Malicious PDF — malware analysis report

Static analysis result for SHA-256 19c3d6b6ee876f47…

MALICIOUS

PDF

43.1 KB Created: 2020-08-15 22:44:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ecde6ea7ed7dd8ea130ca63b94293ba SHA-1: d2865348e29d3da5dcef1966659599e640849430 SHA-256: 19c3d6b6ee876f47f79bac7f2b1b52e5b43c090cf47cc58d95f1906de2d0834c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell 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 with a lure related to 'Android wear watch faces apk'. The file also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or redirection strategy. The primary malicious IOC is the redirector 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=android+wear+watch+faces+apk In PDF document text
    • http://files.myriversidefrenchcottage.com/uploads/1/3/1/3/131398268/4103021.pdfIn PDF document text
    • http://files.themanemonogramonline.com/uploads/1/3/0/7/130776499/dilug.pdfIn PDF document text
    • http://files.bearlakedental.com/uploads/1/3/2/6/132681342/5864819.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/1/0428/2528/5798/files/modidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2539/8945/files/50860594660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3711/1958/files/juwibufojutoralaxil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7873/8335/files/gagizuluvizidomejodup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/89827839074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3164/1767/files/clean_code_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/davabegoxulemiriwazop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6967/7474/files/ludacris_roll_out.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1128/4893/files/rebemoguri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/pasigagewuvetasanofofovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72707516801.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 6

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_off000064b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B3 5356 bytes
SHA-256: 8b7e2923587e55db334a9a19f85f27d7ad7ea01deefc0c70ca63e591acdb8611
font_01_sfnt_off000076f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F6 12768 bytes
SHA-256: e7790e4dcb84b40a11b57767d0385dee32b1371d69cfc7afe432b8f85fb8a669

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