Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f043c3e848936f…

MALICIOUS

PDF

72.6 KB Created: 2021-02-22 08:10:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a9f762a8dbfd045ea961587a5634bfb2 SHA-1: 9c148938942ca74f7f057894abeb53f50351b503 SHA-256: e2f043c3e848936ffd406bc7716c0adb8491c6f6bfe583e253c52d11a6daf7af
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://druttle.ru/wix?keyword=normal+distribution+word+problems+worksheet+pdf PDF link annotation
    • https://sulipebi.weebly.com/uploads/1/3/0/7/130739254/5540843.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371783/normal_5ffe828c4e7d3.pdfIn PDF document text
    • https://cdn.sqhk.co/fogibadeku/eZoG3AK/modern_air_power_tips.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456687/normal_600f4cb71ea25.pdfIn PDF document text
    • http://azorocheat1.xyz/the_croods_2_full_movie_free_downloaa1wew.pdfIn PDF document text
    • https://vunufagedumuved.weebly.com/uploads/1/3/4/7/134740761/befudulepezajuwon.pdfIn PDF document text
    • http://bestgirl69.com/composicion_de_las_capas_de_la_atmosferagcsuy.pdfIn PDF document text
    • https://cdn.sqhk.co/tigixexaxi/i9haAhb/vijur.pdfIn PDF document text
    • http://youtube-subscribes.com/noporozokebek22qo.pdfIn PDF document text
    • http://kudretbozaci.com/178035095798l2pv.pdfIn PDF document text
    • https://cdn.sqhk.co/kasesiseb/VuujbgJ/verizon_authorized_retailer_cellular_plus_gillette_wy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369512/normal_5fca391c18121.pdfIn PDF document text
    • http://prodit.space/wafufatoginugifse63v.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370266/normal_5ffc5bd3ec220.pdfIn PDF document text
    • https://wabezapodila.weebly.com/uploads/1/3/1/4/131437306/5750561.pdfIn PDF document text
    • https://velonifiwivuli.weebly.com/uploads/1/3/0/7/130739758/e86313a649bb4.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_off0000df8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF8A 5548 bytes
SHA-256: a6d00c85016f86d2040e8418b2d0366bdc6cac8d259e337d22eb919550794b95
font_01_sfnt_off0000f24b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF24B 10240 bytes
SHA-256: 91579356a57d081fb6dfad6abc619f526f93727f0081b93847df695c13037eec