Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ee9446795d6463…

MALICIOUS

PDF

64.6 KB Created: 2020-10-26 18:46:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 0290830f46fe2a3c35ee26ab98ba64ab SHA-1: 04bf1d85be3b4467f448b0335554c4e003573406 SHA-256: 34ee9446795d6463ed78a378bfa890a2b9288eaade88e9292ecb9263b0ac15de
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://ggtraff.ru/pify?keyword=denali+alaska+weather+averages In PDF document text
    • https://kixatefibav.weebly.com/uploads/1/3/0/7/130776592/999b88af52b1014.pdfIn PDF document text
    • https://rizebilawi.weebly.com/uploads/1/3/0/8/130814716/9640b0bcec910.pdfIn PDF document text
    • https://jalewigevat.weebly.com/uploads/1/3/2/6/132681207/9421284.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/kadupe_ripovu_jozovagazemewe.pdfIn PDF document text
    • http://www.denali.national-park.com/weather.htmDenaliIn 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/3bcc08e6-4356-4411-abba-fbfd9003c8c7/saitek_driver_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51ee0a21-f0c8-4946-b504-20cc379ed9ea/ramidaleso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e90f36d-08b7-43fd-97e5-a1b09da721dc/63518317405.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99885c65-ef69-421d-ab66-57f72f6504a8/tiroxem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7619/2922/files/42769144849.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/juxaxapenavo.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/muzuxozuzitalalediwomoja.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/fumewaragemopamex.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/multivariate_gaussian_matlab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fb2bcf0-7b33-46fd-92cb-7b98bda76d59/wekebijigesanulerupaxut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e69dcca-2712-49f1-b4e7-88ec29219c41/kidaxejixi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c70dca82-3eea-4646-a611-eec0d6b7b205/skyrim_special_edition_dodge_mod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/499bb975-1492-4258-9fbf-55c06468c875/zedusibuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/0807/2104/files/xixirewopinakatozipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8386/7326/files/lebutewog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1927/4920/files/permit_practice_test_nj_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/2844/7900/files/full_schedule_of_ipl_2020.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB273 5160 bytes
SHA-256: caedc356aec5aa05849d7769b5b06de401a2b6a36aa85b659a80cc7a2bbe3099
font_01_sfnt_off0000c414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC414 3720 bytes
SHA-256: d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281
font_02_sfnt_off0000cf78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF78 10944 bytes
SHA-256: d232151ebbeaac76765c7083dced9dbb20e8c2acba2d15d79088380ecd387fa6