Malicious PDF — malware analysis report

Static analysis result for SHA-256 05eb8e0428b69a5f…

MALICIOUS

PDF

58.3 KB Created: 2020-07-31 17:30:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56f6c8c8f3471a19af9c0cbf3ae956b4 SHA-1: ef6093363865c3e9cd8338cee521cdfa42887fd1 SHA-256: 05eb8e0428b69a5f8b0c965624d2e3b7eef7e7a80fb9f3a264e7d2dbd750a865
202 Risk Score

Malware Insights

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

The PDF contains a lure for an iPhone giveaway, directing users to a malicious redirector URL. The presence of numerous external PDF links suggests a link farm designed to obscure the final malicious destination. The ML classifier strongly indicated maliciousness, and the document body contains the malicious URL and multiple benign-looking PDF links, likely part of the SEO spam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=iphone+10%252C+6 In PDF document text
    • http://files.crescentwaves.co.uk/uploads/1/3/1/3/131383533/vosis-zisikuta.pdfIn PDF document text
    • http://files.fearnotministries.com/uploads/1/3/1/4/131453124/begadibex.pdfIn PDF document text
    • http://files.crypto-decrypted.com/uploads/1/3/1/4/131437689/dasijajufo.pdfIn PDF document text
    • http://files.owenbloomfield.com/uploads/1/3/1/3/131381540/357843.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/1/0435/2350/6336/files/31523069713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/lafubakirofikavam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4280/6680/files/lozub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3738/2040/files/69071182606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8221/1733/files/68268336432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3164/9689/files/24903338693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4179/1895/files/lipazolebofepifaxuselug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/15294446873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0837/6482/files/86848203103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3281/3473/files/29739269605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4555/2277/files/jixamojodegoraruburip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4633/7703/files/4255393592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9506/4733/files/ditimifuxuxidowu.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_off00009e24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E24 4732 bytes
SHA-256: ed4f5433cb0ed9a4bba55bb014fd73db5d315a334c35af6853e2c7f2b3d30ebf
font_01_sfnt_off0000ae54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE54 14952 bytes
SHA-256: 980c8cebcd92b8aa19c17586b1de2518ca77cf0022c2f8f87e82970ac370fa21