Malicious PDF — malware analysis report

Static analysis result for SHA-256 5359ae678fda7cba…

MALICIOUS

PDF

39.9 KB Created: 2020-10-15 06:20:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ce5cc4d5cdf5384c11b624d7f62d7090 SHA-1: fbec38c25d21aaf0533f17f1317b1e4de070e8f7 SHA-256: 5359ae678fda7cbab194cddec2cf8e8d5aa3c55739881bdea46aee46621cd2fc
194 Risk Score

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://cctraff.ru/strik?keyword=driving+simulator+2020+mod+apk In PDF document text
    • https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/wokezito.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/vokelunewej_wedezeregen_lejofe.pdfIn PDF document text
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/duzebajonufepunurudu.pdfIn PDF document text
    • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/2665259.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365612/normal_5f879e996125c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_5f8733e46fab4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366399/normal_5f872e3a07fa0.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/1/0481/3645/4307/files/bovulaxipufigozedugif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/4247/8501/files/58739401385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7645/5066/files/jennings_and_rall_website.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/6103/6444/files/periapt_of_wound_closure_cost.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38299fba-21f8-46b6-8063-d864a4029037/zilonuto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/294543d1-099a-4ee1-a18a-bf3f0b90215c/94734594712.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da6a3cbb-9974-459c-8200-86730ab4e5e4/pilitoposufavezujigid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e626d40-b658-4252-b272-344fa5d39cd8/tatopoganidivamino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/1584/8103/files/titus_andronicus_full.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9359/7601/files/lasovobujizijoxirixepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/7885/3284/files/osrs_desert_lizard_slayer_task.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1214/5830/files/rimixizagofili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/circle_text_in_powerpoint_2010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4669/7122/files/82333321822.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C03 5676 bytes
SHA-256: 71b800be72bd1bb897f00ea5e402a955970fd1efacef962260f9f325b0a0384b
font_01_sfnt_off00006f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F44 10216 bytes
SHA-256: bf07700de463a65cd9f5579f6a10514b743ef3d68b0717403c97ff42a156c807

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