Malicious PDF — malware analysis report

Static analysis result for SHA-256 bccc167b9fa2088e…

MALICIOUS

PDF

43.5 KB Created: 2020-08-14 08:42:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b1f8f542bc3d80360d08221cfab0c39 SHA-1: 5cdd399430aa05ca8e01db79546c10da56edc0bf SHA-256: bccc167b9fa2088ec16af4ed5bb07752dffe5f0807a6f3ab8c05f388c664ef7b
202 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to a redirector service (ttraff.cc) known for malicious activity. The document body, though heavily obfuscated, contains text related to registration forms and urgency, suggesting a lure. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a deliberate effort to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=amstelveen+gemeente+registration+form In PDF document text
    • http://jexofow.kathleenlorenzo.com/uploads/1/3/2/7/132712615/zuwitimosa_razabudimun.pdfIn PDF document text
    • http://files.eastprospectparade.org/uploads/1/3/1/3/131383934/jebosusekep_kumixusosabura.pdfIn PDF document text
    • http://files.jabcoassocinc.com/uploads/1/3/1/0/131070846/domebefi-nifol-kitifatagilab.pdfIn PDF document text
    • http://files.love-chaos.com/uploads/1/3/0/9/130969659/xinirudazaza.pdfIn PDF document text
    • http://files.pamelaplattstudio.com/uploads/1/3/1/3/131380305/saviwazulip.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/1/0431/0692/6754/files/38990045853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0820/files/fujefumogupufajifitupuweg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8472/files/wetavifijasanenovugamigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5187/6509/files/factoring_polynomials_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5506/2948/files/42861215999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4188/1254/files/absceso_pulmonar_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rosetotirumeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6387/files/67254412419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7287/9773/files/moonglow_chabon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5798/5189/files/78850466451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1774/0199/files/23427420651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6687/4266/files/komewovud.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_off00006b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B27 5136 bytes
SHA-256: 0ee940cdb50aabf32eba880732fb47515c9f2827a6d58f64636f9947606af614
font_01_sfnt_off00007c90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C90 10744 bytes
SHA-256: 6e790833e484518c281cb66bbf6d96c74be270a3ef4b8009c9a5e3562f9da84b

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