Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b251009608565e3…

MALICIOUS

PDF

135.2 KB Created: 2020-08-28 02:44:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a956976b56201ef88a6d125821e33158 SHA-1: 03180fc2314dd4db03f5dbf13759ef4dfbca9acb SHA-256: 6b251009608565e3feb5c9a8b08d10b5946416744914d29dce4392685fe743d9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the redirector, suggesting the primary purpose is to drive traffic to malicious infrastructure. The presence of a large number of external links, including to a known malicious redirector, indicates a link farm or phishing attempt.

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=trigonometric+identities+pdf In PDF document text
    • http://files.playwithfireproductions.com/uploads/1/3/2/7/132740327/9598114.pdfIn PDF document text
    • http://tidavilu.shsoh.com/uploads/1/3/0/8/130814017/malevuba-filereze-jivubedaju-wisifirajuxeb.pdfIn PDF document text
    • http://files.windsorjaguartroupe.com/uploads/1/3/0/7/130740524/pasogexotitizipaziz.pdfIn PDF document text
    • http://files.lascolinaspta.org/uploads/1/3/1/8/131856602/lawizamafeguv_rematiw_pixubutojaw.pdfIn PDF document text
    • http://soseniwe.lifetimeepoxyfloors.com/uploads/1/3/0/7/130776321/0fb88f3881.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/1/0433/9272/9246/files/18247822472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/kexavelumejex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasodidupafulad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4063/5042/files/android_home_environment_variable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/86775164500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/today_tamil_dinamani_news_paper_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/29369326769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/aadhar_card_online_password.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/sejarah_pendidikan_islam_di_malaysia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9328/7321/files/30342207526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/39239865049.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_off0001ab90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AB90 5184 bytes
SHA-256: 3e0b3b8c84b53eb3bea8d4118540c71750c2415bd448fe2431651f7ddb53b0e6
font_01_sfnt_off0001bd1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BD1D 18092 bytes
SHA-256: bc802c1ca003421a214e9e26fb1abbb4a47597cfd0ee357d003052a6274b5fba
font_02_sfnt_off0001f562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F562 17440 bytes
SHA-256: c97c08f83b95756698725960492df3ecf4a68a00c08c4d43b6643dcbed77da32