Malicious PDF — malware analysis report

Static analysis result for SHA-256 45e91394198dda78…

MALICIOUS

PDF

62.4 KB Created: 2020-08-12 04:14:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed48a75533c589949732a50c2f41db86 SHA-1: 2483a3ef02409e8a83f12e7ab2b8f128fc2c6cc2 SHA-256: 45e91394198dda780a75398faa524bbdfc09f8ec7bac0b4b90d34e10829bcca1
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK directly points to the malicious URL, and PDF_SEO_LINK_FARM suggests a broad attempt to attract clicks. The embedded document body text, though heavily obfuscated, contains the malicious URL, reinforcing the lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=canon+eos+700d+user+manual+pdf In PDF document text
    • http://files.greenlitpete.com/uploads/1/3/2/6/132681443/savetizevaz.pdfIn PDF document text
    • http://banut.especiallyforyou1.com/uploads/1/3/1/8/131857631/zimujubev-lepegu-kopofepijifasa-gemowubawuviwux.pdfIn PDF document text
    • http://files.brianriordanmusic.com/uploads/1/3/0/7/130739651/bb75cff.pdfIn PDF document text
    • http://files.glacierpilotslegacy.com/uploads/1/3/0/7/130739147/1050539.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/1/0432/0329/7437/files/supply_chain_management_ebook_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0610/6528/files/23050734225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/78968310326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/bivedevevab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3363/2661/files/rusidiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/48555081250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/shia_islamic_books_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3860/5461/files/66866636885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/xaxifupopugifologa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9651/4461/files/18087218258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9232/7077/files/ssh_config_password.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008366.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8366 3312 bytes
SHA-256: ac66ddecb1889e99694234647e4a1e19b6174440e696c9ee44c6cb9711419273
font_01_sfnt_off00008f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F47 5312 bytes
SHA-256: 0d9c4000179c9652be9ac649d1aa6409a5fc6559b094abfa9c459be4c6f88035
font_02_sfnt_off0000a140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA140 16572 bytes
SHA-256: 5260547781831cccd6d89887af279282db3e144a3abc0bc4f569d69c6a1df449
font_03_sfnt_off0000d46c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD46C 16684 bytes
SHA-256: cc86994599ca2b6bade3ef2a24080e5ca7d0105f80c2e61a4a6d43fb5994c661