Malicious PDF — malware analysis report

Static analysis result for SHA-256 a69efc3f5356907a…

MALICIOUS

PDF

38.7 KB Created: 2020-08-20 04:43:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 077f6f9e3b485968440e91e201f05387 SHA-1: 1c1220a9a7852d71abfc09fcc870a166c4a44145 SHA-256: a69efc3f5356907ab99f319e821212ba715f646518d144fa74f079a20e92daac
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

This PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, 'https://ttraff.cc/pify?keyword=activex+control++internet+explorer', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, also contains this URL, reinforcing the lure. The ML classifier 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=activex+control++internet+explorer In PDF document text
    • http://files.nancyskalkos.com/uploads/1/3/2/7/132741110/podadagob.pdfIn PDF document text
    • http://davakim.sharibatheactor.com/uploads/1/3/0/9/130969341/guwizitidupomuw.pdfIn PDF document text
    • http://files.cfhsbands.org/uploads/1/3/1/0/131069934/0943c64ba1dab3.pdfIn PDF document text
    • http://files.brianboydmotorsports.com/uploads/1/3/2/8/132814048/pixikel.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/1/0434/1448/7190/files/80073962094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1073/5780/files/50659028027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/81912079715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1142/files/36203745002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4277/3914/files/42029463235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/zobibekupat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9542/4165/files/31003003466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7231/3749/files/32300022396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3327/1191/files/95651429954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83390791822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7043/0115/files/git_bash_make_command_not_found.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 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_off00005ba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA2 4656 bytes
SHA-256: 3db5be8143cb84bec8245b0626dc9999646840737356b9df0be9e249ff894544
font_01_sfnt_off00006b8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B8A 10144 bytes
SHA-256: c14ed887e01464251d42c0e82b8c06de88ef86b765abce0fef3e2711f797f1f3

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