Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6eabe6c7324254a…

MALICIOUS

PDF

44.0 KB Created: 2020-08-10 07:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 588d6f81ea6454e9f04a3945fa3889e0 SHA-1: 5c34958a87ec50840e18c032136d48f5f0a50669 SHA-256: c6eabe6c7324254ad7d69b6592946272896bb53076ec2b05a4004e4a19e25acd
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link and a link farm, indicating an attempt to direct users to malicious sites. The document body text, though heavily obfuscated, contains keywords related to accounting and includes the malicious URL. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to improve search engine ranking for malicious content or to obscure the true destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=accounting+ledger+list+pdf In PDF document text
    • http://files.cestagift.com/uploads/1/3/1/1/131163601/tezuxijolamokub_bozolugadajaso.pdfIn PDF document text
    • http://robage.homilytools.org/uploads/1/3/0/7/130775612/fujisoluw.pdfIn PDF document text
    • http://files.halltosuccess.com/uploads/1/3/1/6/131606756/sikomolesolubo_jisipugeje.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1509/2893/files/50105735012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2114/8061/files/arduino_uno_microcontroller.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1972/1115/files/vazajumoxovokaderilol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/jerifenubexigubefilasox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5185/0655/files/geometric_transformation_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/marc_fisher_le_millionnaire_tome_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7018/5879/files/mizikikilugezonab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2296/5160/files/pitid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3015/0309/files/19363846011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7659/7400/files/lidafisitojojeloxotukin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/fosunotolilovura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9833/9496/files/69845261404.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFE 4984 bytes
SHA-256: 85af1bb9bb99475b290ae4aa2573ce967181c38f4ebe7d1829179ea776fd2658
font_01_sfnt_off00006dfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFC 12056 bytes
SHA-256: 79c09cf49679176f75dfc113d4db91bc5043f265f292dc12dec32f49cfa812d0
font_02_sfnt_off00009504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9504 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c