Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ef3916084755009…

MALICIOUS

PDF

44.5 KB Created: 2020-08-27 17:42:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3eadee6ab7f78f5fb9639884a5849fef SHA-1: f42607466a4f256bbb3291c7b476b88b48572c0e SHA-256: 7ef39160847550099f5a85be60d3b6890fee01c39a0076aa89057717813f2713
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The embedded link 'https://ttraff.cc/pify?keyword=converse+of+conditional+statement' is a known malicious redirector, likely leading to a further stage of the attack. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=converse+of+conditional+statement In PDF document text
    • http://files.greenturfkc.com/uploads/1/3/1/6/131636602/2163040.pdfIn PDF document text
    • http://rodajutu.dia-healthcare.com/uploads/1/3/0/7/130739140/gasim-tifilazuseraw-saxebasawapen-xonow.pdfIn PDF document text
    • http://files.cvillechambermusic.org/uploads/1/3/1/4/131437815/48288c65d769ef7.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/1/0429/8866/7039/files/78115122083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/adobe_flash_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7434/5365/files/winowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5591/files/28223957956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/7854135710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/44435685026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2900/3416/files/40406320315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6306/files/7051999325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2962/6013/files/61161552020.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 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_off00005acc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACC 5132 bytes
SHA-256: 8281e0f942fe02b4d1344c236e1f184087db37febb33c3fa9f46e55e13c01e1c
font_01_sfnt_off00006c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C29 10388 bytes
SHA-256: d07c1f76e34f837aa9695675f70aae4ac2148ebae2df0016e4e3260d6a6c5961
font_02_sfnt_off00008fdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FDD 16116 bytes
SHA-256: a4312956d2de9df0c56a1b14dfbdb1de6c4590aee197b61ff33824917af52ff7

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