Malicious PDF — malware analysis report

Static analysis result for SHA-256 222be2e3d57a0d7e…

MALICIOUS

PDF

62.6 KB Created: 2021-01-21 10:16:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0c89c42f5ea70f7eef8fd35398893204 SHA-1: 93673da5cbd72c3771d234c9af8f414291f1ce31 SHA-256: 222be2e3d57a0d7e1897afea3f75855944ea0900c2775719debb8689a0ab09f8
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://druttle.ru/wb?keyword=get%20more%20subs%20tullahoma PDF link annotation
    • https://wevenakexeg.weebly.com/uploads/1/3/1/4/131438808/fedunepekuvap-nanefusefejov.pdfIn PDF document text
    • http://womenalikumat.22web.org/b._ed_application_form_2019_up.pdfIn PDF document text
    • https://gunagejosiva.weebly.com/uploads/1/3/0/7/130738835/venujojufux.pdfIn PDF document text
    • https://safubijob.weebly.com/uploads/1/3/2/6/132682970/1536971.pdfIn PDF document text
    • http://topijakalez.22web.org/aplikasi_ukulele_tuner_senar_3.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/nelizenejakarug/como_baixar_minecraft_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/casablanca_saad_lamjarred_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/dalibukalesatimaf.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/counter_terrorist_mod_apk_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/seganekefovadejugev.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/tagijewubesopet.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/62530986467.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/34557753594.pdfIn PDF document text
    • http://bajofot.epizy.com/4613906473.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/aramide_ft_adekunle_gold.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_off0000bab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAB6 5096 bytes
SHA-256: 09d69e1155b73261b8e9189f0c5fdc92c8176977ef479857924dcf1fbe583aae
font_01_sfnt_off0000cbd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBD7 9912 bytes
SHA-256: 22ecb27f3dccad7b05a1b2dfae5a5862f3e54a03891e10c314af0994b109e898