Malicious PDF — malware analysis report

Static analysis result for SHA-256 77ce60bb37028bf7…

MALICIOUS

PDF

71.3 KB Created: 2021-03-14 02:59:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 568e9b90f50242de648539b1c9366c4b SHA-1: b4ad442fa6420d19a9d8b94306501298993016cf SHA-256: 77ce60bb37028bf70e5e63c0f2ba9a871076b775d0f70be9728989984adf29c7
186 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
  • 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.
  • 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://pelibifir.ru/wix?keyword=bakers+pride+y600+parts+manual PDF link annotation
    • https://tobivuzulukimu.weebly.com/uploads/1/3/1/3/131384599/vegofoxabimalu.pdfIn PDF document text
    • http://muwazowezijowa.22web.org/94727829962.pdfIn PDF document text
    • https://ketesepirexutub.weebly.com/uploads/1/3/5/3/135306065/xugemiderewaf_polopovekufojaw_wubamep_godejuduw.pdfIn PDF document text
    • https://zubikazosiz.weebly.com/uploads/1/3/4/7/134761183/gujodadifisuzegi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421354/normal_6044f4ff34e1e.pdfIn PDF document text
    • https://xexifenenufomag.weebly.com/uploads/1/3/6/0/136082553/gusixexixupux.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497071/normal_5feed21ba6d7f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376875/normal_5fdddf9da5a38.pdfIn PDF document text
    • https://lilufegat.weebly.com/uploads/1/3/5/9/135965666/xozesirokegi_mokafi_sawagiximerove_wukokofadiba.pdfIn PDF document text
    • http://sipamuxagiporen.iblogger.org/junur.pdfIn PDF document text
    • https://gamevuwi.weebly.com/uploads/1/3/4/5/134525912/xevinobexali_lefupid_roxavaluret_bamonamuwakunab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464700/normal_6047e4c8060fc.pdfIn PDF document text
    • https://nixixope.weebly.com/uploads/1/3/0/8/130874324/jazexuwome_wotujuzefoxaf.pdfIn PDF document text
    • http://dugipoxumiku.iblogger.org/85404107297.pdfIn PDF document text
    • http://nuwikivetajed.iblogger.org/joseporixatox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuwosopawekaz.rf.gd/35022341467.pdfIn PDF document text
    • http://damagofozoronu.epizy.com/72972638310.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_off0000d73d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD73D 5616 bytes
SHA-256: d43a40eb858940f46e70d0b09cbe4a289f4c81359656c12bf0bf57faeb26e2f6
font_01_sfnt_off0000ea4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4A 11108 bytes
SHA-256: fdc70601e2f7531c7732ab11b1b75b5e0b5c68a469e20e955d551fc18721df5c

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