Malicious PDF — malware analysis report

Static analysis result for SHA-256 f623ab46aaa04423…

MALICIOUS

PDF

105.8 KB Created: 2020-07-29 11:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 414cb8170db3ad7fa307a11d09d53300 SHA-1: a3d640d6ae4910080e0cc28bb6e0dad77cc0c6ea SHA-256: f623ab46aaa044233c600fe739916476eacccaf20fa766074f0db4311c3c79d2
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. One of the primary links directs to 'ttraff.com', a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Aceromex catalogo pdf', suggesting a lure to disguise the malicious intent. The presence of a link farm further supports the attack pattern of directing users to potentially harmful sites.

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=aceromex+catalogo+pdf In PDF document text
    • http://files.cloudtopia.co.uk/uploads/1/3/1/8/131871416/mususulunog.pdfIn PDF document text
    • http://files.stifftstationgifts.com/uploads/1/3/1/8/131857308/xafokabifatavenep.pdfIn PDF document text
    • http://files.shorewoodmovingforward.com/uploads/1/3/1/4/131407709/satax.pdfIn PDF document text
    • http://files.agelesswesterncanada.com/uploads/1/3/0/7/130739883/sozebevidedutipepise.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/1/0439/2642/1672/files/nolipekawotaranufibir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5597/1480/files/9993539081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0028/0734/files/forasuwivorurivefizoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/pefofowekotibosina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8365/3527/files/xewilujowanowabivope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/54367760002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0996/6239/files/buzij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9961/1553/files/26703198966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12410546401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4994/2176/files/jabirinekid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74098669839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6480/2982/files/85656935442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7505/1415/files/64178980415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0774/5958/files/fomupisaviduvufimez.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 4

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_off000157ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x157FF 4988 bytes
SHA-256: 98a5d59873a2ffef04036cbd28f719f3e9a9bbed4f201e9c6ea7d445f1ff9e18
font_01_sfnt_off000168fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x168FA 16004 bytes
SHA-256: f90b99b4cc466f56ed3111f8ac7e7a6b2bd9a549650e2f95f6255572b30c0d8a

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