Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cb7709edb9dbedd…

MALICIOUS

PDF

71.6 KB Created: 2021-02-09 09:48:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 108df7ae4583a0943b68935d7bfab873 SHA-1: c2c2d48fe591e4e0a6c6c6229687515645ef46c1 SHA-256: 2cb7709edb9dbedd61aaea53fa57e8f080b66e000c5fbd98749ea4225831c4e7
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://bologen.ru/123?utm_term=spider+man+homecoming+putlockers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4470553/normal_5ff13d3839c99.pdfIn PDF document text
    • https://cdn.sqhk.co/nejibija/gc48Ojb/70638241068.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470228/normal_5fcc454a38f5a.pdfIn PDF document text
    • https://cdn.sqhk.co/xugikokazo/Uc8boCT/roblox_skyblock_money_hacks.pdfIn PDF document text
    • https://cdn.sqhk.co/rojisixel/hgoiggd/subway_surfers_characters_dates_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/bowewulaxam/eij4zl8/spider_solitaire_app_no_ads.pdfIn PDF document text
    • https://cdn.sqhk.co/vadetegubufo/FP9jIgc/tiwez.pdfIn PDF document text
    • https://cdn.sqhk.co/babakobesuxe/2UtgfS3/master_assassin_armor_vs_ishak_pasha.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/dtjbtij/kuxisewefiwuvixudonebab.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/toliwudalamem/98636792673.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/brain_out_level_117_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/karexafuki.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/cdc_flu_guidelines_for_schools.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/aashto_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/asha_film_song.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_off0000da90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA90 5652 bytes
SHA-256: d5278de9030a0c9e19e526665675a01e9b63499b450ed11f82ee2f8932e208ec
font_01_sfnt_off0000ed99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED99 10468 bytes
SHA-256: 2e3a25b073ddbe97f07c241956ea8302b8d75cd60f685ddfa6fa926fc34a2d7c