Malicious PDF — malware analysis report

Static analysis result for SHA-256 7da633870665e5b0…

MALICIOUS

PDF

45.9 KB Created: 2020-08-21 00:22:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 159efe3d213b545406749c88a3d93744 SHA-1: 400487b804e8bbaf2904c526228d04921d37756a SHA-256: 7da633870665e5b07d8962f48e50b0386efb632261cb4e35c4fc10f84278fa36
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, including a redirector to 'ttraff.com' which is flagged as malicious. This suggests the document is designed to trick users into visiting malicious sites, likely for phishing or malware distribution. The presence of numerous links to various PDF files on Shopify domains indicates a link farm strategy to improve search engine ranking for malicious content.

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=cg+love+hd+video+song In PDF document text
    • http://files.sherconresort.net/uploads/1/3/1/0/131070485/fowexunalolefupad.pdfIn PDF document text
    • http://larapu.robertjcarroll.com/uploads/1/3/0/8/130813821/ab0702437a.pdfIn PDF document text
    • http://files.belluccisrl.com/uploads/1/3/0/7/130739204/nemopazisud_nejerajuxepor_toxepef_boxakekisepu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6911/1448/files/ibpsguide_free_mock_test_sbi_clerk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mubexuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0118/2370/files/9771891253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7772/9432/files/49432489840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2083/7279/files/adams_essex_calculus_a_complete_course_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0388/5206/files/84018797408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7578/7162/files/formal_wear_online_canada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/faxojowoletuvifawudisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/51187673684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0804/0853/files/gajuganiluwimupoxomepa.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC5 4744 bytes
SHA-256: 9a22af8abaf82cf333afa6543ef051ae06714786f5609bb4a94e3571022264c5
font_01_sfnt_off00006cf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF3 10388 bytes
SHA-256: 9f76fd6bc7c18a6a6f61658fe4d4c0f2679f91e39228b89508532a487dee211b
font_02_sfnt_off00009084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9084 7212 bytes
SHA-256: 546e3979a1f4c9ad88d0ad04bb9a7d86a50ab55747bb4811eb47dee860e17337

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