Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae306a974a0a74b5…

MALICIOUS

PDF

48.0 KB Created: 2020-08-21 23:10:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c71ac1aba7093157d08984b490c3f27 SHA-1: 74df166f883fde10c42439ef138ce8cb4962f9f5 SHA-256: ae306a974a0a74b5f9ffba18f49e9a5611b6d102491e8b3ee17d142ad35a9fc2
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'undescended testes guidelines' and the malicious URL, suggesting a lure to a potentially harmful site. The presence of numerous external PDF links also indicates a link farm strategy.

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=undescended+testes+guidelines In PDF document text
    • http://dosivirip.familytimefishingcharters.com/uploads/1/3/1/4/131409090/d094acdebcce9.pdfIn PDF document text
    • http://files.outofthegraywa.org/uploads/1/3/0/7/130775822/f0abb910996796.pdfIn PDF document text
    • http://files.marcyearthscience.com/uploads/1/3/0/7/130738970/sefetexavevogin.pdfIn 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/1/0435/5702/7992/files/11526675581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2561/3468/files/38016474817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0550/1852/files/ansys_manual_anna_university.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7326/4030/files/blood_group_test_report_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3503/1712/files/fuduravejilalabexilewej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9254/8511/files/sikobalenera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6554/0759/files/gosazawifeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/snackbar_error_android_studio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3382/9271/files/tamilrockers_2019_telugu_movies_in_madrasrockers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/bacterial_growth_and_reproduction.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 4

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_off00006fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB9 4564 bytes
SHA-256: f3de856e289b79518d17b6e7e5bac96681749742426e63b212c9c3bf1b62e65f
font_01_sfnt_off00007f4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4F 11608 bytes
SHA-256: e7151888b6591c0765c002733ff3588aad4a4c971970818a8ad95d7518cc79a7
font_02_sfnt_off0000a512.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA512 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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