Malicious PDF — malware analysis report

Static analysis result for SHA-256 08e736d5ed97ce6d…

MALICIOUS

PDF

53.4 KB Created: 2020-11-06 07:39:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-10
MD5: 1d41770035e28dc8e0184987c1d11888 SHA-1: 513f0804da4d54887899bc192339a3f2717464a3 SHA-256: 08e736d5ed97ce6db18a46a3090ace6576c09f82fb54123a1cb346fbe173781d
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/123?keyword=user+manual+mavic+2+pro PDF link annotation
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/8504891.pdfIn PDF document text
    • https://metufudosajaf.weebly.com/uploads/1/3/4/0/134012305/sasizuba-zebaxobi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393204/normal_5f8e50e304218.pdfIn PDF document text
    • https://fevonijapa.weebly.com/uploads/1/3/4/2/134234837/sujagozepitukukikese.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/30240.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369762/normal_5f8a909a6118d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367633/normal_5fa49f75a906b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366005/normal_5f870ce82ee80.pdfIn PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/d1d3c9182.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384048/normal_5f91e991b994e.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007ecf.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007ecf.bin)
    • https://s3.amazonaws.com/moduxanakuri/ap_chemistry_zumdahl_10th_edition_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/92639161758.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/my_pillow_promo_code_11.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_off00007ecf.bin)
    • https://savannah.gnu.org/projects/freefont/In extracted file (font_01_sfnt_off00009067.bin)
    • http://www.gnu.org/licenses/In extracted file (font_01_sfnt_off00009067.bin)
    • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_01_sfnt_off00009067.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECF 5260 bytes
SHA-256: c2082d34edf324855ccf425d1fadd14c4173ba9e978af990744252dc4f1ed121
font_01_sfnt_off00009067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9067 6252 bytes
SHA-256: 83a486a56c5e4d14ed8761275b64361fba19a86f21d5406f4638b9f37aa00e44
font_02_sfnt_off00009f96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F96 11980 bytes
SHA-256: 9ae46d8e6145dc5fc982626d2642f03526525752e9709122f3c95facbdfcae53