Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2114272eb7accee…

MALICIOUS

PDF

44.7 KB Created: 2020-10-29 01:05:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: d32991540294d89c4062b956e8e721ef SHA-1: 15f2a8cbad2578c7db5a29f6c14a0eced93e44a2 SHA-256: f2114272eb7accee9a2a4580cd40a88519c65c1e0fdf4708197506fad6af155c
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/123?keyword=jpoint+red+dot+footprint In PDF document text
    • https://funebaxap.weebly.com/uploads/1/3/4/3/134399245/44f2068.pdfIn PDF document text
    • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/fifugo-xeguliweso.pdfIn PDF document text
    • https://meboguvogo.weebly.com/uploads/1/3/1/4/131437667/lisibojuk.pdfIn PDF document text
    • https://radisowe.weebly.com/uploads/1/3/4/3/134366404/7059716.pdfIn PDF document text
    • https://vegilirebaj.weebly.com/uploads/1/3/1/0/131070576/9640664.pdfIn PDF document text
    • https://nulomofog.weebly.com/uploads/1/3/4/3/134331556/vedugiwafufevekem.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/pivowa-lirizus.pdfIn PDF document text
    • https://guzebiba.weebly.com/uploads/1/3/4/3/134368687/db9ab09e2183931.pdfIn PDF document text
    • https://netaluzubik.weebly.com/uploads/1/3/0/8/130813777/fasiwukex.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jipowumat/gilujidiwokar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b81fe8d2-cbf4-4a93-8986-3b1a59470240/74380218816.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/burexisowujififoged.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/28396731988.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/59899772408.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/psychology_facts_about_human_behavior.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/jubobukubabarezezixux.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/net_set_go_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/telugu_astrology_books_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff43250d-63a0-45bf-9a03-b9a06df74f3f/88313953661.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/28185631044.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/545909c6-cb67-4551-be9d-6a4dca417987/40691220251.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/abrsm_theory_books.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_off00006f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F99 4604 bytes
SHA-256: 07f84155ac160bbd4f079452303ccafc0c4883d259834ff14bdd984eb6fe1e79
font_01_sfnt_off00007f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F57 11172 bytes
SHA-256: a8925ce11810bb0da866084067db267839a601b34c61e83230ac11e1c5e0ce70

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