Malicious PDF — malware analysis report

Static analysis result for SHA-256 da80ccf73e00972b…

MALICIOUS

PDF

71.3 KB Created: 2021-02-26 04:28:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e22ab532d2fc1f187e548b93dd17d994 SHA-1: 6d0d23c6db6c8cee2431d08c32ef724327c905ce SHA-256: da80ccf73e00972b87f52ff4eae323aa53506496cfd21eb46648bdffe4522ff4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/award?keyword=can+you+build+muscle+without+lifting+weights PDF link annotation
    • https://cdn.sqhk.co/gizukakom/hngemif/tuwugisiduwatomipifu.pdfIn PDF document text
    • https://cdn.sqhk.co/gedugari/jge8kij/4538713706.pdfIn PDF document text
    • https://pamigewome.weebly.com/uploads/1/3/4/6/134631685/tosedobakeju.pdfIn PDF document text
    • http://patajafurep.mywebcommunity.org/is_linear_a_good_garage_door_opener.pdfIn PDF document text
    • https://vapaniwagivu.weebly.com/uploads/1/3/4/4/134442769/laxenopisipegopo.pdfIn PDF document text
    • https://cdn.sqhk.co/zoravuzulop/heggXij/classic_metal_finishing_jackson_mi_49202.pdfIn PDF document text
    • http://lupelisizi.medianewsonline.com/shadow_and_bone_netflix_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/mowasikuso/jfgfrjg/64903492648.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://retesatitogeli.epizy.com/48715671441.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/masawobavelesetomukewab.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/bininefulumakudadot.pdfIn PDF document text
    • http://mivezemobopu.rf.gd/how_do_i_get_a_food_vendor_license_in_nyc.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/how_to_unlock_all_factions_in_medieval_2_total_war.pdfIn PDF document text
    • http://viwivebobip.epizy.com/levepepapafutimet.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/animal_4d_pictures.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_off0000da6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6D 5576 bytes
SHA-256: 61c7de1d2af88f4ef7ba35e79d235c615ed105739d3a99d6b9d225ab827f5582
font_01_sfnt_off0000ed5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED5B 10148 bytes
SHA-256: 845960d033aeb11c3e326df70d5eb013af42a92b7c7d079d921badd3ba9b39ae