Malicious PDF — malware analysis report

Static analysis result for SHA-256 622e714b2e38bcc2…

MALICIOUS

PDF

130.3 KB Created: 2020-08-02 13:05:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 425c443d709b656253b98ee9c7962c98 SHA-1: c7572e866d135e744e348eed7dfcf91c473eee7e SHA-256: 622e714b2e38bcc2f3050f05aa834360553a964878f8bd09ce358b06a02bd6d5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, many of which are hosted on domains associated with SEO link farms and redirectors. The primary redirector URL, https://ttraff.cc/pify?keyword=engineering+economy+7th+edition+pdf, is flagged as malicious and likely serves as a lure for phishing or malware distribution. 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.cc/pify?keyword=engineering+economy+7th+edition+pdf In PDF document text
    • http://files.athenas-owl.com/uploads/1/3/1/3/131381681/2574711.pdfIn PDF document text
    • http://files.piecedoccasion.net/uploads/1/3/1/1/131163927/9c0811b562c5234.pdfIn PDF document text
    • http://files.paulalozar.net/uploads/1/3/0/7/130739318/5c15f7f.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/1/0431/8419/3697/files/90620959047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/7743984453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0213/3656/files/44117979584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/32570065476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/99661843890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0226/files/tiwozajilal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/90360043112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9817/files/kejarotigukobuwowivomope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2284/4067/files/79454515778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0234/files/jenopukamewanupur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2333/4565/files/sewevogitosibuwufojote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0010/3071/files/59238902810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/16709606189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5045/1623/files/nutajojunemu.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
🗂 Part of campaign: collettecollingeart.com 4 samples

Related samples 5

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_off0001b1b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B1B3 5288 bytes
SHA-256: ae146c3122d1b6833d1670564aa4428f55a27c7040b25eb4509b01967893fb7d
font_01_sfnt_off0001c3a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C3A9 18032 bytes
SHA-256: 0d55a4db456790b354c1621756bc9bad3cc933a5e7a6bacbba58185d814a28cd

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