Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeb9a9ad8d845e2e…

MALICIOUS

PDF

48.0 KB Created: 2020-11-09 10:49:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: a82ca8dc1727ff7955426c02c349be19 SHA-1: b7fe2c52d96d0fcc799cc41e8121ba8d705ead24 SHA-256: aeb9a9ad8d845e2ecb1973a0ba7c05e2cbe90c4268b655696321560b8bd022ce
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=watch+my+hero+academia+free+dub+season+4 PDF link annotation
    • https://pupotebomur.weebly.com/uploads/1/3/4/7/134707076/0f087e407abd87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387586/normal_5f93557d25652.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389797/normal_5f984a9dca9f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381105/normal_5f985a1a52ed9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388046/normal_5f92992a2f9cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368746/normal_5f8a1597284d3.pdfIn PDF document text
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/96c09c94888.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403824/normal_5f953f3a51f9a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://gikusasovi.files.wordpress.com/2020/11/keximeresata.pdfIn PDF document text
    • https://wevixeda.files.wordpress.com/2020/11/41542137443.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/types_of_rocks_worksheet_answers.pdfIn PDF document text
    • https://laxemabo.files.wordpress.com/2020/11/cs_1.6_jailbreak_jbmenu_plugini.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/48787480719.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_off000080d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D3 5572 bytes
SHA-256: 05577c2a38e9cdfa6ceeec063fd2075122520d41bf9f358fb1f225ff031271f6
font_01_sfnt_off000093b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93B0 9048 bytes
SHA-256: 9fc8a07be061cce2a916b106692cae5e035e5900f70d76ac7585e05cf78acd85