Malicious PDF — malware analysis report

Static analysis result for SHA-256 94a487fee75e61fa…

MALICIOUS

PDF

37.6 KB Created: 2020-08-23 00:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9640e0b0f04425208b2f9e3a99793882 SHA-1: e7869e41334fc34d4266de2e90d6f3718f7ad3e1 SHA-256: 94a487fee75e61fa4f1f14046b134cf47e540d10be021368eca0b06ddfd7693e
214 Risk Score

Malware Insights

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

The PDF contains a link farm with a critical redirector link to traff.com, indicating a malicious redirection attempt. Additionally, the document body contains text and embedded URLs that suggest a callback phishing or tech-support scam pretext. The presence of multiple PDF links, including one to a known malicious redirector, strongly suggests an attempt to lead the user to a malicious site for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=l298+datasheet+st In PDF document text
    • http://files.curiouskidspreschoolprogram.com/uploads/1/3/1/3/131379820/posipuxivima.pdfIn PDF document text
    • http://files.2dplan-shop.com/uploads/1/3/0/8/130815277/3880550.pdfIn PDF document text
    • http://files.rkeenelaw.com/uploads/1/3/1/3/131378821/41e1f.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/1/0431/7937/6798/files/prime_number_generator_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5024/6039/files/acis_and_galatea_handel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/50787959879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/nudorakupinali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7885/2507/files/20294508846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6249/2310/files/bankruptcy_act_malaysia_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1460/9303/files/duxanaxevaruto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7335/3381/files/makutopiridodutogoxeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6475/4325/files/98419545326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5667/6510/files/nuvugababewu.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 2

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_off00005342.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5342 5208 bytes
SHA-256: 8f2154306983b496d62ac996652280bb81fd01804d8c8fb12bfd485c2eb954a5
font_01_sfnt_off000064e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E6 10832 bytes
SHA-256: a0ac03fd0e5d0e5dbf1e1f0c58fee572a6f4c4677abeff6a44ab1379a7dc55e3

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