Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbba3c13a47980a2…

MALICIOUS

PDF

40.0 KB Created: 2020-08-04 21:32:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57317837bd1325489b8da36e55e42938 SHA-1: 5b4da622f2313c65f502eca1df8c8b079c5f3b9f SHA-256: cbba3c13a47980a2f84adf90d9cc5c995c233670d551daef441f3131a2875ff2
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is presented to the user in a context suggesting a lure for "solid principles pdf". The file also contains a large number of embedded links, many hosted on Shopify, which is indicative of a link farm or SEO poisoning attempt to drive traffic to malicious sites. The document body is heavily obfuscated but contains the target URL.

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=solid+principles+pdf In PDF document text
    • http://files.jjjohnsonauthor.com/uploads/1/3/1/4/131437268/lotoxaboxubuw.pdfIn PDF document text
    • http://files.coachtiffkelley.com/uploads/1/3/1/4/131437291/636754e.pdfIn PDF document text
    • http://files.thesilverfantasy.com/uploads/1/3/1/3/131381518/a52cdffb553.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/1/0435/5971/4971/files/73312757912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rajijabobuzev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4954/2047/files/tuviramelijujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8506/9477/files/45183127396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3718/7493/files/voxogapeginobisagube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1673/3340/files/73521250531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6846/5053/files/9221916035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6244/1637/files/musodijetogogikubateb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/perisutufugojukofolixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2051/7537/files/78812850141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9532/6887/files/dawugowenedotazufefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0138/files/53097913014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4356/8278/files/java_queue_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2703/8359/files/30614265519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.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_off00006065.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6065 5040 bytes
SHA-256: 2d1b4608e3b2b5880c2ebfeb73db89595c3e28d243224e9c4d938637ab589c6a
font_01_sfnt_off00007197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7197 9904 bytes
SHA-256: 7b151c8aec32dbac3d70b4fd4b6b7615c11bc5c301596faf1783e015c2b121fa

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