Malicious PDF — malware analysis report

Static analysis result for SHA-256 6020e825941ab4cc…

MALICIOUS

PDF

42.9 KB Created: 2020-10-05 03:08:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 74b4afb95acc510c100d3d4dcfa9f4ff SHA-1: 12d55df880439b136afe22c751b7c58acb3edcec SHA-256: 6020e825941ab4cc155b60b0ea653355bd09621b1b27696b2318073f80744053
254 Risk Score

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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=animal+crossing+ds+android+rom In PDF document text
    • https://site-1036982.mozfiles.com/files/1036982/2408847394.pdfIn PDF document text
    • https://site-1037019.mozfiles.com/files/1037019/lizagovumage.pdfIn PDF document text
    • https://site-1039954.mozfiles.com/files/1039954/rapogidinom.pdfIn PDF document text
    • http://files.zerobigsis.com/uploads/1/3/1/1/131163935/6609853f5e264e.pdfIn PDF document text
    • http://vakegali.crankitvolleyball.com/uploads/1/3/0/8/130813332/jipenimeson.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/1/0429/3545/1804/files/49310094829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5582/7094/files/vadepenulabena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2141/7123/files/96129418044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2012/3801/files/hobby_lobby_springfield_il_jobs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5407/9904/files/34067564852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/7216/8351/files/gesolafasekadurorox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1320/8226/files/purinawibikuluk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/5365/8524/files/xumusofuzu.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 8

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_off0000694a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x694A 5248 bytes
SHA-256: 7623f4db0f82440e9fdd0892b6996ab19a10de3fe13257aa6c0a9cf6087d7737
font_01_sfnt_off00007b01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B01 10608 bytes
SHA-256: 5c74fa71ca5e40f1348a8a3ada538a3a841dc83bc8183b29af94c5ffb501c81a

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