Malicious PDF — malware analysis report

Static analysis result for SHA-256 f05dd33964517477…

MALICIOUS

PDF

48.2 KB Created: 2020-08-23 13:39:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a39a94321fb20c8aef27f21b015fc6e9 SHA-1: 62f543d6eb9744bfc0d827f43636b6be4418e0d1 SHA-256: f05dd339645174773241bd40a11af11c39ef5f6eed011ac5e078d211de4dfaf0
192 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary malicious link directs to a known redirector infrastructure, suggesting an attempt to obscure the final malicious destination or engage in traffic distribution. No scripts were extracted, and the document body is largely unreadable binary data, making the analysis reliant on the PDF-specific heuristics and the identified URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9804

Heuristics 4

  • 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.
  • 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=ashkon+ke+leke+dhare+gana In PDF document text
    • http://files.mojopix.net/uploads/1/3/0/7/130738741/9289067.pdfIn PDF document text
    • http://files.lkonsite.com/uploads/1/3/1/1/131164364/pebalebukipuxem-zoripudawugejev-dumudadabonobe-goxime.pdfIn PDF document text
    • http://gabibaduj.petoskeynorthmenmath.com/uploads/1/3/0/8/130813528/bagedije.pdfIn PDF document text
    • http://zurof.arkansasartpottery.com/uploads/1/3/2/7/132740720/jajodigedazis-pekul.pdfIn PDF document text
    • http://files.ftmobile.com/uploads/1/3/1/4/131483108/zawitawajenofi_wevizenefofavap_zusodalogip.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/1/0431/3664/7317/files/wibubanirefapituko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9117/9160/files/62676514381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9982/4034/files/satasinunatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5797/0329/files/trumpet_solo_jazz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/9816259640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/fevowajugiziv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3017/4101/files/87975992589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3545/0774/files/vaxesoderet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9712/8088/files/habitat_for_humanity_australia_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5184/3737/files/dekiguleduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1063/7476/files/vadarosogekiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73930450062.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B06 5140 bytes
SHA-256: c0b752522af23ffc70021cfddb611ed4450f40b6ca74a9af4c8887f81e17c5d7
font_01_sfnt_off00006c68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C68 2920 bytes
SHA-256: cfb46f7a87323deb9791a43a0781ca259ca6209375eed184df6e2e3ed651f0ee
font_02_sfnt_off00007770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7770 14876 bytes
SHA-256: 71fb9f2abc3e8f9a070e11a74574dd25ee6721f39002359163682daddcc7ae53
font_03_sfnt_off0000a6a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6A4 16416 bytes
SHA-256: af6545cc2318d27ecafec356b4bc3a1ae9bf93fb34fea327676f982b27d16dce

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