Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e48da54c93c0a44…

MALICIOUS

PDF

46.3 KB Created: 2020-08-12 04:53:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d003622b0a87ac1910c34706488b230 SHA-1: dba972d6b78053622ccfb3a55ea23d0f67012f8e SHA-256: 0e48da54c93c0a44b97fe2bcd0705b6996971e5fda95a955e60fd1599871dc04
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and other URLs hosted on Shopify and custom domains, suggesting a link farm or phishing lure. 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.com/wb?keyword=join%20pdf%20files%20c# In PDF document text
    • http://files.parkpostoffice.com/uploads/1/3/1/4/131453592/3767340.pdfIn PDF document text
    • http://files.geyserlandcatclub.co.nz/uploads/1/3/1/4/131453034/gabiruremuzamef.pdfIn PDF document text
    • http://files.selplasticpallet.com/uploads/1/3/2/3/132303229/bitizugele.pdfIn PDF document text
    • http://files.mcnamaragypsies.com/uploads/1/3/1/8/131871902/5867189.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/1/0433/0687/7080/files/kawovuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8704/3496/files/soboxotamosozupebivir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/gepitilusenopekinupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1959/2103/files/jowuwabojejer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7870/3511/files/32021800453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3983/3767/files/rusonifabulexiwegejabaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3260/0985/files/95525362406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/40472155678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/10711925173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7863/8999/files/86233300856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7303/6697/files/baldur_s_gate_ee_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0383/8615/files/zalerubatakiloka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/wufupitibegenavokiw.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D6B 4832 bytes
SHA-256: 2bba545d1da81f1c9c87a9d6ff5c067b8bdcb5f91ee178e4c7bfe36520d46532
font_01_sfnt_off00006df0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF0 12656 bytes
SHA-256: 21d289b3f753674bf119b63b2c62a98482044bce760ed817688384a3d6e96121
font_02_sfnt_off000096d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96D7 16312 bytes
SHA-256: bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939