Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8180a84ee2c1d16…

MALICIOUS

PDF

44.0 KB Created: 2020-08-22 14:51:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 540c8fc77c7db300cc010b06b486674b SHA-1: f06622e9ac171a0fbf602450fea3628290b5685c SHA-256: f8180a84ee2c1d167af7c67ea5344f1154a65dba48f61147f7830f9f0a1c31c0
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a critical finding of a link to known malicious redirector infrastructure. The document body and embedded link structure suggest a phishing lure, likely attempting to trick users into downloading further malware or visiting malicious sites. The presence of a download button lure reinforces this malicious intent.

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.cc/pify?keyword=vaastav+full+movie++openload In PDF document text
    • http://files.cgcatogo.com/uploads/1/3/1/4/131453665/vexodomiwonitaluvi.pdfIn PDF document text
    • http://zotiko.columbinegallery.com/uploads/1/3/1/6/131606122/zopepuza_digusebazu_maneruxeselejus_riral.pdfIn PDF document text
    • http://files.wichitatherapy.net/uploads/1/3/1/4/131453902/616044.pdfIn PDF document text
    • http://files.atlanticartgallery.com/uploads/1/3/0/8/130873932/sagugiwe.pdfIn PDF document text
    • http://pawezave.aroundthehome.org/uploads/1/3/1/4/131453630/tusufixafimasakafu.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/1/0430/3683/5993/files/rheem_furnaces_troubleshooting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/48508891562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3001/2316/files/72881816818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8383/3249/files/15779886045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1393/9101/files/employment_news_app_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7751/6955/files/noun_adjective_agreement_spanish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/64312687182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/9475/5752/files/adobe_acrobat_pro_reader_extended.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000575d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x575D 5116 bytes
SHA-256: 5fbd797d605d0dd6c787037923f12cfc44f45d6f1b965e610209ea8bec9144c0
font_01_sfnt_off000068c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C4 10772 bytes
SHA-256: ed4940502899583812f63949cede6ec3eac03eb9470e2f9727236f48aedc8803
font_02_sfnt_off00008dd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD7 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8