Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cdd767f5dced113…

MALICIOUS

PDF

73.7 KB Created: 2021-02-28 00:57:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 05d626fd40f008d2ce638486ad7ba1f9 SHA-1: 009da2ac4c0a8db040d451f974ae786ef9a99996 SHA-256: 8cdd767f5dced113deaf1a5065fe60b7b54a94ff03af1f9e623a320903c8328b
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://maypoin.ru/wix?keyword=stars+hair+salon PDF link annotation
    • http://usesucre.pro/consider_the_curve_given_by_y22xy_answercohhn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483097/normal_603aa08dc0da7.pdfIn PDF document text
    • http://xisumagogali.getenjoyment.net/stock_market_news_channel_in_tata_sky.pdfIn PDF document text
    • http://loneresel.mygamesonline.org/fernn_el_crack_jugando_fortnite.pdfIn PDF document text
    • http://handler-autoscout24.com/43176811132aan5u.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406793/normal_602d3dc660d71.pdfIn PDF document text
    • http://zodatowafe.getenjoyment.net/razikodopotagefenilekema.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/walmart_prescription_safety_glasses_prices.pdfIn PDF document text
    • http://zagejudivavi.sportsontheweb.net/lg_c9_check_refresh_rate.pdfIn PDF document text
    • http://reduslimitalia-oficial.site/110276491958i27l.pdfIn PDF document text
    • http://gejudoxe.mypressonline.com/blood_bowl_2_legendary_edition_star_players.pdfIn PDF document text
    • http://tixesikixux.mygamesonline.org/do_universal_remotes_work_with_smart_tvs.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/geradi/lozigixoxenuvijefus.pdfIn PDF document text
    • https://s3.amazonaws.com/dupula/wuvexetuvib.pdfIn PDF document text
    • http://magegefopo.atwebpages.com/75791081550.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_off0000e57f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE57F 4876 bytes
SHA-256: 0648227f38700c4506a89e946be36d44b492a62d086f25b08ec40e998a1d9610
font_01_sfnt_off0000f607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF607 10660 bytes
SHA-256: 7880c453d29d8207b20ef2536d0483caf8c4cf7a800572d31baca6c647e24406