Malicious PDF — malware analysis report

Static analysis result for SHA-256 1561de78f6cfebe0…

MALICIOUS

PDF

55.4 KB Created: 2020-08-10 10:05:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d171428f116db20b84758bc16114b127 SHA-1: fc26a31c57338322e3966239f974277441eb61ee SHA-256: 1561de78f6cfebe039143122be874cb6a718a8b26aaab603bb2cfa9640688e1f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL, https://ttraff.cc/pify?keyword=types+of+emotions+list+pdf, is flagged as malicious. This indicates a phishing or scam attempt using a link farm to disguise malicious activity. No scripts were extracted, but the structure and embedded links strongly suggest a social engineering attack.

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.cc/pify?keyword=types+of+emotions+list+pdf In PDF document text
    • http://files.dianavgustafson.com/uploads/1/3/2/6/132681556/cbb2f1dfa.pdfIn PDF document text
    • http://files.walmsley.ch/uploads/1/3/1/4/131452842/8f47bce1.pdfIn PDF document text
    • http://files.briannadipilato.com/uploads/1/3/1/4/131454270/bowutijenil.pdfIn PDF document text
    • http://files.ritchierockmcbride.com/uploads/1/3/0/7/130775701/fomin.pdfIn PDF document text
    • http://files.ugsoalocal18.com/uploads/1/3/1/4/131407112/e2823e680.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/1/0429/8155/6375/files/st._augustine_city_of_god.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/xatubegafupoboruru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/669297692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6585/1542/files/80257821027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4484/7266/files/62081073509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5631/7091/files/lajevalejibikoxazodas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3004/5084/files/jusawepulumujowitabugugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/43997790842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8828/1761/files/lilarekawiloxarosolowula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/76876654695.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_off00009cb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CB8 4932 bytes
SHA-256: 0648ea4162528de3d3211c50408b471d9d47603b6cc63769dcd0aafce78401e1
font_01_sfnt_off0000ad80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD80 10352 bytes
SHA-256: a689a76d0c059a3b93b565d4a9226a96586c6c4053495e3c3ee006d5947ec275

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