Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bd1931fdd3c2604…

MALICIOUS

PDF

40.5 KB Created: 2020-08-12 23:29:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5888231bfb8164318f046044182b0e2b SHA-1: 2f833576fb68587912cdb3f1d77409a6e975a7ad SHA-256: 2bd1931fdd3c2604bc0483d44dcb33a6793b54761e58634a51aa44454aad3470
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the malicious redirector. The file is likely a downloader or phishing lure.

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=partnership+accounts+pdf+icai In PDF document text
    • http://vavopemow.centerstageboutiquetx.com/uploads/1/3/2/6/132680813/4725061.pdfIn PDF document text
    • http://files.whatsoninhoniton.com/uploads/1/3/1/3/131383045/aa7ad31.pdfIn PDF document text
    • http://files.laurelweldon.com/uploads/1/3/1/6/131636758/e870cef856368d2.pdfIn PDF document text
    • http://jutenak.carpediem191.com/uploads/1/3/1/3/131398294/pafamiz_tomukig.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/1/0433/4095/5803/files/22645684493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4739/8050/files/dejafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/47801013583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8706/0378/files/propiedades_fisicas_de_los_metales_alcalinos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/lewebeterunezoroz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/46338727975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1482/3844/files/nejagemexuzobax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7981/8661/files/bibopozonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1671/5429/files/mamejemawufuvagafaseke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7232/3737/files/veburusizugilajunipeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5422/7871/files/anlise_morfolgica_de_frases_exerccios.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

Related samples 6

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000611f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x611F 5212 bytes
SHA-256: ecfdc291aab7d1560c1697d22a2818ec75604531fbdc5cb31bd8984a82869691
font_01_sfnt_off000072c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C8 10148 bytes
SHA-256: c1ea073aae006bb44d8dfd98d5d958ab18774ee44ec316350351cabbdfe00765

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