Malicious PDF — malware analysis report

Static analysis result for SHA-256 989178a70d41c04c…

MALICIOUS

PDF

43.3 KB Created: 2020-08-01 10:46:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f18184adc77f56a5281adfd2b985f93 SHA-1: 7852f764a4cf67b55fa84c76de55616c29195843 SHA-256: 989178a70d41c04c096925f858470249350f0f2cb25e5e482bef30bd32bba247
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with critical heuristics identifying it as a link farm and a malicious redirector. One of the primary links directs to 'ttraff.cc', a known malicious redirector. The document body, though heavily obfuscated, contains the same redirector URL and references to 'cdn.shopify.com' PDF files, suggesting a lure or content delivery mechanism. The presence of numerous external links points towards a phishing or SEO poisoning attack.

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.cc/pify?keyword=ninja+gaiden+sigma+walkthru In PDF document text
    • http://files.dallaskappadelta.com/uploads/1/3/1/4/131453198/e36780e6b9.pdfIn PDF document text
    • http://files.zanyunoodles.com/uploads/1/3/0/7/130739381/sikete-wemotuta.pdfIn PDF document text
    • http://files.a4ppodcast.com/uploads/1/3/0/9/130969220/wubapirujuji.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/1/0432/0854/0324/files/vakunejun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48975286879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1370/9725/files/98387605006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0690/2950/files/26202701914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/kugesip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9868/6111/files/69700634599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5856/8097/files/jufejapewad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/xudurifuvigedemopofebexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8984/4641/files/90487020364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9380/2646/files/56626202107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9757/0980/files/65281277816.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 8

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_off00006abe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABE 5440 bytes
SHA-256: 16b7cee47b4d9620007a0b8905197fd2e1c8f61152d7906b8274eaa40e3bbaf0
font_01_sfnt_off00007d2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2C 10484 bytes
SHA-256: 9b0e5bc6f616ab354b61a421f8ac7e2c04e09fb25eb35088d18218ee132ccfb7

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