Malicious PDF — malware analysis report

Static analysis result for SHA-256 f13556bb443e896a…

MALICIOUS

PDF

53.8 KB Created: 2020-08-20 21:56:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18502bf00951772cca3034c70104417e SHA-1: a516fa626f7149d7f1325cc6dc5aa513db313fd9 SHA-256: f13556bb443e896adc1270998f1482c06708feac03b2409fe6ca3ddf9bf0dd8f
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The document body contains numerous URLs, including a primary suspicious URL (https://ttraff.ru/pify?keyword=baba+is+you+meta+guide) which is likely part of a phishing or malware distribution scheme. The presence of a large number of embedded links suggests an attempt to overwhelm or confuse the user, or to distribute payloads through various channels.

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=baba+is+you+meta+guide In PDF document text
    • http://tawaxe.legacysportsphx.com/uploads/1/3/1/3/131384226/tijubisidotaradaf.pdfIn PDF document text
    • http://wixeliw.readingsync.com/uploads/1/3/0/9/130969742/0e8446e69ac2.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/1/0436/2685/6610/files/potor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8995/8814/files/33303099458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fezusagofetivori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/9922200253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0238/7867/files/xexevadodebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4945/0661/files/95139387435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6906/3836/files/mepebudizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/fargo_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/kptcl_notification_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3305/9479/files/prevalencia_de_la_diabetes_mellitus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2460/files/quran_with_urdu_translation_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3406/7615/files/nozigiwapatafa.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

Related samples 1

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_off000087e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87E4 3412 bytes
SHA-256: bee2a17652de55e79ca744a95f6dbe2970fa2314efdf61007cce14dc90f56b00
font_01_sfnt_off00009429.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9429 5308 bytes
SHA-256: 1eaefbbcc90c9bf0720873f1324e3edefb8f67da0be11a9299c00be54a970f1a
font_02_sfnt_off0000a629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA629 10512 bytes
SHA-256: 46ea72e2c460c46309de41e757870ab666d4ded89db4f96ce8272bc3be1c903d

Open this report in the interactive analyzer, or submit your own file for analysis.