Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2946dc458a8d3f3…

MALICIOUS

PDF

45.0 KB Created: 2020-10-29 01:46:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 138aa9f908e79e6eb03ce7aadbf0b966 SHA-1: d443d934f3d7ee0eb7798424676bfbe3c322599a SHA-256: e2946dc458a8d3f37b0cc409837842447b4fc43a8d5699a8ae3c2015c0a3b02d
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.me/123?keyword=pop+up+hamper+wire In PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/916761cf89a.pdfIn PDF document text
    • https://wosezobar.weebly.com/uploads/1/3/1/8/131856012/4b26c3b70bbd7a.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/nanomegavilisoriwem.pdfIn PDF document text
    • https://xedexebil.weebly.com/uploads/1/3/4/2/134235570/jarofivomazabu.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/8554420.pdfIn PDF document text
    • https://jagozuru.weebly.com/uploads/1/3/4/3/134360529/jukegabirub.pdfIn PDF document text
    • https://kivuligob.weebly.com/uploads/1/3/0/8/130874143/16b4abd1d49618e.pdfIn PDF document text
    • https://mekuxiwefajup.weebly.com/uploads/1/3/0/7/130739023/111a961f0d68209.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000072d6.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000072d6.bin)
    • https://s3.amazonaws.com/ronenitevodo/la_fitness_edina_reopening.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/7842/6007/files/cognitive_learning_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8999/2105/files/needle_tatting_patterns_and_designs_with_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/7953/9134/files/ifm_efector_pressure_switch_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/21510003823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/7537/9622/files/nexofeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2772/5995/files/reduire_taille_fichier_ipad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9314/0675/files/sigue_sigue_sputnik_21st_century_boy.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/20911562960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6614/6472/files/wipikosa.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/6978687977.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/mammalian_cell_culture_protocol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/0302/5840/files/vodegutudepesifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3698/3720/files/76691635702.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/bovivosafevalot.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/2542270847.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/yoga_anatomy_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/tigawutejapupoduzax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/9178/0281/files/dezogikomavemasexes.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/coldplay_fix_you_chords.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_off000072d6.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D6 4944 bytes
SHA-256: d47885f366cb6ece40b509d4d9d409fab3f780ecbb29e4ef964d81ae53d3c171
font_01_sfnt_off00008389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8389 10360 bytes
SHA-256: c833c625296c3aa6810daf6e8952d2f2c59016e26401542e0a9f5cc255947ab5