Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad421b975a9687c…

MALICIOUS

PDF

44.9 KB Created: 2020-08-27 23:01:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1e5b399e5c9d490e9a7a1753b3a4e16 SHA-1: 0c021cf14388a6461403b99ad2a7bff4e8bfacba SHA-256: fad421b975a9687c0b620c611f4d32b9d78421f5a8d0cc8309ddff330621e4ec
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the malicious URL and references to movie streaming, suggesting a lure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the primary URL leads to known malicious infrastructure.

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=my+stupid+boss+full+movie+watch+online+free In PDF document text
    • http://noranu.humanitiesnd.org/uploads/1/3/0/7/130739456/7152380.pdfIn PDF document text
    • http://files.southeastfinancialcenter.com/uploads/1/3/0/7/130740530/pikiwizibisu-wedasuvuvu.pdfIn PDF document text
    • http://files.culturalartnetwork.org/uploads/1/3/1/4/131437885/6dd46.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9392/1685/files/briggs_and_stratton_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4823/9257/files/sawogimizomuges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2613/files/xuzuzijefusufus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/netflix_app_mac_os.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/bujugujebumajedasoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/89491526046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3095/4655/files/the_testaments_free_ebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/86942122379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0311/7721/files/40366205266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/6227331839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9235/2928/files/nazikejevetibelura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/nilob.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000613f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613F 5676 bytes
SHA-256: 03bceaafead2296a50e96561c93e16fc05f0a4159beb4b21bfdbf2b5c434d8ac
font_01_sfnt_off00007475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7475 10420 bytes
SHA-256: d89dcb4f6ddedf3045d5b3aed792461068afa5b9692cdfe43fbfc9f77401f499
font_02_sfnt_off0000982f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x982F 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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