Malicious PDF — malware analysis report

Static analysis result for SHA-256 f012ec607824bbfd…

MALICIOUS

PDF

39.9 KB Created: 2020-08-06 05:05:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c956f5a36fb4b74c226baff1ed721940 SHA-1: b1f7d35c7088bfc14a50d7c77e6e89a592e6f531 SHA-256: f012ec607824bbfd8a9485388cc1ebed2d068b114f17b14540e0da282cd96921
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lure users into downloading potentially malicious content. The document body text and embedded URLs suggest a social engineering attempt to trick users into downloading a 'CCNA study guide PDF'. The ML classifier strongly supports the malicious verdict.

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=ccna+study+guide+pdf+download In PDF document text
    • http://vinumutik.gracehousebrunswick.org/uploads/1/3/0/8/130874493/6191304.pdfIn PDF document text
    • http://files.seedoflifeholistichealth.com/uploads/1/3/2/3/132302833/3328527.pdfIn PDF document text
    • http://files.kiddibeat.co.za/uploads/1/3/1/6/131637308/nedigomuvosopew.pdfIn PDF document text
    • http://files.lattinandsons.com/uploads/1/3/0/7/130775939/limelowimi.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/1/0435/7357/5841/files/12119899670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1490/6275/files/bapilapixapiresofujujatex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2381/1239/files/webem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/diebold_atm_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8570/8968/files/lejojajulis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/xuxuvolezuvelut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7235/4459/files/antigone_holt_mcdougal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/sunijizajutedobotim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2623/4009/files/vertical_farming_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/rikujulifunikovuwizoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8772/4704/files/rolofomogizezil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/tamemaxusowor.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
🗂 Part of campaign: kiddibeat.co.za 3 samples

Related samples 1

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_off00005dd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD5 5324 bytes
SHA-256: 9ebd1248228cf4e97ac9385e76b009b004144379eb3d9dee29d44a17668a2686
font_01_sfnt_off00007026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7026 10104 bytes
SHA-256: 7469304e8f9a12a0e5059755e458ea428b1da70c8244fe530e90463b4935f34f

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