Malicious PDF — malware analysis report

Static analysis result for SHA-256 c92f96073d464d19…

MALICIOUS

PDF

74.7 KB Created: 2021-02-23 13:14:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: bb94f855d019b7ff84e3d7e2dd86fd68 SHA-1: aeec6bc15d0b51dd6e36c7e1413d75fcbcbf258c SHA-256: c92f96073d464d19fbcedc8da84ee8e77b8181995ab259475c4eb1a014cbee52
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://jottigo.ru/123?utm_term=what+type+of+oil+do+you+use+in+a+pressure+washer+pump PDF link annotation
    • https://nolaxefipox.weebly.com/uploads/1/3/4/7/134740184/377ec6.pdfIn PDF document text
    • https://cdn.sqhk.co/jibenapola/hebhjhh/tifajefuder.pdfIn PDF document text
    • http://card2card.live/nitetoxipops62ij.pdfIn PDF document text
    • https://vezefujofebiv.weebly.com/uploads/1/3/5/3/135304234/jogepabemesewo.pdfIn PDF document text
    • https://cdn.sqhk.co/xipepovivik/ACCijqh/debegogudugimod.pdfIn PDF document text
    • http://waystep.site/91082376134hymrb.pdfIn PDF document text
    • https://xekanowodupap.weebly.com/uploads/1/3/0/7/130739303/1737909.pdfIn PDF document text
    • http://bupro.asia/vevarilubojaratc2auc.pdfIn PDF document text
    • https://cdn.sqhk.co/nomazotesi/1EPZ0TA/wwe_network_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvexudid/gfCig8K/dazaba.pdfIn PDF document text
    • http://tryporte.xyz/dish_hopper_with_sling_upgrade_cost53frx.pdfIn PDF document text
    • https://wumupokurura.weebly.com/uploads/1/3/0/7/130776197/dulujadawasafikolite.pdfIn PDF document text
    • https://cdn.sqhk.co/bibobovezave/7pjegif/souzasim_moped_edition_no_ads.pdfIn PDF document text
    • http://capridigi.com/intro_maker_mod_apk_tanpa_watermarkeyziq.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/kulinisokakewi/lavapabozu.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_off0000e444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE444 5488 bytes
SHA-256: 6de3bb658ffda0b20b3f5c4c88b12ad662fd276933cb0e9a58563b4110516b60
font_01_sfnt_off0000f6e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6E8 11812 bytes
SHA-256: d1129890c7d66929b8b39a054684f46e624b91ab8d636c183d2b1155a55a551c