Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1a5e7a400b5173a…

MALICIOUS

PDF

50.4 KB Created: 2020-08-09 03:36:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b13ea3b0af46e5b02e49e8020d44e3e SHA-1: 06cd020b3abe3878b6e1e3b74da865aeb1172d67 SHA-256: e1a5e7a400b5173a4088429076681e6a121241afc08d558c8401476aa6816b6b
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF link farm. The primary malicious link, 'https://ttraff.cc/pify?keyword=rubrik+penilaian+reading+aloud+pdf', suggests a redirection to potentially harmful content. The presence of numerous links, many hosted on Shopify, indicates a strategy to either inflate SEO or distribute malicious payloads through a seemingly benign document. No scripts were extracted, limiting the analysis of direct execution behavior.

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=rubrik+penilaian+reading+aloud+pdf In PDF document text
    • http://mowuzebum.bahamasteachercadets.com/uploads/1/3/1/0/131070450/fakexivumifedel.pdfIn PDF document text
    • http://files.jciitaly.org/uploads/1/3/1/4/131438639/kenizujume.pdfIn PDF document text
    • http://files.fabianwahl.de/uploads/1/3/2/6/132682022/56d157cbd2ff4c.pdfIn PDF document text
    • http://files.petesmentalhealthtravel.com/uploads/1/3/0/7/130776728/06d4fa357039288.pdfIn PDF document text
    • http://files.20thgmb.com/uploads/1/3/1/4/131406403/bibitedelase-golug-topovo-disubil.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/1/0436/1755/0499/files/wazefoval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4629/5959/files/electromagnetic_fields_wangsness_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2537/5130/files/hosts_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/galuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/61135032874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1583/9645/files/51119593610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6490/6148/files/alchemists_board_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6929/2188/files/seus_minecraft_shaders.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8453/0343/files/tigonufupojixiwisivoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0574/7108/files/99003696979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1560/1314/files/secret_service_agent_salary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/8763637694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3863/7208/files/eminem_space_bound_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/sd_tv_resolution.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000087c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C1 5240 bytes
SHA-256: c276ffb81be1a638780f261c1577cbe57722a22c30e269aa626b0015789145ee
font_01_sfnt_off000099aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99AA 10220 bytes
SHA-256: 9e1e965020fedd6d53e2d6d826b79ba9f9f690623ec687d02ccdf927538e21d8