Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cc60038dd008150…

MALICIOUS

PDF

53.3 KB Created: 2020-08-15 06:53:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6220d08f39dc23f679bc10ff599f533f SHA-1: 7d18b76c12ca95da93b0e38f896944e63b41bc2b SHA-256: 4cc60038dd008150969b073c042d6a591ff504306e32d32fd8072dafa95d684a
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used for SEO poisoning or to direct users to malicious sites. One of the primary links, 'https://ttraff.ru/pify?keyword=baroness+mask+sheet+pantip', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous PDF links suggests an attempt to distribute or obscure the final malicious destination.

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=baroness+mask+sheet+pantip In PDF document text
    • http://tekeru.westmichiganwinejazz.com/uploads/1/3/1/3/131380284/zenebo.pdfIn PDF document text
    • http://files.nerdwizardartist.com/uploads/1/3/1/4/131409755/jabugavewudexisufive.pdfIn PDF document text
    • http://files.devotedtotheking.org/uploads/1/3/0/8/130814466/456572.pdfIn PDF document text
    • http://files.bridgescounselingservices.com/uploads/1/3/0/8/130874125/3121761.pdfIn PDF document text
    • http://files.megaworldatmakati.com/uploads/1/3/1/3/131398367/kerab.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/1/0435/4742/6975/files/49207640117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4014/4534/files/gepidar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0549/9803/files/41320986662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9938/1157/files/91279285115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0118/3397/files/64577993735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9869/3022/files/database_systems_an_application_oriented_approach.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/guxereputa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6170/5890/files/37210586448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7850/6909/files/zelujupedobizope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/2631606504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6777/6919/files/16879560177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/paris_cat_battle_cats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1303/6439/files/verokodu.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA7 5140 bytes
SHA-256: b08ff5ce2396c1248fd4dd61a4ae5ae8d94808173b54dbf45b29536286be8d61
font_01_sfnt_off00008df4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF4 10636 bytes
SHA-256: 36e414ccce13ce6b5b43fe4b850303b123476fe73ce08958a4bf76c266161cba
font_02_sfnt_off0000b28a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB28A 16312 bytes
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15