Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba00a6fabc9ff228…

MALICIOUS

PDF

56.1 KB Created: 2020-08-20 05:45:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 130bfa8d26192dd91293b9ce91ee5134 SHA-1: 28cd6af5893e56f78cd5fb7e14484d6e5bf934b5 SHA-256: ba00a6fabc9ff22899f53f2838b1712d8329977dc53e9f3afdf470e8e85ecbef
234 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=audition+next+level++guide'. The document body, though heavily obfuscated, also contains this URL, suggesting the intent is to redirect the user to malicious content. The ML classifier strongly supports the malicious verdict.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=audition+next+level++guide In PDF document text
    • http://mebetajim.bluethunderbirdwoman.com/uploads/1/3/0/7/130739892/ruwetezare.pdfIn PDF document text
    • http://files.loisbrezinskiartworks.com/uploads/1/3/1/4/131453214/b7cfb65d9d16e.pdfIn PDF document text
    • http://desupigu.retroca.com/uploads/1/3/0/7/130739892/7854976.pdfIn PDF document text
    • http://files.chehandbells.org/uploads/1/3/0/8/130874429/salimemupepukevoxof.pdfIn PDF document text
    • http://files.fordservoboretransmissionfixsolution.com/uploads/1/3/2/6/132682303/7348453.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/1/0430/7959/8229/files/43488853230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5798/files/12684234917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/kogujupexabofumew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3030/5175/files/lixuwikuxumideduku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5025/1941/files/jiwodekipetedefaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1245/4560/files/bovediwosagivelot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/departmental_accounting_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3818/6394/files/physical_development_during_adolescence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2312/2084/files/musijatoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2281/0263/files/rebanikalomenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2180/2404/files/woxebixiradaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/xamarawililaf.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D54 4624 bytes
SHA-256: 6ea77e624d65ccae75f10fe2de15a82148442e5c377597cef98bac335f2f2c49
font_01_sfnt_off0000ad2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD2C 11532 bytes
SHA-256: 3aeb9647b0e5375f7196ab05c266241706f38a2f43dbd696de33c1c2a227a39f