Malicious PDF — malware analysis report

Static analysis result for SHA-256 09200bbf6f0f7f75…

MALICIOUS

PDF

46.4 KB Created: 2020-08-08 09:20:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3cbf31cea1c011b100720b754b0acd1a SHA-1: 9277e12be6884b34b28fc335bfef783a2c072a6c SHA-256: 09200bbf6f0f7f75837ad9c2613221da9c9221073ca9148d79bc435267eb817e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body and heuristics indicate a lure related to an 'oci application form', suggesting a phishing attempt. The presence of a large number of external links, including a 'link farm', further supports the malicious intent of directing users to potentially harmful sites.

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.com/pify?keyword=oci+application+form+pdf+malaysia In PDF document text
    • http://files.sparrowhillinn.com/uploads/1/3/1/4/131408572/lubuler_nigilivuzilep_zilolowove_ruwinijejigadas.pdfIn PDF document text
    • http://files.kerrysiggins.com/uploads/1/3/0/8/130874090/kadiwazurixu-dofiluziwojizer-ninekexi.pdfIn PDF document text
    • http://files.mikemythphotography.com/uploads/1/3/0/7/130739457/sawisovefipi.pdfIn PDF document text
    • http://files.thetimebetweenis.org/uploads/1/3/2/6/132696113/lepot.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/1/0431/0306/0128/files/8th_grade_math_practice_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6809/6661/files/44801906245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5793/7561/files/regudusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3702/3641/files/john_deere_185_hydro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9685/1103/files/vijawepipuwetunawewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6277/2380/files/61406899127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4151/9776/files/acft_workout_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6423/7992/files/xenevuvevako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2329/2822/files/51748572194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0077/2246/files/29169350703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8100/6244/files/anterior_triangle_of_the_neck.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6981/7511/files/57596442540.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_off00006c5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C5C 5432 bytes
SHA-256: 06fdce07efa02b0bbc98a783251d6aa13c078a2956a945ea859898052e17d7eb
font_01_sfnt_off00007ec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC8 14352 bytes
SHA-256: cefab0887253678d5707c426614a4d8f5df6b4dfb7e062a39fcae16cddffd1c3