Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe599981584d8080…

MALICIOUS

PDF

75.2 KB Created: 2020-08-19 03:51:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 952ae1022497f234bc51c5a93cfd83f8 SHA-1: bb8db316d989e7f0e34e99e5fb998b5c39fe02f5 SHA-256: fe599981584d8080f9a3a83e275ac806c4b29933adeb1b2d26e324a23ea35c20
162 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=ussr+anthem++free'. Additionally, it exhibits a PDF SEO link farm behavior, with numerous links to PDFs hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL, suggesting it's the primary lure. The file's purpose appears to be directing users to malicious sites through these embedded 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=ussr+anthem++free In PDF document text
    • http://files.claridgechang.net/uploads/1/3/0/7/130776103/5936259c60f3b15.pdfIn PDF document text
    • http://reruw.davidfugatecreations.com/uploads/1/3/1/3/131383297/tenulosabajekuf.pdfIn PDF document text
    • http://files.edward-stroh.org/uploads/1/3/0/7/130739916/41112f020a0eb60.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/1/0430/8199/0304/files/fenirufot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1080/9256/files/tinevufimonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1940/2397/files/jadug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0472/3349/files/kijofipulub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/lapotekalaseximowise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3064/1826/files/16021489014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6690/1148/files/opposite_words_in_kannada_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5450/5882/files/business_plan_contents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1717/3149/files/bulk_density_formula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5911/8229/files/94295843520.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

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ab74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB74 5284 bytes
SHA-256: 8557d536db593346a3596d985a8226d28fb3f0114c082c068690b042c96e15a8
font_01_sfnt_off0000bdc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDC0 4968 bytes
SHA-256: 15ee415dab55d308b59404663fcb13c64c08c06433b79ad96418a6c413a1fbf5
font_02_sfnt_off0000ce76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE76 15752 bytes
SHA-256: 2afb7c1a1e444bb81da4543c1c944252dfe75f14d6c6032308460d34dea9c911
font_03_sfnt_off0000ff0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF0B 19360 bytes
SHA-256: 98fffdcfead879abc10a18fa04179528fa728dbeb9ee4e0eff6948e8d6461e15

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