Malicious PDF — malware analysis report

Static analysis result for SHA-256 d86fd2bda8c9e477…

MALICIOUS

PDF

61.2 KB Created: 2020-08-04 13:47:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8444d16de9204fcddc90b4332bc2d24e SHA-1: 693bf7827bfc47d0f70bfefec2f298ceb2d660ee SHA-256: d86fd2bda8c9e4771c2393c00434008b8c2ed1e2a1ab30b3a382c92e9416659b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text that appears to be a lure for 'B. sc 2nd year chemistry notes pdf'. The primary attack vector is likely a user clicking the malicious link embedded within the document, leading to further compromise. No scripts were extracted from this sample.

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=b.+sc+2nd+year+chemistry+notes+pdf In PDF document text
    • http://files.swanleeartdesign.com/uploads/1/3/0/7/130738799/8a68ae8.pdfIn PDF document text
    • http://files.craftpixie.co.uk/uploads/1/3/0/7/130740412/pawogolitibafi.pdfIn PDF document text
    • http://files.stephenlotus.com/uploads/1/3/0/7/130739601/2297693.pdfIn PDF document text
    • http://files.sweetnelsons.com/uploads/1/3/1/4/131406258/402c292be8f364.pdfIn PDF document text
    • http://files.downrivermodelarestorers.com/uploads/1/3/2/8/132814342/6212874.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/1/0437/9102/4280/files/mexelejimoxomatowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0663/7726/files/pagenusigoneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/zejomev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1617/5263/files/48827316902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/19506219878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8180/8549/files/tobopodavigexekoguvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0781/8398/files/dupofuwobisifazudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/papop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5118/6336/files/88960173796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7654/0834/files/2199778152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8980/2904/files/81585724362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/gebutikuzagoxaxetuluru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5124/5987/files/guruwajevavolikipub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/somixuraze.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008370.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8370 5680 bytes
SHA-256: 8117328fd3b349c1e6770228bbf3f809d248c613cce63ab1f6123c0595d447cd
font_01_sfnt_off000096ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96AC 3204 bytes
SHA-256: a0f5a8dfeaa0bb6dc0effbaf73f2996d6fa971a09dbb121d521afc971fdcd47e
font_02_sfnt_off0000a39f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA39F 2320 bytes
SHA-256: 5e067315a2bd9524b6254977960f062bb129990ed69868068e29b4596197f3c8
font_03_sfnt_off0000adf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADF2 10144 bytes
SHA-256: b95ce5290a0cf82e3af2e549c2e4b7c428585584facbab55b8ce0f2574640c93
font_04_sfnt_off0000d0a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0A5 16224 bytes
SHA-256: a349519ccbdbca3d75704c2becf615ab37801eb1543272228454131dceb83acc

Open this report in the interactive analyzer, or submit your own file for analysis.