Malicious PDF — malware analysis report

Static analysis result for SHA-256 8da5a4a6fa4490da…

MALICIOUS

PDF

87.0 KB Created: 2020-08-06 20:00:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b76b8ec480782b412e97443edfbce6b2 SHA-1: a151edb4325c98242fd393cc035b0789e2ea98a0 SHA-256: 8da5a4a6fa4490dab1a29b48e5c30555f9c5dfa62e9dcede4231e40fb0be4b41
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented within the document body, disguised as a legitimate PDF download. The presence of numerous other links to Shopify domains suggests an attempt to obscure the malicious destination through a link farm. 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.com/pify?keyword=strategic+marketing+process+pdf In PDF document text
    • http://files.prairiefix.com/uploads/1/3/0/7/130776204/71b94be8ea.pdfIn PDF document text
    • http://files.group-wb.com/uploads/1/3/1/3/131380625/bogugefujowe_wejugomazu.pdfIn PDF document text
    • http://files.movieblahblah.com/uploads/1/3/0/8/130874347/rewutur.pdfIn PDF document text
    • http://files.clairescraftsonline.co.uk/uploads/1/3/1/3/131379174/b8544.pdfIn PDF document text
    • http://files.mcfieldhockey.net/uploads/1/3/1/4/131437984/d41805db.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9524/2392/files/75058739005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5108/1114/files/71092720438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4541/2245/files/rotation_matrix_3d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4950/0315/files/roxojiwiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3628/6877/files/muxazuwefinijosakefokum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1561/7182/files/navy_jobs_2020_advertisement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9869/files/43561010950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8980/3941/files/wasteland_survival_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/wobazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6821/9799/files/almost_increasing_sequence_codefights.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5132/6371/files/zumogerivererasaw.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 4

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_off0001096b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1096B 5400 bytes
SHA-256: a66f75b1e1074c2e133f2bf718437f346eebcf55b49faa75267c928dcfc905d4
font_01_sfnt_off00011ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BA3 10652 bytes
SHA-256: c381edd5d0f944d8f2f01b8fd2da6191f3c51ec13413a0c2589a4010fba9de62
font_02_sfnt_off00014003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14003 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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