Malicious PDF — malware analysis report

Static analysis result for SHA-256 61d7ae4321f97627…

MALICIOUS

PDF

277.3 KB Created: 2020-08-26 10:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9bfb68d0c8073e46a06db28a0082b00a SHA-1: 1a1171469b4909ba521e56c3a7a51e63978e20ab SHA-256: 61d7ae4321f976270e3e36f22b9d87928333aa50c03d2cc59efbf3c0b4f0784e
134 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The ML classifier also flagged this PDF as malicious. The presence of this URL indicates the document is likely part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 4

  • 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.
  • 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=cape+biology+syllabus+2018+pdf In PDF document text
    • http://gaxuraxeg.my-mobile-massage-therapy.com/uploads/1/3/1/0/131070189/tagejifexuduzomufe.pdfIn PDF document text
    • http://files.nessflett.com/uploads/1/3/2/7/132741476/pajiz.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/overloading_assignment_operator_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7155/3188/files/misawovapeborebemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/nenamizit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7165/9414/files/19815590122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1900/9189/files/453952873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8575/6568/files/rewuxulawibovifibarotiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4715/6903/files/atomos_shogun_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7747/6260/files/ridetipikozekakaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/lejujiwajopiwuzidafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1274/2550/files/jailbreaking_ios_7._1._2_iphone_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/45295443254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5558/files/jowifatufolikatasox.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://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlTibetanIn 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_off0003d647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D647 1656 bytes
SHA-256: 93d5bb2720de0088363acb3e2129b5e4d541aff8fdb5f455a78cec64962762f1
font_01_sfnt_off0003de87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DE87 5596 bytes
SHA-256: 0026489443ecef251187130fe4c964a883a8d9d75f19d0dbcf78dd5f6d66a32b
font_02_sfnt_off0003f19c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F19C 9204 bytes
SHA-256: 5235a9ef7d9eb2c031223c23f24cd9ad2a50561f9bb7bf729a46b44e4331137c
font_03_sfnt_off00040404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40404 17412 bytes
SHA-256: 8a5055b17a8dd7f6cca0fcecb73fc63e211d9e76ec004e7fe913695c5edbb033
font_04_sfnt_off00043899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43899 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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