Malicious PDF — malware analysis report

Static analysis result for SHA-256 d865d74135bb98a3…

MALICIOUS

PDF

42.6 KB Created: 2020-09-13 19:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec571a2c6c3e30cd6cd86812912af65b SHA-1: e03544bde1df5e035bf097a4f1d20ea60fc198c1 SHA-256: d865d74135bb98a3d49dedfc7b1bd4fdb3ea7cf44c5c5a49725127264815e648
194 Risk Score

Malware Insights

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

The PDF document contains a prominent link that, when clicked, redirects to a URL offering a "criminal case hack apk latest version". This indicates a social engineering attack aimed at tricking users into downloading potentially malicious software. The PDF also contains a large number of external links, characteristic of a link farm, further supporting the malicious intent.

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.link/wix?keyword=criminal+case+hack+apk+latest+version In PDF document text
    • http://files.nicelawoffice.com/uploads/1/3/0/8/130814129/950cb0986f126.pdfIn PDF document text
    • http://files.hkcofc.com/uploads/1/3/2/6/132683111/lobojevaresale_jojolurirukekof_nunaduwarutare_rulilik.pdfIn PDF document text
    • http://files.eng.danirojasmora.org/uploads/1/3/0/7/130738622/5258391.pdfIn PDF document text
    • http://files.rcaleel.com/uploads/1/3/1/4/131452783/sevelo-vokilejuviben-fufofem-fojigi.pdfIn PDF document text
    • http://riroka.trianglerefugerecovery.com/uploads/1/3/1/3/131380275/782b3ac424847.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/f7fbc8_e231943be0bb4e8daa00ff21b9a24452.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/16879a_e9dac890274b4a31a8a30aa3750aa66e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0baf77_5b7eae2968524553888ddd4c05a52489.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/39cb9d_a5997ff420254482b3a1484c7bfd37b7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e2c250_f450dce884bb403da1c50242b70e5dca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2405/files/libimurirajavuvujefad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7329/7822/files/2540067083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3359/9893/files/1192722244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/sotutunaleke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7757/4557/files/administrao_hospitalar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3087/9136/files/38981193853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3966/7877/files/lifadamudejiji.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 8

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_off000068da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68DA 5200 bytes
SHA-256: c4f3df2adbae1c32acba14f53b0f7f91e09f2b8326641acf4007c49398603434
font_01_sfnt_off00007a5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A5B 10128 bytes
SHA-256: 9caa5243dc0c73b9a21820fc23fe230f92a1ef4235df203e722db99ecc237a9a

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