Malicious PDF — malware analysis report

Static analysis result for SHA-256 7934bf359197ecba…

MALICIOUS

PDF

45.8 KB Created: 2020-10-29 08:08:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: be9c0f7f359e2ba6a577fa21cf9d1164 SHA-1: c6b61bcdafbce990e41889940e461a4af868532e SHA-256: 7934bf359197ecbac8262a0e2b3a77450ba6904296ca79726db4d7f3900c4d76
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://ttraff.cc/pify?keyword=life+after+life+raymond+moody+pdf+in+urdu In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374851/normal_5f97cd7830b83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370288/normal_5f93803f57b53.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8594515a-3202-41b0-b4fd-a318964c5118/62116902194.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c86b91c-c329-4f10-9bb4-55275ae0f561/35039628186.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e62cb4a-c071-4eea-85f5-d72d684bf936/wodowularipotiwotamokize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/1819/8424/files/52137512609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/6820/3430/files/in_search_of_memory_kandel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0491/9351/7222/files/85456123027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/7207/5925/files/35201436544.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/23153144855.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d0bb29f-dd69-46fd-859e-e242a694cbe9/xujifikaxidizevatubenu.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/wewires.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/ganorekugevedusobubaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7690/3600/files/sap_bpc_11_embedded.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/diwana.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/data_structure_and_algorithm_in_java_tutorial.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9ba5ad5-0946-43ba-8b3e-d4ca010316be/revusitadebokuru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8384cfe1-1a95-436d-9647-4d4e75d907bc/59584567877.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69c94fa0-9834-460b-9e43-90be1023b867/70048020319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8412/7135/files/pegexuwija.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_off00007501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7501 5052 bytes
SHA-256: c31354845cbc66a1838dd8f1a176dfcb9fca3004d175ac860be36495db3cbadc
font_01_sfnt_off0000862e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x862E 10256 bytes
SHA-256: bbdda9e6eaa6b01da92fe1b21d34acc1ece437c4463525060aa20e8f131fd28a