Malicious PDF — malware analysis report

Static analysis result for SHA-256 f45c222c0907dad6…

MALICIOUS

PDF

73.3 KB Created: 2021-02-10 23:15:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d65c06235c5c1c71584d46f973aa2e13 SHA-1: cc083eae9b30d878b693231da5f8832f6565d13a SHA-256: f45c222c0907dad6e476b27aa95a16ddcc997d4ee0fcef507a7f8f91a7434b82
186 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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=can%2527t+hide+bookmark+bar+chrome PDF link annotation
    • https://cdn.sqhk.co/mavozopofug/jMjghcK/lotagudigiwuzo.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/gh2acgj/survivalcraft_2_future_updates.pdfIn PDF document text
    • https://cdn.sqhk.co/bexamajuw/awQjBib/worms_3d_pc_controls.pdfIn PDF document text
    • http://kpovli.ru/lonerism_hoodie_for_saleqznk5.pdfIn PDF document text
    • http://faxagigotitij.66ghz.com/best_avatar_maker_app_for_android.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403936/normal_5fcdf3038ddf8.pdfIn PDF document text
    • https://redelonoxoti.weebly.com/uploads/1/3/1/6/131606094/58ed19941d8.pdfIn PDF document text
    • https://nikuwexipamojag.weebly.com/uploads/1/3/0/8/130813731/sizijit.pdfIn PDF document text
    • https://cdn.sqhk.co/buganixezu/ihhiegj/dj_marshmello_songs_rooftops.pdfIn PDF document text
    • https://pumelagu.weebly.com/uploads/1/3/2/8/132814433/1464643.pdfIn PDF document text
    • http://50offstore.pro/imaan_beimaan_film_songvwk4a.pdfIn PDF document text
    • https://fibimijisu.weebly.com/uploads/1/3/4/4/134461798/261326.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rubuvajaroxe.epizy.com/baby_solid_food_guide_australia.pdfIn PDF document text
    • http://jataluwapimose.rf.gd/71571851099.pdfIn PDF document text
    • http://bupizaxumora.epizy.com/13040747889.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_off0000e100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE100 5112 bytes
SHA-256: 0e1d9c5c2b0e2b1c1ab56bf447d4bcdf2206012e0e1808549cedcf40ed368d19
font_01_sfnt_off0000f240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF240 11256 bytes
SHA-256: 12b32d52e5ca56bee5689ba1e6e3ba960258d9a0c82968f79cfac0aa695daaad