Malicious PDF — malware analysis report

Static analysis result for SHA-256 9049f90448d0a1e2…

MALICIOUS

PDF

43.6 KB Created: 2020-08-22 03:00:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b1e84988559f02bb192372fb8d43dd1 SHA-1: be6e8b6f015053ecb9647b26b5b323ef1c6573bb SHA-256: 9049f90448d0a1e2d4e245a786c369bd3fd44f588047a9a5d544e6982b2e81a5
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a vehicle manual. The presence of a 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic firing and the 'SE_CALLBACK_LURE' heuristic strongly suggest a phishing or scam attempt. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/pify?keyword=2016+gmc+acadia+denali+manual In PDF document text
    • http://files.drumbarossa.com/uploads/1/3/0/8/130813906/posulemigatuta.pdfIn PDF document text
    • http://kuteve.bellacreativeevents.com/uploads/1/3/1/4/131453555/b806cdce99.pdfIn PDF document text
    • http://nurux.semindigenousmusic.com/uploads/1/3/1/8/131857315/pewuduzop.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/1/0431/9143/5422/files/19647572384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5733/8776/files/aprender_russo_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/pupef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5834/0774/files/53548328726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6187/8687/files/suxasatepefakumepewanise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/vakilabasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0326/3650/files/que_es_el_gnosticismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/doubly_linked_list_in_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/5924/0101/files/reporter_young_sklepy_stacjonarne.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 2

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_off00006bab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAB 5368 bytes
SHA-256: dec3fd4e7bc9e864b72d6c4ec16313608cb8a310552c165be09e2059c148936d
font_01_sfnt_off00007dd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD5 10512 bytes
SHA-256: ea4fe5816fc92f919b095a07005136950c37ea9918f36c1cc3463d358c22c1c7

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