Malicious PDF — malware analysis report

Static analysis result for SHA-256 d55b5fde1b994cfb…

MALICIOUS

PDF

45.1 KB Created: 2020-08-21 21:12:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cebae1d817bceacba71f2ffd3ecb8ec2 SHA-1: 12b72c20841a9f723e9df615a51d7ca669b5cd50 SHA-256: d55b5fde1b994cfbbe3e2184fe4aeacc3427406235516cfe86fd975354483cf2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=battery+report+macbook, suggesting a lure related to a 'battery report' to entice clicks. The ML classifier strongly supports the malicious nature of this PDF.

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=battery+report+macbook In PDF document text
    • http://mejad.healingstreammedia.com/uploads/1/3/1/3/131398008/5860967.pdfIn PDF document text
    • http://kuxumal.codiakacres.ca/uploads/1/3/2/6/132681579/1949138.pdfIn PDF document text
    • http://www.typoland.com/http://www.typoland.com/designers/Lukasz_Dziedzic/CopyrightIn PDF document text
    • http://www.typoland.com/In 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/1/0428/7427/3948/files/95948184297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8606/1480/files/beauty_camera_free_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4080/6811/files/zojewemonazemosavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/tifixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/40050135739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6944/8097/files/fiwawajumotikodaxosekipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/94419077604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2457/9736/files/2015305875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4575/6821/files/konekot.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 8

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_off00005d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D6F 6168 bytes
SHA-256: d841e6ee9fc5f8d88f1d94419f2a0f587508a927e8deb92e2b18ca34c352e48a
font_01_sfnt_off00006d0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0E 5224 bytes
SHA-256: ceaefb35fd824f0f5445354a0de48d50addde09e3f0a16642607e5762315c9a7
font_02_sfnt_off00007eca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECA 13024 bytes
SHA-256: 0772a7edba3ef6dda399b6c0b1fc29bc0c83e0d487adb25c3fe73a8980ea69a3

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