Malicious PDF — malware analysis report

Static analysis result for SHA-256 00665bd3390ea4ce…

MALICIOUS

PDF

44.2 KB Created: 2020-08-25 22:20:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0b45c74eabde0e1717178f7adc25294 SHA-1: 0caf700ccec5b14ccf89d6842dffb2918e9e60cc SHA-256: 00665bd3390ea4ce8de1070ab92a0be20203dd9a1de0f72e6d67776bffcf3ffb
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URL, 'https://ttraff.com/pify?keyword=en+iyi+doktor+kim+b%25C3%25B6l%25C3%25BCm', is a known malicious redirector, likely leading to a phishing page or malware download. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=en+iyi+doktor+kim+b%25C3%25B6l%25C3%25BCm In PDF document text
    • http://pavuwiwi.mskl313.com/uploads/1/3/0/7/130776457/8689450.pdfIn PDF document text
    • http://wodosu.mthopebaptist.org/uploads/1/3/1/3/131384714/tizuno.pdfIn PDF document text
    • http://files.iamphoto.co.uk/uploads/1/3/0/9/130969241/gorenorowi.pdfIn PDF document text
    • http://kiwixef.russellwedwards.com/uploads/1/3/1/4/131408022/9ee2ec13b.pdfIn PDF document text
    • http://files.franklinvolleyball.org/uploads/1/3/0/8/130815277/8813793.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/1/0427/7259/4844/files/70832476434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8202/3061/files/poturuwuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/76218129521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58085676994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/gususizevepilamebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2926/5574/files/application_for_australian_citizenship_form_119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7514/9719/files/family_assessment_tools_family_medicine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9269/5456/files/atacand_hct_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/bending_moment_calculation_for_uniformly_distributed_load.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/41754772356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8320/9631/files/takobovorimamajorakoxofev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8492/2526/files/kalujisotodakitojig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/909040323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5405/6092/files/greg_everett_olympic_weightlifting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7710/5832/files/58693668016.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6090 3092 bytes
SHA-256: c5b6385736355184f6dd143c18ed298c8c6e588451010b8dd4c0456758b74c72
font_01_sfnt_off00006bb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB4 5104 bytes
SHA-256: 3010046e076ecd204b33bc8bb17ed9c4653f41008edc635eb3bca57d1590612a
font_02_sfnt_off00007c8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8C 11708 bytes
SHA-256: 93d0ed1f5745e736bf0ea415cf9edceff7b9ff620fbf9c95aa45fbaec61bfc5a