Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab3e0be6b15a4ca…

MALICIOUS

PDF

39.8 KB Created: 2020-08-12 01:07:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 205590f2dcbc697c263d16c3e1ced8d6 SHA-1: c959830c151c3ba61adf633d931bbcacf764136f SHA-256: dab3e0be6b15a4ca44f11144d01c74ed4d6f72df65a4508bf84abc320540fed1
202 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains text related to 'remittance letter sample pdf', suggesting a lure for financial-related phishing. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a campaign to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.ru/wb?keyword=remittance%20letter%20sample%20pdf In PDF document text
    • http://files.jomehndi.com/uploads/1/3/1/6/131606465/365c31d885.pdfIn PDF document text
    • http://files.whitemtncommunitycoop.com/uploads/1/3/1/4/131437683/xatezofutexas.pdfIn PDF document text
    • http://files.grelenonline.com/uploads/1/3/0/7/130738852/zimis.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/1/0430/6065/8333/files/bumirunulawelifadosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0171/5622/files/96614157813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7676/4327/files/90638034373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3196/2535/files/11604694518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7101/2006/files/biohacking_secrets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7279/0427/files/les_revenants_season_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/tasurupowojolajakot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/gexonufosurudokowef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8472/4889/files/ayushman_bharat_banner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/mifipedabamom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/lijeguvanarep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/lubenomewilopumadijenad.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 5

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_off00005ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF3 5308 bytes
SHA-256: 6bb2a13deee51c0b4b13da5a53c448214bc6c78a5337ff06946f269445434b58
font_01_sfnt_off000071df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DF 9656 bytes
SHA-256: c3b81ae0c48c88b4d76bd69ec9da1db8b248a1b9d7a00abbfb1c2ceeca118ca0

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