Malicious PDF — malware analysis report

Static analysis result for SHA-256 e34ae4890cd558b2…

MALICIOUS

PDF

39.5 KB Created: 2020-08-05 05:50:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 534f476903a2c2ada5b978ff321aaeea SHA-1: 60485f81aa9521750d59195b6f9bd72f2b694185 SHA-256: e34ae4890cd558b27f157629952404338b7e0505ae3bd075dccc2819ecc4d510
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to shopify.com domains, but one critical link directs to a known malicious redirector at ttraff.com. This suggests a link farm or SEO poisoning technique used to disguise malicious activity. The document body is heavily obfuscated and contains the malicious URL, indicating an attempt to lure users to a malicious site under the guise of a 'free trade definition pdf'. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for the attack pattern.

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/pify?keyword=free+trade+definition+pdf In PDF document text
    • http://files.estherica.com/uploads/1/3/1/4/131482821/41e0797fd.pdfIn PDF document text
    • http://files.christinarjackson.com/uploads/1/3/1/4/131438142/sexiw_badavixed_nanepasif.pdfIn PDF document text
    • http://files.oregonstateinvestmentgroup.com/uploads/1/3/1/4/131407051/fupekivujiraxarasado.pdfIn PDF document text
    • http://files.sheilasauvageau.com/uploads/1/3/0/7/130739542/wipof_sanuren.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/1/0431/2186/8960/files/44765655307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977314479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6678/3899/files/gibugorewuvabade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3595/9191/files/lonulibidib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8043/3302/files/72017369294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0512/4503/files/96565502141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5208/9000/files/guforidanifisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/45450596021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5131/1513/files/8224691801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6081/2190/files/r_kelly_cookies_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinavupomun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3157/6231/files/satanic_bible_full_in_malayalam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9941/4947/files/10115665511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/55156576648.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF0 4780 bytes
SHA-256: 4faeb78215e216d213bb22a7f37b0a5b1dfa262ed042934e0487d7ccbeff111f
font_01_sfnt_off00007046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7046 9616 bytes
SHA-256: 37fdebab818930ed8d6a4873e331863b4eb1326cb464d1591e9d2c7610326b67