Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eb7b45e79201e8b…

MALICIOUS

PDF

84.8 KB Created: 2020-08-11 19:09:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: acc6e924e9507b9125a023317f6a79fa SHA-1: 8373b33e56a1e54d727ebd6f6bd054d80a5c8ff9 SHA-256: 4eb7b45e79201e8bca1226c7259067170779251906e0ccf496e1704cc88c9b8d
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wb?keyword=phpmailer%20attachment%20tcpdf%20example'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, some hosted on Shopify. The document body also contains the malicious URL and a heuristic indicates a lure to execute commands in a shell context. The combination suggests a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/wb?keyword=phpmailer%20attachment%20tcpdf%20example In PDF document text
    • http://fubepig.throughthewoods.net/uploads/1/3/1/6/131636725/deniluxaketo.pdfIn PDF document text
    • http://files.kmfathletictherapy.com/uploads/1/3/1/0/131071129/jazabulu_mitadureruv_zelafuvasesod_zokaganoropebu.pdfIn PDF document text
    • http://files.accountinglyceum.com/uploads/1/3/0/8/130813645/bujurotolaf-genopa.pdfIn PDF document text
    • http://files.artsstudentsassociation.org/uploads/1/3/0/8/130814021/zasasiletupeve.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/1/0434/6819/3952/files/wenobegowopufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/c_programming_language_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/rogue_best_in_slot_classic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6983/1323/files/adjective_phrase_worksheet_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3504/9640/files/36274300971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7054/6329/files/giwow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4146/3204/files/31343848089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2556/2791/files/bases_psicosociales_del_comportamiento_humano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6173/1743/files/mivuxoxud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9569/5265/files/2020_myanmar_census_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/28290229543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/kagenizip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0505/0008/files/34392574742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3636/0351/files/konodovamoge.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB96 4964 bytes
SHA-256: 8f4f85140d7c4a7fbb5a6a029f39659b975b97a13a90805d8cef18f8b3502a71
font_01_sfnt_off0000ec44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC44 17188 bytes
SHA-256: fe798e7f5b3427a2d38187e58a999577425ab575344f1d8247f9d258e6dc44b8
font_02_sfnt_off000121ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121CE 16176 bytes
SHA-256: 571515972335caee0a207269c24bbadeada6519823ccebd0cb96343cc03b563a
font_03_sfnt_off000136ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136EF 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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