Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eed1e6e256b6436…

MALICIOUS

PDF

55.1 KB Created: 2020-10-26 22:31:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 60739633bd411c073e811eff883e3dbb SHA-1: 5519e92d61036c56cf5b35a5b97d0ac337c4a236 SHA-256: 0eed1e6e256b64365d21956d39e5d7d72fb86852947684b5c88397acfbcb5903
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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://cctraff.ru/strik?keyword=carrollton+farmers+branch+isd+school+locator In PDF document text
    • https://cdn-cms.f-static.net/uploads/4373271/normal_5f91fe927ae83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403951/normal_5f956fcec933e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383692/normal_5f8d604f563d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366339/normal_5f8760cc3ebaa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380211/normal_5f8df746b2e2b.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/8504891.pdfIn PDF document text
    • https://pezopipowom.weebly.com/uploads/1/3/1/4/131406060/d4f70825.pdfIn PDF document text
    • https://samomalekadoj.weebly.com/uploads/1/3/1/4/131438786/luwedopib.pdfIn PDF document text
    • https://kotonimurapuva.weebly.com/uploads/1/3/4/4/134440920/detavoxeligezet.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000086e6.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000086e6.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000c004.bin)
    • https://s3.amazonaws.com/muvojugejoxip/barron_s_ielts_superpack_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/kumub.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/1777196308.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/fofevubefozavorut.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/protein_gel_electrophoresis.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/acca_f9_bpp_study_text_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/megelugik/mumiraj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0138/0501/files/fastest_way_to_breed_cows_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/3070/8129/files/bear_jokes_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3876/1109/files/34595424256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0752/7077/files/89902335023.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fef12642-7394-4f6d-aea4-b037a93f837e/37831558892.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85762885-71eb-4840-81e7-7973426f5a74/john_deere_1700_planter_parts_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e2a54b7-2f7f-4093-995e-61b670031a6f/tilunu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22f8fc8c-2bf7-460e-9a9a-ce035b2dd08c/xojezubodax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1713a8d-ae9e-4210-8ba3-4fee58f13e27/64188341180.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_off000086e6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000086e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E6 5212 bytes
SHA-256: 5cdf205939380ea25cac27bb65a12aafb6518a73eec5684a05f20a81966f48b1
font_01_sfnt_off0000986b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x986B 11612 bytes
SHA-256: fdc19f320ccf8e9f9c042343011fcacb7982619171c95fade0cda14b420d00fb
font_02_sfnt_off0000c004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC004 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e