Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b54e95029211700…

MALICIOUS

PDF

61.4 KB Created: 2020-08-15 13:39:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7981ebbe68baed0e81620349f286ebb4 SHA-1: 12196645c1ae703fde98be128a90def85af24434 SHA-256: 7b54e9502921170069ad443fba8c1492f5f86f85592ea9a4e85fb3e7bb81c0b7
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and link farming, specifically pointing to 'ttraff.com' as a malicious redirector. The document body, though heavily obfuscated, contains the same lure text and the malicious URL. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious classification.

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/wb?keyword=vegetarian%20buffet%20menu%20pdf In PDF document text
    • http://tesugur.forstalsiberians.org/uploads/1/3/1/3/131398367/96b4bfe746f120.pdfIn PDF document text
    • http://pudoragiz.axismundihealing.com/uploads/1/3/1/1/131164250/4186846.pdfIn PDF document text
    • http://files.mykelpie.cz/uploads/1/3/0/8/130873732/820471.pdfIn PDF document text
    • http://files.johnjfrederick.com/uploads/1/3/0/7/130776264/78d14dc7f4ba.pdfIn PDF document text
    • http://files.suaxc.com/uploads/1/3/0/9/130969179/giwovuguj.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/1/0428/8305/5782/files/35090530224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0538/6647/files/bagian_bagian_bunga_dan_fungsinya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6467/1908/files/1974_chevy_truck.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/viligigegememix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/96100072752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7327/4010/files/45602876667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0094/6073/files/42708417422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/33645250948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3659/7654/files/fukubalowatoloje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9422/8630/files/wazusorutagatilelotudizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6891/4838/files/kobevabomejinesuvomutofo.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

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB390 5256 bytes
SHA-256: 2e339a0bdd4436579d64628d566fd13b6302eb7b762a0bd94a189e8f21b511c0
font_01_sfnt_off0000c558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC558 10308 bytes
SHA-256: af16b59e14d10f47a8d135dd61a8650e48f889209a75e44259ff05959563a11c

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