Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2db1abd9050b12…

MALICIOUS

PDF

48.5 KB Created: 2020-08-17 13:11:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56cda719a6b55767e922cea3d2baa082 SHA-1: 0dc3ade2ff8e58134fbdb60421aafbefa975aea1 SHA-256: 5c2db1abd9050b1288154453e6dc414d7cb25b08142583feb384dc1384645ae7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass of external links, many of which point to a redirector service. The document body, though heavily obfuscated, contains URLs that are likely intended to trick users into downloading malicious files by posing as resume templates. The ML classifier strongly indicates maliciousness, and the presence of redirector links confirms a malicious intent to lead users to harmful content.

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.cc/pify?keyword=best+resume+templates+google+docs In PDF document text
    • http://files.massagetherapyrelax.com/uploads/1/3/0/8/130874211/lowedixetime_difakojo.pdfIn PDF document text
    • http://files.chardoncommunityactionteam.org/uploads/1/3/1/3/131384018/pugotut-newifuniz.pdfIn PDF document text
    • http://files.minedlandrehab.com.au/uploads/1/3/2/3/132303378/xalixumanekafo.pdfIn PDF document text
    • http://files.portageresourceguide.com/uploads/1/3/1/6/131606644/8719065.pdfIn PDF document text
    • http://xikap.gesikpt.com/uploads/1/3/0/7/130740480/kepojizev.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/1/0432/4517/4939/files/aeneid_fitzgerald.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6561/4234/files/nosidexorulirukoxetug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2561/3479/files/ferotofajeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/mufemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3459/1907/files/jozefutavidoxef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6365/4040/files/advertising_strategy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/rig_veda_malayalam_translation_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1773/files/consolidated_undrained_triaxial_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/academic_performance_sample_thesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/angular_2_cli_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9524/4452/files/subenovitunavikewenogas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/wordly_wise_3000_book_11_lesson_5_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/zivotufewepubixetefexewa.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F42 5440 bytes
SHA-256: 12c86d83e17d25b4db745c55cf6c07d321d851b7c07f06f4da158299a0d5edb5
font_01_sfnt_off000091a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91A7 10140 bytes
SHA-256: bad8d3f25dad211c9993ccdb35f6feb5b595d3e2a7111a6736446634b5506605