c006b7d6aff451c093
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The document body itself contains a URL that leads to this redirector, suggesting a phishing or scam attempt disguised as a document download. No scripts were extracted, but the primary malicious behavior is the redirection to the identified malicious URL.

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=ankilostomiasis+adalah+pdf In PDF document text
    • http://files.hushpuppypetmassage.com/uploads/1/3/1/0/131070846/mapajabimirot-dexotezodugiz.pdfIn PDF document text
    • http://files.thepeacefulpup.com/uploads/1/3/0/7/130775286/4e6fb9ea0a140a.pdfIn PDF document text
    • http://sidor.athensorchestras.com/uploads/1/3/1/3/131398455/f333f5eca.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/1/0434/8523/3318/files/great_is_thy_faithfulness_hymn_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93515438816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6915/3181/files/fogipuruti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7614883084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6962/6781/files/solving_equations_algebra_2_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/32948107617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pesaveput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/36922746906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/18852845348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2252/3288/files/tanubolariguwugirawem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/jeximeloboranifufujorig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5911/8229/files/excel_find_circular_reference.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
🗂 Part of campaign: aledobandboosters.org 6 samples

Related samples 5

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_off00005f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F32 5236 bytes
SHA-256: f612896623127e243cc9f26c3a7a347fe3eff5f22a14d984d68384cf774ee5af
font_01_sfnt_off000070e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E0 10204 bytes
SHA-256: d10200c9c2e4a856e99a833236ea524ec403e9634a38b99c9c17f7007384b084

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