Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddb2a402d267f6d0…

MALICIOUS

PDF

73.0 KB Created: 2021-03-04 01:52:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1301714012812f8fa446b988ddbc1055 SHA-1: b29896e493a2f555c3d93738ef178aba321dcd2d SHA-256: ddb2a402d267f6d0980cd3f44b283548d9461f2b280d33a9345e223cd6b9a030
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://crophysi.ru/wix?keyword=super+smash+bros+unblocked+66+ez In PDF document text
    • http://mumijivamivaxij.medianewsonline.com/32075167323.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/hot_caramel_latte_dunkin_donuts_calories.pdfIn PDF document text
    • http://sowoxapexemex.sportsontheweb.net/how_to_reset_your_whirlpool_washing_machine.pdfIn PDF document text
    • http://liwexun.mywebcommunity.org/jogepaxivobuveloret.pdfIn PDF document text
    • http://jafoxidulez.mypressonline.com/how_to_clean_keurig_coffee_maker_without_vinegar.pdfIn PDF document text
    • https://kotuposa.weebly.com/uploads/1/3/1/4/131406283/872814846bfb9.pdfIn PDF document text
    • https://tijesefufejeje.weebly.com/uploads/1/3/4/8/134858706/5601492.pdfIn PDF document text
    • http://zawugudumi.getenjoyment.net/alex_rider_season_1_episode_3_cast.pdfIn PDF document text
    • https://sefidobove.weebly.com/uploads/1/3/4/3/134320077/jadaz_vunudimob.pdfIn PDF document text
    • http://jafoxidulez.mypressonline.com/ministers_license_jamaica.pdfIn PDF document text
    • https://dixelopenam.weebly.com/uploads/1/3/4/5/134590152/woxokewoninaf_xetozowoxineno_kupozigomale_fuporozes.pdfIn PDF document text
    • https://dinidoleto.weebly.com/uploads/1/3/0/9/130969871/f55401c.pdfIn PDF document text
    • https://pepazosek.weebly.com/uploads/1/3/4/1/134108786/fafejisibefid.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/divikufifir/information_overload_gif.pdfIn PDF document text
    • https://s3.amazonaws.com/mevuzokekenojab/cartoon_for_pc.pdfIn PDF document text
    • http://fipuxogililego.epizy.com/54087142177.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/danby_countertop_dishwasher_replacement_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/49024844683.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_off0000e176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE176 5824 bytes
SHA-256: a588d836db1f72f1071fbd8c48411abc6a73f425a2f585e592e7a75c9c43996c
font_01_sfnt_off0000f51c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF51C 9872 bytes
SHA-256: c845a1be2bc9fe8d1a79e29ce2c63a77cf3f652aaca7e74229fc6fb0f1f92407