Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fc53b0863b23d30…

MALICIOUS

PDF

72.7 KB Created: 2021-03-02 06:19:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 277bd463dffa42aa2454dc93f07b452e SHA-1: 0260992aefdaa7133eb6a112c3ef94c104b5e6a2 SHA-256: 9fc53b0863b23d3072b0ec99667641c7e1c053ec33047530721d9f4d935be42b
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://golowaki.ru/aws?utm_term=2003+ford+focus+service+manual PDF link annotation
    • https://nofuzibid.weebly.com/uploads/1/3/1/4/131453406/8a8cea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381737/normal_602c773d92950.pdfIn PDF document text
    • https://lowonuve.weebly.com/uploads/1/3/4/5/134584544/61dcf5dcc5e7.pdfIn PDF document text
    • http://auto-fishing-rods1.club/nekekokokajezarisovedisaqblcm.pdfIn PDF document text
    • https://cdn.sqhk.co/kopozufu/Q4DDhbm/enerpac_parts_list.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415740/normal_5fe26a1da39dc.pdfIn PDF document text
    • https://kiniwotonupit.weebly.com/uploads/1/3/0/7/130776343/sezegesosa_zulevakado_wiwapejorid.pdfIn PDF document text
    • https://sagelaxun.weebly.com/uploads/1/3/4/5/134594749/8458903c178af4f.pdfIn PDF document text
    • https://cdn.sqhk.co/kunimanujage/fegfijN/22878731922.pdfIn PDF document text
    • https://xogefuvoza.weebly.com/uploads/1/3/2/3/132303221/2166105.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450003/normal_6023e7d830952.pdfIn PDF document text
    • https://cdn.sqhk.co/bomumuxa/j6ijjif/pakejuvupidewasizugiguwa.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/ie7gehc/xuzijiliwekovu.pdfIn PDF document text
    • http://xtrading.buzz/hollard_funeral_cover_brochurefwose.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/jatu5jc/25862084468.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/varolexexus/affidavit_of_support_poverty_guidelines_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/ma_pass_movie_in_300mb.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/wodunuwofizigutibok.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_off0000dfab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAB 5568 bytes
SHA-256: ce8571b262f4686f9905c65956fe8c69b5c874951a1b843bc940e38fe4379271
font_01_sfnt_off0000f286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF286 10264 bytes
SHA-256: 1377b258773c8f9e6d111f3b48b180a4a6f8cb8dcbbd5b68dd4986542ba355f9