Malicious PDF — malware analysis report

Static analysis result for SHA-256 f19509f0fc9094db…

MALICIOUS

PDF

44.5 KB Created: 2020-08-22 19:00:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: faa6edbab7199a933d7bc5ac31edf571 SHA-1: 820caa6cc52b4e5c268030691750a248173f7e8a SHA-256: f19509f0fc9094dbe0ac3b5ec08a5fda4ed1f5fe86e53277d280518b341942c3
214 Risk Score

Malware Insights

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

The PDF contains numerous links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The document body and heuristics suggest a callback phishing or tech-support scam pretext, using a 'consumer reporting agency credit dispute' lure. The primary malicious IOC is the redirector URL, which likely leads to further stages of the attack.

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) or Microsoft license-boilerplate 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=consumer+reporting+agency+credit+dispute In PDF document text
    • http://files.skincarebyjacquie.com/uploads/1/3/2/6/132681885/8378760.pdfIn PDF document text
    • http://files.dhyanahealing.com/uploads/1/3/1/4/131453005/7529557.pdfIn PDF document text
    • http://files.craiglistschryslerkcar.org/uploads/1/3/0/7/130776111/tuvasaso_janakawabobed_wavepajerenala.pdfIn PDF document text
    • http://tebik.jjsdka.org/uploads/1/3/1/4/131454178/nonesomed-zudegutonat.pdfIn PDF document text
    • http://xebevaje.rorymichelle.com/uploads/1/3/0/9/130969191/ririgamuse.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/1/0435/2756/9576/files/mefafidemumawaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/14680959053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3717/7494/files/define_economic_planning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4626/4213/files/patifibinobamezikugalim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5012/3932/files/the_armour_of_god_priscilla_shirer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3176/3864/files/vebapenidij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2017/1936/files/16156041932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0581/2633/files/working_of_automated_teller_machine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wizivudid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/21252382665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3662/2498/files/jixozitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8904/4383/files/gujigenasugap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0060/2525/files/26629570218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6406/5174/files/thiruppavai_telugu.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 7

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_off000061fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FC 5368 bytes
SHA-256: 4537cfd38d730150fbd34e30011b7c07cb8b6c6b39fe33d846b9ad588fd0ea63
font_01_sfnt_off00007429.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7429 10080 bytes
SHA-256: d68beb2cb4d3a1589f466f31ebc1ace9cb2994003384eb2fe8f7eb89d5bee966
font_02_sfnt_off00009696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9696 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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