Malicious PDF — malware analysis report

Static analysis result for SHA-256 f653cc27fd14707f…

MALICIOUS

PDF

42.7 KB Created: 2020-08-17 08:43:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 728b7b5974e9a11199eca1527d8bd7a3 SHA-1: 246432c20d50d18fa36a175a86379de699d1fe44 SHA-256: f653cc27fd14707f74f1e552038dddcd22a658a467f3d8b3c8f7d27e7aa33334
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF documents. One URL, 'https://ttraff.ru/pify?keyword=movimiento+rectilineo+uniformemente+acelerado+definicion+fisica', is flagged as a malicious redirector. The document body contains garbled text and a repeated instance of this malicious URL, suggesting an attempt to manipulate search engine results or distribute further malicious content through these links.

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=movimiento+rectilineo+uniformemente+acelerado+definicion+fisica In PDF document text
    • http://dunawagit.rareblogger.com/uploads/1/3/1/4/131406893/mugovip.pdfIn PDF document text
    • http://poravan.vanillabeanonline.com/uploads/1/3/0/7/130740514/lujugisanitixif_dorafavebenosuk.pdfIn PDF document text
    • http://wagobinek.safegrowth.org/uploads/1/3/1/3/131383908/99f795ebb4.pdfIn PDF document text
    • http://lowafuwol.alicedmovie.com/uploads/1/3/1/0/131070450/tavidezuja.pdfIn PDF document text
    • http://files.andrewwarner.org/uploads/1/3/0/7/130775186/jaroradin.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/1/0435/6158/2755/files/xemesav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/21788160173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2813/5591/files/convert_webm_to_mp4_vlc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/encyclopedia_of_life_support_systems_eolss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/ravovaroxunogepoxumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9241/0525/files/xulunemafiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3411/5233/files/85192422290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2549/7239/files/where_to_watch_naruto_shippuden_dubbed_legally.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8197/3416/files/47585487797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/sijevabevezuxiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5438/9665/files/75236521855.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6474 5232 bytes
SHA-256: 183714c1f0a22710e2ee7f9eb92bbb1704a602d6c3b502b8f321af190929a7a9
font_01_sfnt_off00007630.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7630 11384 bytes
SHA-256: 57c78f093c082ec8bb0343ec847388a3c5cc803e8c8b9d6944f68835015fde03

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