Malicious PDF — malware analysis report

Static analysis result for SHA-256 276ccb8ed522d251…

MALICIOUS

PDF

42.3 KB Created: 2020-08-06 12:25:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13b1d8bf20de4841b24f2fe86ac02f5a SHA-1: 2e73c1048d673bc025c26933d93ff3883811d0b0 SHA-256: 276ccb8ed522d2516e889828341067a1852fc6d25671e7b5597a493ea2e60741
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.com, which is designed to lead users to further malicious sites. The document body text, while appearing to be about interview tips, is likely a lure to encourage clicking the embedded malicious link. The ML classifier strongly supports the malicious nature of this PDF.

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.com/pify?keyword=tell+about+yourself+in+interview+for+freshers+with+answer+pdf In PDF document text
    • http://files.perfectlyreneesposh.shop/uploads/1/3/2/6/132695492/9ea59.pdfIn PDF document text
    • http://files.mysustainabletransportation.com/uploads/1/3/1/8/131856244/rebiwav-zogopipirewu.pdfIn PDF document text
    • http://files.garfieldridgenw.com/uploads/1/3/1/3/131380944/6323330.pdfIn PDF document text
    • http://files.cubatrips.ca/uploads/1/3/0/8/130874495/4395073.pdfIn PDF document text
    • http://files.mountbiggs.school.nz/uploads/1/3/0/8/130815381/2d61c42e0.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/1/0430/4827/2023/files/bopapowoxazamuzibekujowav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0857/9993/files/ropudik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1946/4867/files/cuento_bienvenido_bob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/gezukijuxadumupedero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1715/9335/files/wuvebugefevaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/30008247109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voriwatovetizejewadodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0767/9397/files/26587806436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1813/3405/files/24850120045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0916/0862/files/97690421480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/kutafom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5876/4696/files/79146948806.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_off0000650a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650A 5472 bytes
SHA-256: e593d32bcd1a9b637ca9925b394bd8dfc54f5f9b3e61cca1810e4cc053d861c3
font_01_sfnt_off000077b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B1 10652 bytes
SHA-256: 1a607e94858d3e86b876af9060df6d582847ee975b7952a5d8b401c2a8c1676a

Open this report in the interactive analyzer, or submit your own file for analysis.