Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a3761babe3a3c7a…

MALICIOUS

PDF

49.9 KB Created: 2020-08-03 02:39:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 166244eaa78849e1dc061d56661c0358 SHA-1: 3e241e2c4e6c5dad37ea10fb61e6c1d982050064 SHA-256: 5a3761babe3a3c7a426131ce83628ffd9e6712a900508a902ef109609a373127
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure for a manual download. This suggests the document is designed to trick users into visiting malicious sites, likely for phishing or malware distribution.

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=honda+gcv160+manual In PDF document text
    • http://files.roseandwild.com/uploads/1/3/1/6/131636889/vozamu_runuke_jotuk.pdfIn PDF document text
    • http://kaxore.deepspaceobjects.com/uploads/1/3/1/4/131452903/9a7e098d5d1a16.pdfIn PDF document text
    • http://files.emerierosephotography.com/uploads/1/3/0/9/130969352/semusaluri.pdfIn PDF document text
    • http://files.lowcostphotobooths.co.uk/uploads/1/3/1/1/131164153/dijejumadus.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/1/0432/0228/1633/files/bapoponununojumod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7861/5189/files/fewupafaregivuwag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/68308777965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/nj_surf_report_belmar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/joxasarotoparuzarifut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7106/2684/files/51533486229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/65323628500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0582/8520/files/91053086869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/super_smash_bros_3ds_dlc_codes_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1312/7835/files/90976262734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8135/1839/files/44266938055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4390/3905/files/terapaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/14184571691.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 5

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_off00008527.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8527 5356 bytes
SHA-256: 2efa0e51fa098c73d7dcb68b7c66e3b3783c4ff4bb3bf2c8597f92815fd978b5
font_01_sfnt_off00009759.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9759 10528 bytes
SHA-256: cfafc33111824491ef7200657b0cf6dd2f60f50f9164dfcff5be842a36ca3780

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