Malicious PDF — malware analysis report

Static analysis result for SHA-256 37926a0bfb596604…

MALICIOUS

PDF

75.6 KB Created: 2021-02-24 04:00:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: fe68592563810c4347ce460f59c2f34c SHA-1: 0cd4938211507f07f49f683c0b12cb737d128130 SHA-256: 37926a0bfb596604f916d4aa545f2f1796135310c1e49992aa10f0788f88b8ee
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wix?keyword=download+gta+apkpure PDF link annotation
    • https://xajevopo.weebly.com/uploads/1/3/2/6/132682124/9158388.pdfIn PDF document text
    • http://alex-chekalev.com/the_top_five_regrets_of_the_dying_freerlhrk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482617/normal_5fd086030b9f5.pdfIn PDF document text
    • https://cdn.sqhk.co/tujuvemevo/39jfijZ/bubidujapafune.pdfIn PDF document text
    • https://risogaruwakev.weebly.com/uploads/1/3/4/6/134634919/nujewanob_runozewegonof_sijikewivise.pdfIn PDF document text
    • https://cdn.sqhk.co/wujamufaw/hi7hgid/telecharger_diskdigger_photo_recovery_android.pdfIn PDF document text
    • http://korsabarca.com/kidotibwa7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390659/normal_60103be87c740.pdfIn PDF document text
    • http://eu-study.ru/sumoloresg59em.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453553/normal_6016c1017b589.pdfIn PDF document text
    • http://ledy66.net/15979469760ps6ox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468530/normal_60226cb53005a.pdfIn PDF document text
    • http://pe50off.pro/foundations_of_materials_science_and_engineering_william_f._smith_javad_hashemia5eef.pdfIn PDF document text
    • https://kaxitojuwomig.weebly.com/uploads/1/3/5/3/135302818/davefoxuzebudigagomi.pdfIn PDF document text
    • https://piborubaladedos.weebly.com/uploads/1/3/4/7/134764427/3664845.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383688/normal_5fe1885032c74.pdfIn PDF document text
    • https://cdn.sqhk.co/lituxopevuk/Yvjgahf/pogikos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413228/normal_5ff4007133762.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_off0000ec13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC13 5104 bytes
SHA-256: 9b6c22ba26a1980b0cd032f84fb2b9551a7828e08c200ded28383c693dd925d0
font_01_sfnt_off0000fda2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA2 10560 bytes
SHA-256: 50bf027768e85e6a2e9f0590edd317ca6c333a05965cec4a31795d6d72dd8395