Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb7a455069f7e932…

MALICIOUS

PDF

43.6 KB Created: 2020-08-10 10:48:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 018a9ee1b8be20362ddbb03799e82555 SHA-1: 33cd2d869c46c616905a8df048113f9e2a05cc0d SHA-256: bb7a455069f7e9324d9b9617c897222ee6f1ed47b8a2c65e8148a753425cf0f8
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'best self journal pdf'. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content. No scripts were extracted from this sample.

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=best+self+journal+pdf In PDF document text
    • http://files.thehistorianinthegarden.com/uploads/1/3/0/9/130969966/nedexo.pdfIn PDF document text
    • http://files.indipix.co.in/uploads/1/3/2/6/132681368/suzepemolaluzi_zomiguwop.pdfIn PDF document text
    • http://sitom.fredtoke.org/uploads/1/3/0/8/130814328/387776.pdfIn PDF document text
    • http://vuribopo.press1magazine.com/uploads/1/3/2/8/132814930/5699773.pdfIn PDF document text
    • http://files.gnomiesworld.com/uploads/1/3/1/3/131381066/756259.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/1/0433/5511/1589/files/53987618249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0440/9494/files/anatomy_and_physiology_2_final_exam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/jiwukigofexekibisazef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/tutorial_hibernate_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sakumuxapiwitisozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5712/7336/files/way_of_the_cobalt_soul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lonub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/69970922393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0549/files/granblue_unite_and_fight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2387/5746/files/bobinage_transformateur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/wobemun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9735/0554/files/kipufowuxipikej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5022/8119/files/67446461918.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_off00006e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E10 5160 bytes
SHA-256: 7f5bbbf8c0cffc6dbc44e482bae4c8212b575af87bb7e5091c9432ca3bbcec41
font_01_sfnt_off00007fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB1 9900 bytes
SHA-256: a10c5f00f2d160e2bd2c3a5b7ba77d16d8a470d05b09e36d55a11368c19fe75c

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