Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e5d4b41c58a9a2e…

MALICIOUS

PDF

50.3 KB Created: 2020-08-16 19:57:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d8a26843a123d9ac80aab3e40875412 SHA-1: 6c5e8104d77b95f709f19d5e35bc1808e5e3e5b0 SHA-256: 8e5d4b41c58a9a2e60fc27547b4ad9d11d41b397feecd6d2e042831faccb6045
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious URL, ttraff.com, which is likely used for phishing or malware distribution. The document body and embedded links suggest a lure related to cracked software, aiming to trick users into visiting the malicious site. The presence of numerous external PDF links further indicates a link farm or SEO poisoning tactic to increase visibility.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=adobe+indesign+cs6+full+crack+sinhvienit In PDF document text
    • http://files.jjfdirect.com/uploads/1/3/1/1/131164112/98a1cbed.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/1/0431/8304/6813/files/90118485891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5567/5542/files/jigizamug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/xojiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0147/9321/files/75411562569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4494/4542/files/80913937399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5397/3657/files/statistical_function_in_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6130/5756/files/koxegifudesivuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6895/6578/files/count_number_of_days.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/74549268945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9857/0909/files/pivawuxedulumosuxul.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000518b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x518B 6832 bytes
SHA-256: 40e0ad21b19df3db216fd06b1281b08faf1616a5a4e0e4362360d049e0fe8d6c
font_01_sfnt_off000062da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DA 5572 bytes
SHA-256: a1e3503d1050ee7f96f0b2b34c9ed92ac65833541f87ccc9b4cfc235f678943e
font_02_sfnt_off000075c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C4 10136 bytes
SHA-256: 62b278d4e53e07c4a52da1147f5d3494a709666a31ae96c6389ca8b3e9f50ff1
font_03_sfnt_off00009842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9842 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501
font_04_sfnt_off0000ad70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD70 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3