Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc8f1714b0a32747…

MALICIOUS

PDF

249.1 KB Created: 2020-08-25 21:10:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a451de46fc845d5202a24a9c1f745a0a SHA-1: 60f049df6c7e129b6ba0bf8b4cb211e9d44d3c73 SHA-256: cc8f1714b0a32747c26b4323f1e11867b15061b32fd93a5b096efa8e8fc97bda
134 Risk Score

Malware Insights

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

The PDF contains an embedded URL that is flagged as a malicious redirector. The ML classifier also strongly indicates maliciousness. The primary malicious indicator is the redirection to the URL https://ttraff.com/pify?keyword=%25D9%2585%25D8%25B7%25D8%25B1%25D9%2582%25D8%25A9+%25D8%25A2%25D9%2584+%25D8%25B3%25D8%25AA%25D9%2588%25D9%2587%25D9%2584%25D9%2585%25D8%25A7%25D9%2586, which is likely used to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • 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.
  • 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=%25D9%2585%25D8%25B7%25D8%25B1%25D9%2582%25D8%25A9+%25D8%25A2%25D9%2584+%25D8%25B3%25D8%25AA%25D9%2588%25D9%2587%25D9%2584%25D9%2585%25D8%25A7%25D9%2586 In PDF document text
    • http://files.takingtheleadmedia.com/uploads/1/3/1/4/131407635/fc9b8902bc9197.pdfIn PDF document text
    • http://files.ruiqichen.info/uploads/1/3/1/6/131637853/92dada48.pdfIn PDF document text
    • http://files.fnaq.org/uploads/1/3/2/6/132682790/daweje.pdfIn PDF document text
    • http://files.pharmbytes.org/uploads/1/3/1/4/131437246/f0a2e0cb989f.pdfIn PDF document text
    • http://files.nikkidisney.com/uploads/1/3/1/4/131452733/3631083.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/1/0429/3702/4668/files/pudedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/39928588457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9521/2697/files/carpet_sweeper_reviews_consumer_reports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4468/4454/files/free_piano_samples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9363/8816/files/kafawunusiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1498/7669/files/98293726879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/power_converter_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7525/5961/files/litoxoturorisudatug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/9781/8015/files/ignou_assignment_2018-_19_solved.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7360/9636/files/82800561395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/dragon_age_inquisition_mage_skill_tree_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/8750/8135/files/lijefupobu.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off00039768.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x39768 35080 bytes
SHA-256: 5e5225a4f9dbd5af01f6f1e466d43ab8f843bb3dbc1799100b589f4c03c869cf
font_00_sfnt_off00034bbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34BBB 4068 bytes
SHA-256: 3e900196e372575ee1af689ac1189ef6d8c737e738b089e874f4efaa939d80c0
font_01_sfnt_off00035997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35997 18032 bytes
SHA-256: c0426cc0640fcd54446b72680577a438c40f923778126384117ebb72e9b34821
font_02_sfnt_off00037570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37570 9864 bytes
SHA-256: 358555c06ba279e885e8a2ac7e0b3e72d57b66f5565046d33ff408eb332c2a72