Malicious PDF — malware analysis report

Static analysis result for SHA-256 b97e62998b5cf09e…

MALICIOUS

PDF

66.2 KB Created: 2021-02-18 08:29:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d1a87d9eee848e3ebaf1c7365cd9edc3 SHA-1: 7ec5865196c0491d5beb96d96842e9c8aa385a94 SHA-256: b97e62998b5cf09e0d72af142225cb43c67a4a19b42e1cfb1578f4408fbdea19
244 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/aws?utm_term=1997+honda+shadow+1100+battery+cover In PDF document text
    • https://static.s123-cdn-static.com/uploads/4490371/normal_5fc7e6d735da8.pdfIn PDF document text
    • https://zamosokajuzosa.weebly.com/uploads/1/3/4/6/134651904/dba576925b56eef.pdfIn PDF document text
    • https://lopuvekire.weebly.com/uploads/1/3/0/8/130813144/mudewot.pdfIn PDF document text
    • https://cdn.sqhk.co/jigidokasaga/Zjc6jjn/russian_police_simulator_mod_apk.pdfIn PDF document text
    • http://7gusevshop.website/ladijofadadikoguxejorep7tlv3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369189/normal_600cf0bceb2d4.pdfIn PDF document text
    • https://vubanuta.weebly.com/uploads/1/3/5/3/135348855/2b7ccb6ec33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409811/normal_60116dd1d7233.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426571/normal_6022264d293e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383136/normal_5fda2aaf31ebd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443824/normal_5ff65ecd72aa4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373304/normal_601b1874a9ebd.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/kovezux/61000304675.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/kikenugeninetuzup.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/23225833915.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_off0000c4b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B5 5724 bytes
SHA-256: 0eee1d8fbb4cc0706a9b6489a2ef37f2d9ad45243fe2b6bd45550d63452d3556
font_01_sfnt_off0000d846.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD846 10440 bytes
SHA-256: 51f28742b2f9cbec3cb45f97d5999eaaefaf8b64a80c4ce494350815e9f0db97

Open this report in the interactive analyzer, or submit your own file for analysis.