Malicious PDF — malware analysis report

Static analysis result for SHA-256 57ef0bf80222f4fd…

MALICIOUS

PDF

47.4 KB Created: 2020-08-07 10:24:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e107e02303127e67938785190e4329a SHA-1: f3e1d8d7b061343e15620615cb62dfbda4a5d528 SHA-256: 57ef0bf80222f4fd596694d2cbee87118f73e4b4869e33b666a45e560f9e75ec
162 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains the text 'Alternity player's handbook pdf download' and the malicious URL, suggesting a lure to download a fake PDF. The presence of numerous links and the redirector indicates a link farm or SEO poisoning technique to distribute malicious content.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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/wb?keyword=alternity%20player In PDF document text
    • http://files.booksyoucantrust.com/uploads/1/3/1/4/131452840/wotarigaladugog_milonikobul_mosulosaburavux_zumelafoto.pdfIn PDF document text
    • http://files.luisarciniega.org/uploads/1/3/0/8/130813427/giwuna.pdfIn PDF document text
    • http://kabeje.ancientwavestudios.com/uploads/1/3/0/7/130776257/84290.pdfIn PDF document text
    • http://files.canadianculinaryinstitute.ca/uploads/1/3/1/3/131398406/76cbb0cde.pdfIn PDF document text
    • http://files.aniareynolds.com/uploads/1/3/2/8/132816042/97e76524110858.pdfIn PDF document text
    • https://ttraff.cc/wb?keyword=alternity%20player's%20handbook%20pdf%20downloadIn 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/1/0431/8537/3333/files/76522476404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/69440686583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8855/9780/files/70277414398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6877/4807/files/70191106542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0722/1658/files/wisepalenijufigakisosel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8510/3258/files/43484671151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2873/4367/files/kalender_2020_bw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9708/7390/files/chemistry_test_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5085/files/70715088504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3896/4903/files/xixemaxujazofanarikuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/97716097399.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 3

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_off00006bc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC8 5336 bytes
SHA-256: 33efa217833940434c324857b6658831ed7eb0813c195a7816f0d619c2b7af19
font_01_sfnt_off00007dea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DEA 10584 bytes
SHA-256: 108bf3389279eeaebc87c50d1ba88063183af85ea6dd0bf03dd6aac8eb0e4db5
font_02_sfnt_off0000a224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA224 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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