Malicious PDF — malware analysis report

Static analysis result for SHA-256 2036471c5f7edf1f…

MALICIOUS

PDF

54.0 KB Created: 2020-07-31 11:21:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0995e47478bb8da1abfdba91fe3080a SHA-1: e555f66017a8ac58d36ccf043c0da24c7449fd16 SHA-256: 2036471c5f7edf1f76741777cc2fed14e6ecf61542f50d7e0ef2c1bb44b3a07b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at 'ttraff.ru'. This redirector is used in conjunction with a SEO link farm strategy, aiming to drive traffic to potentially malicious content. The document body, though heavily obfuscated, contains keywords related to the embedded URL, suggesting a lure for users searching for specific documents.

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.ru/pify?keyword=seventh+day+adventist+28+fundamental+beliefs+pdf In PDF document text
    • http://files.upcyclemom.net/uploads/1/3/0/9/130969354/kiwebuxesudawe_fisenanitezota.pdfIn PDF document text
    • http://files.samanthaldoyle.com/uploads/1/3/0/7/130776847/refubas.pdfIn PDF document text
    • http://files.ruralnevadanews.com/uploads/1/3/2/7/132710780/d787f98c.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/1/0433/7270/7990/files/laruwenasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5781/4421/files/61687063322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3356/files/39838714743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4434/7802/files/sipopafokexalabedosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3861/3399/files/dowagadebidivisum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8521/7436/files/kewanemepotuboramimubeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/wonijixam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2962/6017/files/29724364681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2284/4067/files/36605500535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8850/1143/files/dudojugajowufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2020/5726/files/zexupiwamutidagos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/melavaxurewij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4840/files/vovipe.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9462 5688 bytes
SHA-256: d19c7bfbe4ca2b47b1d9e6bc42ed5a9f928c3bc3f7be887920b8a59889d4594e
font_01_sfnt_off0000a78c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA78C 10124 bytes
SHA-256: 06c7081e0265bee0e26b4d992e4b203ba11badd653313d77f5cbc1e8febdbc94

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