Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b4e6d0b6c394f2…

MALICIOUS

PDF

45.2 KB Created: 2020-08-11 00:21:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 029144c52ed924fef17024b66a4ddb20 SHA-1: 422c3e05983903b9193a1f6b795e1f847e004e80 SHA-256: 06b4e6d0b6c394f25b11bd2364274339b14ed94b6513528c8c8f462ffd2222d7
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector infrastructure at 'ttraff.ru'. This suggests a link farm or phishing campaign designed to funnel users to malicious sites. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs further supports this. No scripts were extracted, but the document's structure and embedded links are indicative of a social engineering attack.

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.ru/pify?keyword=descargar+acuerdos+de+paz+guatemala+pdf In PDF document text
    • http://files.esthergoldberg.net/uploads/1/3/0/7/130775084/ninirekewifa.pdfIn PDF document text
    • http://sajij.amansbistro.com/uploads/1/3/1/1/131164243/ec148f08705.pdfIn PDF document text
    • http://files.wesleytbrown.com/uploads/1/3/1/4/131438274/lapifi_wirajozo_xikalagada.pdfIn PDF document text
    • http://files.picturesqueartphotography.com/uploads/1/3/0/7/130775888/5f66e.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/1/0432/9255/7467/files/41712212800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4568/2332/files/20294142832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/80240217651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/movikulewerudazuxedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1725/4558/files/59736694993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2395/7144/files/cedar_rapids_kernels_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/revewarosuxexekadezipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8937/1029/files/bozatetatepezekemumatuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/pusisigezedidufatipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8516/files/73028890335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45484104345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1715/9335/files/67793163395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9561/files/89737891689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/mudenutekigeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7712/4774/files/92707340231.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DB 5524 bytes
SHA-256: 7d80bcbd45a5ac3109fea1e6af66104b47b1c5618350757cfc22bd35191c1c26
font_01_sfnt_off0000849a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849A 10820 bytes
SHA-256: 79922f1fae7b854bac51c0fb88fb0d70ffc481221399541dbce37e8bae3bc651