Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbdc6e95c258420b…

MALICIOUS

PDF

75.7 KB Created: 2021-02-20 23:15:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a8694d4f3b256278f57fa42783ce3355 SHA-1: 18647487bb197a0d3e55929941a43b2910a7be9a SHA-256: cbdc6e95c258420be95f7361be4a048b932eee934c0d9093b7b43745003dba3e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/aws?utm_term=inej+ghafa+six+of+crows+fanart PDF link annotation
    • http://giveaway2020.info/47014386180oecwo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382406/normal_5fe730e64707a.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwexosul/icidgcR/soni_t_hegde_wallpapers_hd_4k.pdfIn PDF document text
    • https://cdn.sqhk.co/tovizabep/kjchhXV/67041304088.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423429/normal_6014756fe41bf.pdfIn PDF document text
    • http://vijufik.iblogger.org/runup.pdfIn PDF document text
    • http://apparentlyopt.com/aceite_transmision_manual_jetta_a4k4s22.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367922/normal_600530e14af0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451348/normal_601fdfe998a0d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455377/normal_600468a6f2822.pdfIn PDF document text
    • http://jijufik.22web.org/9892620678.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489994/normal_5ffa1721be154.pdfIn PDF document text
    • https://getenulezawo.weebly.com/uploads/1/3/4/8/134897364/webibibojijapikiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sifebina.epizy.com/xamolapubu.pdfIn PDF document text
    • http://litopuputorer.rf.gd/94068633857.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_off0000ec89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC89 5284 bytes
SHA-256: 1f7664326d974df17a895d911334cef0a7c9da288a12055c62843becc63bb284
font_01_sfnt_off0000fe9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE9A 10380 bytes
SHA-256: 9f6f92db68d50da370608441ea898b955b7832d4fe542c5f54c5351ec48ceaf6