Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6c122ec0c4b4e62…

MALICIOUS

PDF

78.7 KB Created: 2021-02-25 10:50:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4219267fe4ebfafe81a1bd7b6c8a573d SHA-1: d8d202f27cbc52bf3dbe67ae508e077637246434 SHA-256: d6c122ec0c4b4e623887657039fb65f6c65075c2610601090c11a9131efd4da4
126 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
  • 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/aws?utm_term=cloud+computing+definition+aws PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4489981/normal_60003b8ae18ec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417141/normal_600003eee0898.pdfIn PDF document text
    • http://jinevul.mygamesonline.org/84937168501.pdfIn PDF document text
    • https://cdn.sqhk.co/volinafi/gfNRhey/the_walking_dead_free_casino_slots.pdfIn PDF document text
    • https://cdn.sqhk.co/noviraxat/bAe59hd/black_friday_deals_2019_amazon_fire_stick_4k.pdfIn PDF document text
    • https://cdn.sqhk.co/jimatoju/jhdI3Pq/top_10_caller_tune_2020_tamil.pdfIn PDF document text
    • http://nafarami.medianewsonline.com/kajeji.pdfIn PDF document text
    • https://cdn.sqhk.co/bimonabozo/gjUhggj/my_android_is_charging_very_slowly.pdfIn PDF document text
    • http://rujurag.22web.org/53494349906.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://doriponesarom.myartsonline.com/1868021268.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/performance_appraisal_system_in_accenture.pdfIn PDF document text
    • http://zerekigukazaja.epizy.com/89559068271.pdfIn PDF document text
    • http://xigakixu.epizy.com/kali_linux_2019_google_drive.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/5042913031.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/62506378336.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_off0000f693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF693 5376 bytes
SHA-256: 5fc9336197df6ebdb87da03c61f28ce50e1e43bc2ce5f40f32559f4f704815e9
font_01_sfnt_off000108e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108E3 10940 bytes
SHA-256: 5dd95c27b19fa24d59da9cf5d3c5331377411ec11a4c9568a32fcef38d4c2ada