Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c7162db4367f2e9…

MALICIOUS

PDF

42.8 KB Created: 2020-08-21 12:28:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1fbfecc8be6873053e828a282decdc4b SHA-1: 5e6effe348c0acbe875f0bf33e3dfecdfa2f990b SHA-256: 5c7162db4367f2e95d434986e07bb9196eb0e9720f37ecfd6967e2f0c0ee5d50
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to redirector infrastructure. The primary redirector URL, 'https://ttraff.ru/pify?keyword=zojirushi+bread+machine+manual+bbcc-+x20', is flagged as malicious and associated with SEO link farms. This suggests a phishing or scam attempt, likely aiming to redirect users to malicious content or exploit kits.

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=zojirushi+bread+machine+manual+bbcc-+x20 In PDF document text
    • http://sefopibos.chinookwritingandjournaling.com/uploads/1/3/2/7/132740900/rapumegaka-nuxix-kusizetabajug-lopudoku.pdfIn PDF document text
    • http://files.fionahill.net/uploads/1/3/1/4/131437584/wufaro-fexodato-kowivukine.pdfIn PDF document text
    • http://files.emeraldbeachpizzapasta.com.au/uploads/1/3/0/9/130969358/6448757.pdfIn PDF document text
    • http://files.pursanovaaz.com/uploads/1/3/1/1/131164130/4585743.pdfIn PDF document text
    • http://files.emergingpaintinginvitational.com/uploads/1/3/1/4/131407035/3041218.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/1/0428/8957/6601/files/govamafexatotelija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45560821546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3355/9203/files/built_in_functions_in_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/padman_movie_in_tamilrockers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8764/3303/files/bedubefepizutob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7118/4794/files/sevajejitipej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5526/6457/files/3rd_grade_common_core_math_assessments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0711/5423/files/77207991592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nojigepinipefonumupitos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8253/1491/files/312794022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3940/7784/files/kusowadegexazexefufelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1520/8098/files/25765948919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2191/7598/files/21654897657.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 4

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_off0000681f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x681F 5728 bytes
SHA-256: e3382c550e6391248cc126a0ae206acbd4167c28ec35cdda31ada0b98ad54cb8
font_01_sfnt_off00007b80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B80 10136 bytes
SHA-256: 833722f3a2b7f0e411e57f2d24515e7c1e67b7feba71ea93c577e399cc68f0bc

Open this report in the interactive analyzer, or submit your own file for analysis.