Malicious PDF — malware analysis report

Static analysis result for SHA-256 9530d7cee5815d7a…

MALICIOUS

PDF

47.1 KB Created: 2020-08-11 15:06:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e931ddb7e39b4c56fc2e14c42095524 SHA-1: d0efe09b0b50df39426ffa9bf810c00a9b31f322 SHA-256: 9530d7cee5815d7a499dda4f04ac29cc79ea0992cfa62b88d9bc433640ed8b65
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the document links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/wb?keyword=another%20in%20the%20fire%20lyrics%20pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted from this sample.

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/wb?keyword=another%20in%20the%20fire%20lyrics%20pdf In PDF document text
    • http://files.nolagirlcustomcreations.com/uploads/1/3/1/4/131409309/38fa4.pdfIn PDF document text
    • http://files.nuimagedesigns.com/uploads/1/3/2/6/132682930/6978422.pdfIn PDF document text
    • http://tikate.suzannejefferies.com/uploads/1/3/1/4/131482995/9044109.pdfIn PDF document text
    • http://www.opentle.orgIn 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/1/0432/6470/4662/files/vocabulary_list_for_bank_po_exam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/jixufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40573574370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6335/2227/files/43365973691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/sozusakokuvotanokasej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3220/4696/files/betimogonavaliluni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2710/1853/files/76682985789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3767/7989/files/guduxuxuteberupirukemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7196/3296/files/vigujobitiporawebeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3256/8220/files/threatened_abortion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2799/6565/files/jaderifevipab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4437/9546/files/sunroof_repair_shop_near_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83759083977.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00006a4e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6A4E 12400 bytes
SHA-256: 89c60451c39dedff125ff07ebd9319e152b33441cab3a612f8f7cb94e600828e
font_00_sfnt_off000058e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58E6 5124 bytes
SHA-256: 9fffff8d0ccf0f833bb867a9be8ef548c5048fa278a38e12593213487f1e1fc5
font_02_sfnt_off00008cbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBB 10084 bytes
SHA-256: 71638e3f82cda22e1e3cfdceddf01474d107ef8f93dddf3377a56e8613d1640e