Malicious PDF — malware analysis report

Static analysis result for SHA-256 562661a5a59e3176…

MALICIOUS

PDF

71.2 KB Created: 2021-02-20 02:37:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1cf26029083f88fd740e0eaf9f4e0020 SHA-1: 5b8ced03c8e9c5d660e765177d37df1c34dc232c SHA-256: 562661a5a59e3176f04ac50f653f7c2310c82d50047a71e4c5f777342320c799
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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/wb?keyword=citizen%20eco%20drive%20e820%20not%20working PDF link annotation
    • https://cdn.sqhk.co/safubuguva/XyMShfg/gujimimajepewu.pdfIn PDF document text
    • https://cdn.sqhk.co/muxigatatini/Tm9hQQj/babivebewujumirikij.pdfIn PDF document text
    • https://cdn.sqhk.co/papusabefo/iwjb0gx/dunobajusijenijun.pdfIn PDF document text
    • https://cdn.sqhk.co/pafevola/ex7jiKR/batman_the_telltale_series_review_ps4.pdfIn PDF document text
    • https://cdn.sqhk.co/bexamajuw/pv8gcgh/dwayne_haskins_stats_vs_ravens_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376374/normal_6025717c5812b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487894/normal_5ff03f909eb25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366395/normal_6023804e54403.pdfIn PDF document text
    • https://cdn.sqhk.co/geruxibab/jjHYhhd/63794458771.pdfIn PDF document text
    • https://cdn.sqhk.co/nujudemugipi/fAghAib/37121904991.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413573/normal_5fd808cd8e567.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/sepawi/pedestals_for_washer_and_dryer_samsung.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/62856803915.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/the_rocking_horse_winner_text.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/how_to_calculate_gdp_per_capita_formula.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_off0000d833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD833 5328 bytes
SHA-256: 6d5889b53a81e7af402268ca9ae568903e60efaace7c23baac4f021f706d4f5a
font_01_sfnt_off0000ea88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA88 11048 bytes
SHA-256: bb14fb8333ac5a07d80da745e1160cb1df43feffe87da222a587d49cc10d3082