Malicious PDF — malware analysis report

Static analysis result for SHA-256 883f7b0ecfaf7751…

MALICIOUS

PDF

57.3 KB Created: 2020-08-21 03:33:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e765aa8af08e571bfe2d9e2cb79d7f7f SHA-1: a8e68f9d768bef0129c12466c4757d53339dee3e SHA-256: 883f7b0ecfaf77511e71586dccd9c889ddf84ab25989edfc03bebee468ab5ee8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF document contains numerous links, many of which point to redirector infrastructure, specifically 'ttraff.cc'. The document body, though heavily obfuscated, appears to be a lure for a product manual, likely to trick users into clicking the malicious links. The ML classifier strongly indicates maliciousness, and the presence of redirector links suggests an attempt to lead the user to a malicious site or download.

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.cc/pify?keyword=rog+strix+x470-+i+gaming+manual In PDF document text
    • http://jojaf.theskivviesnyc.com/uploads/1/3/0/9/130969656/norobatagoxivi-zubojopilup.pdfIn PDF document text
    • http://wuvinak.laharpelibrary.com/uploads/1/3/1/6/131606758/51554c4f97e.pdfIn PDF document text
    • http://files.7625400.com/uploads/1/3/0/7/130776449/6602464.pdfIn PDF document text
    • http://files.oshamaizeherbal.com/uploads/1/3/2/7/132710797/rupikilujaden.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/1/0437/8417/5773/files/trustworthiness_in_qualitative_research_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1332/2398/files/83558473374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5733/8776/files/list_of_appointments_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7433/0517/files/5332971717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2894/5815/files/woxobakej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/ramij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/paramikido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4456/9242/files/49097107277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6709/7756/files/46930234687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1786/1277/files/birav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3716/2657/files/56878035237.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 3

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_off0000a18f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA18F 5420 bytes
SHA-256: 0c9cb65dbf176cc3ee457e59a389bcc0b86ab9f63867c130627d670d8a41db8e
font_01_sfnt_off0000b3fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3FC 10560 bytes
SHA-256: 3a3d65d8ca2a14349f5bfa5f894f68212ca76a25fe1adda453b124c179ee73c9

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