Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ae1ffa43d6fde74…

MALICIOUS

PDF

59.7 KB Created: 2020-08-06 07:33:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81805271aff2118a16a23076a75885e4 SHA-1: 526a07ca8c453df978456b523238376b061f6916 SHA-256: 1ae1ffa43d6fde749572ed31e0ce06b5fefa6482d06d7fae3681338fa0061333
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=accounting+ratios+questions+pdf'. This indicates a social engineering attempt to direct the user to a potentially harmful site. The file also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting an effort to manipulate search engine results or distribute malicious content. No scripts were extracted from this sample.

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=accounting+ratios+questions+pdf In PDF document text
    • http://files.dyuddesign.com/uploads/1/3/0/8/130874566/pitiwebofirumi-vepujavojukex-fafoziwumaf.pdfIn PDF document text
    • http://files.midwifeyork.com/uploads/1/3/2/8/132814096/xodoxevi-mugiwibi-sekuvisofoke-bozubejemiren.pdfIn PDF document text
    • http://files.naplesbesthairsalon.com/uploads/1/3/1/0/131070722/acca36b19.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/1/0434/7746/7288/files/islamic_girl_baby_names_with_meaning_in_tamil_pdf_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4939/files/kojilerafifafokuvipijebor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0081/4998/files/98319154840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/tulidarapiliwexizuzefavom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6844/1254/files/91898020955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6898/0377/files/80807466299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3041/files/lafewosavogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4467/4455/files/zarexanewiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2585/7703/files/nba_2k13_cheats_ps3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8036/8796/files/budosedizikanimemeni.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000886c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x886C 5288 bytes
SHA-256: d5cdbe8612bdc9e3383df252ee42bb8209e4d4679767592a400c8556bf329ca0
font_01_sfnt_off00009a68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A68 10408 bytes
SHA-256: 30cba5548c1b780c7725fc820e64819ae5dd6c438cd3291a39e88b12840f4c2b
font_02_sfnt_off0000be04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE04 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6
font_03_sfnt_off0000d31b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD31B 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176