Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b396402dd9bf567…

MALICIOUS

PDF

38.7 KB Created: 2020-08-11 08:46:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 936d8d54c3f3a266cee9d3b65b80061c SHA-1: b7ad864bad5df30d65746fd088bcd00bbe3a32c0 SHA-256: 1b396402dd9bf5670696068806d6e1cbe7462016622810a40f945e9c65107d39
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=jurnal+internasional+akuntansi+manajemen+pdf, suggesting a lure to download a file. The presence of numerous links to Shopify domains, some marked as benign, alongside unknown and potentially malicious domains, indicates a sophisticated link farm designed to obscure the ultimate malicious destination.

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.ru/pify?keyword=jurnal+internasional+akuntansi+manajemen+pdf In PDF document text
    • http://setafi.indianlakestables.com/uploads/1/3/2/7/132712207/gizadobogugilutoto.pdfIn PDF document text
    • http://files.biophysical-ecology.com/uploads/1/3/1/4/131406356/xivut_girusidusowele_finusagon.pdfIn PDF document text
    • http://lezibexu.larcomair.com/uploads/1/3/0/8/130874474/8527518.pdfIn PDF document text
    • http://files.yellowstoneartboutique.co.uk/uploads/1/3/2/7/132740541/914458.pdfIn PDF document text
    • http://files.marthaclaytonlinguist.com/uploads/1/3/2/6/132681516/959ea73ae1f2c.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/1/0431/2835/7020/files/mac_address_prefixes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2127/9132/files/baldwin_giovanni_s_room.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/44783745069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8275/2935/files/tezavivilagegenopomebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6348/4315/files/66324806212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1401/9496/files/49003912184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5806/0703/files/e2_80_9chirschtalc_e2_80_9d_cream.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5752/6437/files/the_beatles_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7202/7814/files/attachment_theory_handout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/jisufukuguvub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/38182608207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2745/6419/files/75318610740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/nitowaromisiboniki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/sri_venkateswara_suprabhatam_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9658/1020/files/pamagomuxafavalokobo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D3D 5196 bytes
SHA-256: 02217703ca562c0dabc811035005437fa1d6614ff51f7fcc888756081dfd4d4a
font_01_sfnt_off00005ed0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED0 9496 bytes
SHA-256: 9a06cbba39683ba5d2055f58088a2ba4996568259b3689e0ce6d1234cd606c1a
font_02_sfnt_off00007f1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1E 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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