Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a84e0e868f0892…

MALICIOUS

PDF

39.3 KB Created: 2020-10-27 11:32:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 1531c7c4d1536f486b115f3f177dbbb8 SHA-1: 398db9d62afd33ef3407287de3e9c1a7f303de60 SHA-256: 60a84e0e868f08922aa99f7b062f927a9eb443c1337d0d820d751df080f2f69c
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=mikasa+plate+compactor+instructions In PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/59468e48750.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/vifotatilaw.pdfIn PDF document text
    • https://naxesitigas.weebly.com/uploads/1/3/0/7/130740165/rasisaguferunaj-pozutam-zokas.pdfIn PDF document text
    • https://misutinulil.weebly.com/uploads/1/3/1/4/131407711/8604940.pdfIn PDF document text
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/d3e5f51546db88d.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000059f2.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000059f2.bin)
    • https://s3.amazonaws.com/zijivevip/buffer_solution_download.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/java_programming_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/40149472728.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/types_of_alternative_assessment.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac23ccbc-471e-4b61-b255-dc744bb7fa10/how_to_build_military_grade_suppress.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/610d908e-6e41-44bd-b4e3-81842aa26823/dikukumamuxapuxonepu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62aea2ef-2cd7-41cc-b782-7be621132a59/40097014991.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9b9a924-90fe-470d-a5c6-ef54c45e09e4/sukefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6216/5141/files/37th_wedding_anniversary_gifts_for_her.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/2927/4007/files/certificate_of_good_moral_character_dlsu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da9bbe3d-21e3-4201-bca1-0f8fbeb7d889/nukatedamo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/226d08e0-1473-49cc-9146-178a6072e5a6/how_to_grow_a_subreddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8950b0ac-332d-4a83-b1c0-065dcd2eb1a8/fazefunimarazamosimip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/4626/3707/files/ninja_village_naruto_is_coming_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5940/7765/files/types_of_multiprocessor_operating_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5959/1321/files/73581962511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6317/1485/files/utility_bill_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9303/1080/files/touchstone_english_book_3.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_off000059f2.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59F2 5148 bytes
SHA-256: 5884885ac93e9c14fc8708d464bda33146b8c7c9c29a5b2d3c61045877aa8a40
font_01_sfnt_off00006b5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5C 10724 bytes
SHA-256: 84a181174236059916ad8c00f9756db5e6cb33a0644fbc5890b045cc40143d0c