Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb8d08543e146bac…

MALICIOUS

PDF

50.6 KB Created: 2020-08-17 15:00:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 101ff3ae510358abdfd9096236e57398 SHA-1: e4820c8469f18d30d9496a92b9fe5ef04c711f25 SHA-256: eb8d08543e146bace0f210881427a5c60c1a64e71ddfbd09a13c8cc39da3abbb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, with one critical heuristic identifying a link to known malicious redirector infrastructure at `ttraff.com`. The document body, though partially corrupted, contains text related to 'basic interview questions and answers for receptionist', suggesting a social engineering lure. The presence of a large number of external PDF links, many hosted on `cdn.shopify.com`, indicates a link farm designed to obscure the malicious redirector.

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=basic+interview+questions+and+answers+for+receptionist In PDF document text
    • http://files.drmeganrodway.com/uploads/1/3/0/8/130874526/3815472.pdfIn PDF document text
    • http://files.creationresearchstore.com/uploads/1/3/2/6/132680986/fcde3401c.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/1/0437/1618/2184/files/beginner_guitar_tabs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7679/7081/files/mixogeriwawixebapadobus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0635/9714/files/57621105704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5796/2405/files/34505034809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9534/1723/files/witewopat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4962/1406/files/adhesion_testing_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/95937962162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9516/2022/files/51875196697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/31801399320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4301/2256/files/4836588468.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
🗂 Part of campaign: creationresearchstore.com 3 samples

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEF 5444 bytes
SHA-256: c281206ebcd2c1ee564615c759d30327be513d3fe015b923aaf23c34522c1e2b
font_01_sfnt_off00009188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9188 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off00009a15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A15 10296 bytes
SHA-256: c06a56f72105cf0988e4a9c941a230ada19ec77f287b9e0e97ac530df0220bd9

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