Malicious PDF — malware analysis report

Static analysis result for SHA-256 090a024f5ef09d6e…

MALICIOUS

PDF

69.4 KB Created: 2021-02-22 17:15:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9e995cf736bf26a40baa0c41d20e728e SHA-1: c8e968652fab284c2a654db6e443615fd3c9cd73 SHA-256: 090a024f5ef09d6e68c9e4bc94d775cf8a8531868a27d29dfdc5dfb1dd989211
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://jacksth.ru/wix?keyword=aviation+and+the+role+of+government+pdf PDF link annotation
    • http://kuvonej.iblogger.org/12595409879.pdfIn PDF document text
    • http://guvetosufawi.22web.org/hp_pavilion_dv6_3000_service_manual.pdfIn PDF document text
    • https://xotufidew.weebly.com/uploads/1/3/1/8/131856134/mubebobisisuga_viwokaw.pdfIn PDF document text
    • https://japilulijerimu.weebly.com/uploads/1/3/0/7/130738614/xatabajitizug.pdfIn PDF document text
    • https://nesipemuwazona.weebly.com/uploads/1/3/4/8/134881126/rozavidozis_xakofobakan_mureline_zigirivimem.pdfIn PDF document text
    • https://majijajivetik.weebly.com/uploads/1/3/4/2/134265766/zetib.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500450/normal_60091dd4dbdc3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459180/normal_60089d7070da8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452846/normal_5fcbc1395fb76.pdfIn PDF document text
    • https://werirubiteda.weebly.com/uploads/1/3/5/9/135972418/523334.pdfIn PDF document text
    • http://helplnstagram-confirm.com/pirufewigitabalesojufaz8lf6.pdfIn PDF document text
    • https://fonekukiko.weebly.com/uploads/1/3/5/3/135393218/2909495.pdfIn PDF document text
    • http://helplnstagramoffice.com/acca_f9_bpp_revision_kit_2019s7hdo.pdfIn PDF document text
    • https://vokinojen.weebly.com/uploads/1/3/4/8/134851280/3529cf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuposusan.epizy.com/direct_and_bending_stress.pdfIn PDF document text
    • http://pewubep.rf.gd/febutateb.pdfIn PDF document text
    • http://sakupoje.epizy.com/25576896785.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_off0000d505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD505 5328 bytes
SHA-256: e7cba0b54b549f6c4bf797d3ad60668ccd2103635c4ab6f6a0546934fe67b844
font_01_sfnt_off0000e705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE705 9824 bytes
SHA-256: b3342461c01fc24c93b0b8c823b3ae2abc78fdfc49d4c3da71422e6234be47a2