Malicious PDF — malware analysis report

Static analysis result for SHA-256 6abb612021c1f56a…

MALICIOUS

PDF

70.8 KB Created: 2021-02-09 07:23:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 50dd26e05711986e932da08f93e09eb8 SHA-1: 48a0fb3a7dc50c08c44c38d040b8640088775a42 SHA-256: 6abb612021c1f56ab936efc99f11e8f8d8af6187768b3bbc9af7ab4bdd1b6a98
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/123?utm_term=verismo+coffee+maker+manual PDF link annotation
    • https://cdn.sqhk.co/numanazolov/ifElhgy/european_battles_19th_century.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448347/normal_5fd7bf8f81897.pdfIn PDF document text
    • https://jokiwuruxuwam.weebly.com/uploads/1/3/1/4/131437523/5414889.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387226/normal_5ff7ac731b3a8.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/giijjfJ/naam_apna_song.pdfIn PDF document text
    • https://fatomomome.weebly.com/uploads/1/3/1/6/131606630/fotex.pdfIn PDF document text
    • https://cdn.sqhk.co/momogajopi/jjglgdw/hay_day_cheats_free.pdfIn PDF document text
    • https://pegavuvusejeda.weebly.com/uploads/1/3/1/4/131483027/056848.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwolegu/hfJIg6w/blue_balloon_flowers_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/wubunepan/w4TsAih/18012183518.pdfIn PDF document text
    • http://ulekschool.online/tabodingv35u.pdfIn PDF document text
    • https://cdn.sqhk.co/bidogefapo/hecih7K/43248908662.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464522/normal_5ff9023f4c37a.pdfIn PDF document text
    • http://help-ruleviolation.com/tofedea2h8f.pdfIn PDF document text
    • http://1green.space/17757648998hjmp8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000da6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6A 5056 bytes
SHA-256: 081dbfd820d897b3f4e196a93fb287d1c0d34d2f782d8d26311f005d2c3ffb71
font_01_sfnt_off0000eb8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8D 10312 bytes
SHA-256: 4174a123a3a4d13d4c3a110d6bca53a6231d3ba79d612e228cffc88e3d25cc19