Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dbeac5e93aa974c…

MALICIOUS

PDF

96.4 KB Created: 2020-08-13 15:19:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 418421be444c029b2c726e733c34bf1c SHA-1: 8f3655e670c1d2014950d9e989f2156cc79fe717 SHA-256: 4dbeac5e93aa974c81221da4e49305a560ce4e6fa7ddca68908a31fd1664656d
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=alter+ego+2+pdf+gratuit'. This URL is likely used to redirect users to a malicious site, potentially for phishing or malware distribution. The document body, though heavily obfuscated, also contains this URL, reinforcing its role in the attack. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO manipulation tactic to obscure the malicious redirector.

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=alter+ego+2+pdf+gratuit In PDF document text
    • http://files.goldenfoodbank.ca/uploads/1/3/2/6/132681863/1428521.pdfIn PDF document text
    • http://files.canaanumc.com/uploads/1/3/1/8/131856247/1245025.pdfIn PDF document text
    • http://files.jakecastrosoccer.com/uploads/1/3/0/7/130775707/nogenonari-lozugerev-midalup.pdfIn PDF document text
    • http://files.mtzinsurance.com/uploads/1/3/1/3/131383384/b68ff563c58c344.pdfIn PDF document text
    • http://jexiwa.konajoanna.com/uploads/1/3/1/4/131453674/6339169.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/1/0433/9705/4631/files/31609337786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3939/0872/files/timex_indiglo_wr_30m_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/28710923948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6205/5332/files/biografia_de_fray_bernardino_de_sahagun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6209/1167/files/bass_guitar_jazz_scales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/uttar_kand_ramayan_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7548/5339/files/3131711101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74535711799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8542/0949/files/nuzulopev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/disney_jazz_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/kadoxuzaj.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_off00011c57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C57 5152 bytes
SHA-256: 674123306f80e4b52b9f2e3cba886a3880f3f01523a9253c810d078ad90e84d2
font_01_sfnt_off00012df3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DF3 15968 bytes
SHA-256: 8016c7021d0e28f753bb4714e256013dc62438420b2eb8c1e4203c0408299cad
font_02_sfnt_off00015ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15ED6 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e