Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c71f8f13926f426…

MALICIOUS

PDF

72.2 KB Created: 2021-03-01 09:06:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 94e536fb701a27e65029561954958c12 SHA-1: b44ad0c4655e14b16d441d796941d3ed546df97b SHA-256: 8c71f8f13926f426b6892783ca1306b07559712efb381cde0ef74a4733a08629
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://dugedepap.ru/award?keyword=5e+cleric+spell+list+wikidot PDF link annotation
    • https://cdn.sqhk.co/zebenane/hajdgeE/download_giant._io_uptodown.pdfIn PDF document text
    • http://sozaxesugoj.mywebcommunity.org/48682408177.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471082/normal_5fd6745741839.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465564/normal_602be0a129f8c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408180/normal_5fe5558f36d76.pdfIn PDF document text
    • https://wavujosivisero.weebly.com/uploads/1/3/2/7/132740585/2575806.pdfIn PDF document text
    • https://loxoratas.weebly.com/uploads/1/3/4/5/134507201/63d362ff06ae6.pdfIn PDF document text
    • https://bubamixidik.weebly.com/uploads/1/3/4/6/134657394/ragupovukexa_bubijimesafex_rosej.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390081/normal_5ff426bfc3ed0.pdfIn PDF document text
    • https://cdn.sqhk.co/burajugi/iYhijnI/scary_granny_doll_the_horror_game_videos.pdfIn PDF document text
    • https://bununijadepijag.weebly.com/uploads/1/3/5/2/135298825/d333ce975b4730.pdfIn PDF document text
    • https://pogabivapiz.weebly.com/uploads/1/3/4/3/134327153/c0a4bb137d.pdfIn PDF document text
    • https://nugenezeni.weebly.com/uploads/1/3/4/6/134632238/siwetakasilolitenofu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470683/normal_6003ba007eeec.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/satedafadusizo/63526282611.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/72183873398.pdfIn PDF document text
    • http://luvabokinoleg.onlinewebshop.net/maplestory_secondary_weapon_bis.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF96 5044 bytes
SHA-256: 8121e6c2328a219c1b4cc0dd86b53328fac147340583a68a81e0d1aeabfcade0
font_01_sfnt_off0000f0e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E5 10196 bytes
SHA-256: 9579c7d895e5b22492fe5d871881f703bf16747d97f6df8e08600c1c8f0f323e

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