Malicious PDF — malware analysis report

Static analysis result for SHA-256 08a8fdfe7a4128cf…

MALICIOUS

PDF

41.4 KB Created: 2020-07-30 14:28:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51a552e538f552096981584d1ad273be SHA-1: 35cdd1ffed88593b55bf54b90e47416228a5f052 SHA-256: 08a8fdfe7a4128cf7bce0fcf9be7d13c2a72d9dc2aa712f20c86f2449ab4d8fe
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF is identified as an image-only lure, a common tactic for phishing. It contains multiple links pointing to redirector infrastructure, specifically 'ttraff.com', which is flagged as malicious. The document's structure and the presence of numerous external PDF links suggest an attempt to obscure the final malicious destination and potentially engage in SEO manipulation for broader reach. No scripts were extracted, but the overall pattern indicates a malicious redirector designed to lead users to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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/wb?keyword=intermediate%20accounting%20robles%20pdf In PDF document text
    • http://files.littlestarsfamilychildcare.com/uploads/1/3/1/4/131409017/daxaku.pdfIn PDF document text
    • http://files.gatheringstitches.com/uploads/1/3/0/7/130776206/9361166.pdfIn PDF document text
    • http://files.freedomfireministry09.com/uploads/1/3/0/8/130813461/4e3ff397ee5ef6.pdfIn PDF document text
    • http://files.livewellcrawfordcounty.org/uploads/1/3/1/4/131438692/48552f.pdfIn PDF document text
    • http://files.rayzimmermanauthor.com/uploads/1/3/1/3/131382673/1303474.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/1/0434/4433/8838/files/rotigajekolemagenipaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/risabakifosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/58198477167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/16927515826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3608/0288/files/12617141181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4174/3263/files/94185344536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4196/4710/files/77755894673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/berujixawajibexuxutuzogar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7596/8928/files/govemojivudefugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2601/4620/files/vuvonukitokotaxewimom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3945/6423/files/78891854736.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5449 5436 bytes
SHA-256: 09f92ef2dee7202d8a9a4e1b1301e3a964fd36b08e5b6a6bb60c5da556f482b0
font_01_sfnt_off00006692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6692 8064 bytes
SHA-256: 1144ef1fc6eaa00014c0a7bda3f1d77067fd910b32d5ddd24c025af0e37df20e
font_02_sfnt_off0000823e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x823E 16344 bytes
SHA-256: 9c47a8ecf7103172530608de19fa11afb8a035ab51042e9cb8c6809f09ebb189