Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b6111214e33abe7…

MALICIOUS

PDF

82.2 KB Created: 2020-08-13 07:22:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18e321ec7d165ce3dab6d923b12dc5d0 SHA-1: ee3392f996e0a0c47d5495bfa2a573cb3e2396e1 SHA-256: 5b6111214e33abe7f941cb7d248f1ba6e813f229ce52a70773caa83d03acdd55
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically identified as a redirector at 'https://ttraff.cc/pify?keyword=pdf+aminoacidos+y+proteinas'. The document's structure and link farm suggest a phishing or scam attempt, likely to lure users into downloading further malicious content or visiting compromised sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=pdf+aminoacidos+y+proteinas In PDF document text
    • http://jujop.shcgiftshopgrabngo.com/uploads/1/3/2/3/132303382/9974225.pdfIn PDF document text
    • http://files.grdroofremoval.com/uploads/1/3/0/7/130739835/2878304.pdfIn PDF document text
    • http://files.teensfaithcabot.org/uploads/1/3/2/3/132303131/lelofazavefovow_xuxoxu_tutixupatemus.pdfIn PDF document text
    • http://files.minilivestock.com/uploads/1/3/2/7/132740415/38a223c.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/1/0431/2363/8426/files/16137311424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5381/6728/files/56323261574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5810/0384/files/duzomexelopuzex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7879/4917/files/funky_town_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5167/9898/files/wind_waker_ost.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4459/2021/files/alucinaciones_olfativas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/sufijifelif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/baxomopuwigodasegenuzez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5504/7068/files/miridexogeguji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3731/9590/files/xagaxifopekuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9074/7295/files/23681242872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/78900329870.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c85b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC85B 6744 bytes
SHA-256: 0eac1552a6a0cc8d6d43e14f5c157d052ff2bf21460314f67a2c213e0a454e63
font_01_sfnt_off0000d911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD911 3636 bytes
SHA-256: 9bdc3af6ab14e90d2b25f5fd3af9e15f091efd273cea359a65dfb6e0da362349
font_02_sfnt_off0000e5fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5FB 5372 bytes
SHA-256: 6cb6d47752e40c7abfebc17b8ed3568d8c930605a21710a5b0e3b26380ff4014
font_03_sfnt_off0000f835.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF835 12788 bytes
SHA-256: c0118887fd7a76ad333196c28534630abf29833db3f4c01855c2903b2a6a65d9
font_04_sfnt_off000121db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121DB 16592 bytes
SHA-256: 54de05b9b0659ddf0df3e569ba82e0cbb066a75f00d487a9755214e99e681d09

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