Malicious PDF — malware analysis report

Static analysis result for SHA-256 30b0ede3f301defd…

MALICIOUS

PDF

34.4 KB Created: 2020-10-03 11:16:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: d1220c9d91b59de0fb42b3f092a999f6 SHA-1: 90b866d65c3eac44a0291532303d4ccb7d914bcd SHA-256: 30b0ede3f301defd2ddc4430c2a4a94ec6bde5e37cb9ae7e8738a10b923de8fe
194 Risk Score

Malware Insights

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

This PDF document is designed as a lure, presenting itself as a technical handbook to trick users into clicking embedded links. These links redirect to malicious infrastructure, specifically identified as a redirector service, which likely serves as a gateway to further malicious content or exploits. The ML classifier strongly indicated maliciousness, and the presence of numerous SEO-optimized links further supports a phishing or malware distribution scheme.

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://ggtraff.ru/strik?keyword=perry%2527+s+chemical+engineering+handbo In PDF document text
    • http://jusuv.nsnaconvention.org/uploads/1/3/0/7/130776791/rikizopaxoj.pdfIn PDF document text
    • http://files.jacklechon.com/uploads/1/3/1/3/131379923/juximarekinef.pdfIn PDF document text
    • http://files.jonathanjohnson.net/uploads/1/3/1/4/131407974/fezupug.pdfIn PDF document text
    • http://dibitex.massbailfund.org/uploads/1/3/0/7/130774979/jabiguxovu_jetolafujuxulaj_zaxezedu.pdfIn PDF document text
    • https://site-1039889.mozfiles.com/files/1039889/80279257525.pdfIn PDF document text
    • https://site-1036754.mozfiles.com/files/1036754/kijafejavalo.pdfIn PDF document text
    • https://site-1037120.mozfiles.com/files/1037120/69060851225.pdfIn PDF document text
    • https://site-1039496.mozfiles.com/files/1039496/24017690373.pdfIn PDF document text
    • https://site-1041081.mozfiles.com/files/1041081/tuledopasapo.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000485f.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000485f.bin)
    • https://uploads.strikinglycdn.com/files/24ac3dfc-c763-41d7-8a19-de0c6ecc0ce3/99803172561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8495/8882/files/tornado_shot_poe_build_3.11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9407/6312/files/seagate_freeagent_goflex_desk_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8885/5718/files/nivezituzepiwoloziduzedon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2352/4255/files/keto_instant_pot_recipes.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 extracted file (font_00_sfnt_off0000485f.bin)

Related samples 4

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_off0000485f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x485F 5632 bytes
SHA-256: 7e8d37a7339e2d90115730359f316c56d6eabb11248eda0df0c64f5a3f4c23b2
font_01_sfnt_off00005b6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B6A 9808 bytes
SHA-256: a0fba6e726808a4a56771f35714171509306a88ace86da124f5ad3412028e206

Open this report in the interactive analyzer, or submit your own file for analysis.