Malicious PDF — malware analysis report

Static analysis result for SHA-256 6edacd210a5b0304…

MALICIOUS

PDF

62.5 KB Created: 2020-08-21 03:48:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 680a695876fe6199a3f07a9cba8745e6 SHA-1: 5ac6a9cf238142aaddefe705a6a4bab68e05855f SHA-256: 6edacd210a5b0304a59d16dbac997bb0ecf93d108233935497852744266b1589
222 Risk Score

Malware Insights

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

The PDF contains a lure for a 'BSF constable tradesman answer key 2018' which links to a malicious redirector. This redirector, ttraff.cc, is known to lead to phishing or malware distribution sites. The document also contains a large number of links to PDFs hosted on Shopify, likely part of an SEO link farm to improve search engine ranking for the malicious lure. No scripts were extracted, but the primary attack vector is the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bsf+constable+tradesman+answer+key+2018 In PDF document text
    • http://files.juddbristo.com/uploads/1/3/1/3/131379246/piduj_dibusuxusigeni_rodukepuxusov_bevafi.pdfIn PDF document text
    • http://files.thisweeksbestdeals.com/uploads/1/3/1/3/131381109/vugemafuxamidus.pdfIn PDF document text
    • http://bidib.blogwithbrit.com/uploads/1/3/1/6/131637016/zapiporolodobe.pdfIn PDF document text
    • http://files.cleanteam-wc.com/uploads/1/3/1/3/131384638/2775539.pdfIn PDF document text
    • http://files.sunsethouseandgardens.com/uploads/1/3/1/1/131164063/beroxuw-wusamelizabu-lutinelexuted.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7659/7400/files/53280348216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6823/3630/files/vobukeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9910/9016/files/electronics_workbench.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2408/9242/files/bavixapurogef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96672573922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/70188788718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/38357864584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6149/1352/files/kenmore_power_miser_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8323/5489/files/42824267767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3346/7807/files/cbse_class_11_physical_education_syllabus_pdf.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000089cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89CC 6136 bytes
SHA-256: 6df183839e171cb129a83c68502900d5780f45e750eff6ef47475bbf430465f9
font_01_sfnt_off00009eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EAA 10776 bytes
SHA-256: acae4ea2b20538b4e58366f2cb8a741d2e39bf6bb61d760d8a088b60e8624351
font_02_sfnt_off0000c394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC394 16096 bytes
SHA-256: 2fa4f296fe9e38b1bea2264e65e06c45fbbf4edfcb32b68fd436b1108ab95b01
font_03_sfnt_off0000d897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD897 5296 bytes
SHA-256: 285eaea1eea8f49adb1e556cd608b9af940f3f5663b7203ac80cfeffb1b93463

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