Malicious PDF — malware analysis report

Static analysis result for SHA-256 570239f0d1b6ec0b…

MALICIOUS

PDF

50.4 KB Created: 2020-08-22 07:05:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b6cf592feff19dbd60c91a680bc6647d SHA-1: 9365bf0dedce7b505f1a3cb107fc4bb63a25cadc SHA-256: 570239f0d1b6ec0bc08ceb8296935ceb6225ab1b0f4e10a6da78d71ad97a9e85
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a 'pro apk unlocked' download, aiming to trick users into clicking it. The link leads to 'ttraff.cc', a known malicious redirector. The document also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious.

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.cc/pify?keyword=analyze+this+pro+apk+unlocked In PDF document text
    • http://files.belgradecommunitymarket.com/uploads/1/3/2/6/132681296/mosopesujew.pdfIn PDF document text
    • http://jirasinoj.gingerandlime-designs.com/uploads/1/3/0/9/130969633/wusalonapevedof-sipoge-fudonur.pdfIn PDF document text
    • http://xuvopifa.thehockeyprofessor.org/uploads/1/3/0/8/130874426/lijulamuzo_dakow.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/1/0446/6756/8291/files/aqa_sociology_a_level.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4744/3865/files/kakabuwoxorefuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/10351694392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6296/8991/files/caligula_by_albert_camus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7135/7596/files/movizik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2938/1791/files/16756356230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2086/1092/files/danby_ac_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/vuvagaxavesesufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0417/files/14758658947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5488/1175/files/5.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
    • 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_off00006212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6212 5248 bytes
SHA-256: f7b3896fd98eda9d3b1f52991d67a8e3f08aa3cbc5e66b8b4b303621ab7827c0
font_01_sfnt_off000073e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E6 10392 bytes
SHA-256: 61e4d68c6a4f9525bc83963cf5b1c5afbb6a427f7e7feb2f210f9f22e4219c66
font_02_sfnt_off000097bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97BB 16556 bytes
SHA-256: 0e08e92c9bb0e49d0f19526914630735aff702ea82f38ca84a85a13879de8bd7
font_03_sfnt_off0000ae1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE1B 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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