Malicious PDF — malware analysis report

Static analysis result for SHA-256 e48ba45659f59eb1…

MALICIOUS

PDF

60.2 KB Created: 2020-08-08 08:43:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f2f4a21a07c732f85659fbe14b8eedf SHA-1: fb6f7c88602cc920effe248f42a1fdaeda5e1070 SHA-256: e48ba45659f59eb11ba7bef8a7b07b35317f2501a4324ae7a97c571f0766bd7d
194 Risk Score

Malware Insights

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

The PDF file contains embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'bookkeeping controls pdf' and includes the malicious URL. This suggests a phishing attempt to lure users to a malicious site under the guise of a financial document.

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/wb?keyword=bookkeeping%20controls%20pdf In PDF document text
    • http://files.peterbixbynhhouse.org/uploads/1/3/1/4/131453065/nijoxisigizu-jaromevofanab-tijufejewuwuxo.pdfIn PDF document text
    • http://files.centraljerseydyslexialearning.com/uploads/1/3/0/7/130740571/porunulegatapeji.pdfIn PDF document text
    • http://files.fcoca.org.uk/uploads/1/3/1/6/131606000/2210662.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/1/0438/2598/7734/files/xasuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4561/5766/files/24933999771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ruxejuvekega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1582/3772/files/gakisuzegalonaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/debak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8414/5049/files/pattern_magic_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/14595562304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4820/0342/files/iupac_nomenclature_of_inorganic_compounds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6377/0272/files/44130979380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4528/2214/files/befugotekakajigok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6520/5141/files/gidudagekidujokuwosovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4243/1395/files/86658060923.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_off0000afc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFC8 5224 bytes
SHA-256: b4b97172d200fbd8c17ff76be2d97b2a439a31ca61515c17bb030652932fef32
font_01_sfnt_off0000c1b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1B2 10124 bytes
SHA-256: 377c3f1e4c199bce67bf347966658f6cc0b1199b34a42b639dc9e7bc6b06e967

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