Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aab70c6cb4454ed…

MALICIOUS

PDF

72.7 KB Created: 2021-02-09 22:54:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 047c996829438827aa6c6ec08b247836 SHA-1: 44b5af91e6180874c3c3287e45538bff3d1514c0 SHA-256: 6aab70c6cb4454ed783bb5aa8662e59bacc9d32c7080cce465c8fb8581865f22
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://bologen.ru/aws?utm_term=zte+axon+7+mini+review+android+authority PDF link annotation
    • https://dolojimopa.weebly.com/uploads/1/3/4/8/134887070/7ba3c74c26.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427780/normal_5fe527e98e266.pdfIn PDF document text
    • http://varietystore.website/honda_gcv160_power_washer_owners_manualyg21o.pdfIn PDF document text
    • http://klokisik.space/golf_hitting_bay_in_garageu26cv.pdfIn PDF document text
    • https://nuresoxak.weebly.com/uploads/1/3/1/3/131380504/40fc04d.pdfIn PDF document text
    • https://nemotepazifoki.weebly.com/uploads/1/3/0/8/130814284/zenuvijedig-maxogelo-pijusuwodakak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467950/normal_5fdd8a3bcd3e7.pdfIn PDF document text
    • http://extrameets.fun/wetavavatolovabubinyxxy.pdfIn PDF document text
    • http://sidanixom.22web.org/22328955899.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448542/normal_601cd04890af0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bubexixan.epizy.com/43344394782.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/bufaliwagow.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/editable_2019_monthly_calendar_template.pdfIn PDF document text
    • http://gobonelore.epizy.com/free_printable_guitar_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/pexexetinasitumekazisa.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_off0000dd10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD10 5216 bytes
SHA-256: 1eef670f146f7d33d32bf2dbb4eafffdac085047815f05b4922b8845b7d915c6
font_01_sfnt_off0000eec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC0 11424 bytes
SHA-256: 5ab1d382ef920e49f2dcb8a3475835623fadc207bca1ff6a480669317330d5cc