Malicious PDF — malware analysis report

Static analysis result for SHA-256 172ff93e3b583960…

MALICIOUS

PDF

55.1 KB Created: 2020-08-22 22:26:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 588c4d38794b10c9aec73d20aabc4b1b SHA-1: 460e66eea038ddbd10e25de0fcfb9920b1623aff SHA-256: 172ff93e3b5839609d33b19642fc50cccd0688ab403a5a29d9341d7fee07dec2
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that appears to be part of a link farm for phishing or malware distribution. The document body and heuristics indicate a lure for free downloads, likely leading to malicious content. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to malicious sites for further exploitation.

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.com/pify?keyword=aparichit+2+movie+hd In PDF document text
    • http://files.measurev-mcag.com/uploads/1/3/0/8/130814967/busurazurej_dasuradiguwuzek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3904/7336/files/posupezidiwebafuvex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/40072025186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7345/4748/files/xonugomimajomevakopozozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/7710/8647/files/ielts_result_sheet_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/adobe_reader_converter_free_download_for_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0133/9304/files/banking_preparation_books_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9541/6213/files/amapiano_songs_waploaded.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4581/3413/files/vavaxegujuxenepepatav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0939/9192/files/titin_full_name.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1404/4323/files/xozugunugulubiwofewosug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2434/1400/files/harmony_hall_piano_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6146/0644/files/50316408505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2721/0144/files/25537453768.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_off0000776d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x776D 4968 bytes
SHA-256: 94ddf9297be00adf7c61d94cfb122c2d23acf28690fcea6d167a3f1416331624
font_01_sfnt_off0000884b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x884B 10504 bytes
SHA-256: a90aac179a9fc4f93c71c7d8e30976cde105b1deeace7214d8a49f2e3faba1a2
font_02_sfnt_off0000ac91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC91 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073
font_03_sfnt_off0000c159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC159 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e