Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae35f01448b87629…

MALICIOUS

PDF

64.6 KB Created: 2021-02-09 20:17:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ffac6394a6bfda1014f7a3f5c44cd49e SHA-1: f7fc126eb1ff1f7846bad61d262046b3f0db1159 SHA-256: ae35f01448b876292019e895ebcb7fe3a90a77590ca9a55ffed0a0d4d5bbbe81
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://jacksth.ru/aws?utm_term=tangiers+shisha+flavor+guide PDF link annotation
    • https://gurawibozogudex.weebly.com/uploads/1/3/0/7/130739732/e739ce495.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485696/normal_5ff54f5e6c883.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486354/normal_5ff4106f27a00.pdfIn PDF document text
    • https://jikujumek.weebly.com/uploads/1/3/5/3/135318263/lerilivo.pdfIn PDF document text
    • http://fesilax.22web.org/bible_study_for_small_groups.pdfIn PDF document text
    • https://nozijuga.weebly.com/uploads/1/3/4/6/134698325/1659327.pdfIn PDF document text
    • https://tapebosipufadiz.weebly.com/uploads/1/3/4/3/134366988/1936670.pdfIn PDF document text
    • http://xonibiz.22web.org/97556027310.pdfIn PDF document text
    • http://ninavadilu.22web.org/68090379994.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xaposekesudonod.epizy.com/xusinag.pdfIn PDF document text
    • http://jujujinoxilumaz.epizy.com/49515525551.pdfIn PDF document text
    • http://wamigogobug.epizy.com/kulefajomixuname.pdfIn PDF document text
    • http://zelogano.epizy.com/android_activity_application_context.pdfIn PDF document text
    • http://novosumagib.epizy.com/62653780887.pdfIn PDF document text
    • http://tolubilusavo.epizy.com/74601125054.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_off0000c18c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC18C 5176 bytes
SHA-256: a14b35542c903e73ccf3ad4ee2083045e970715fb07e055658342f1f7b5b1591
font_01_sfnt_off0000d32d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD32D 10056 bytes
SHA-256: 6bb07bf3cc7ca51c8d8f9b34c29df5f2f219302eb35864ce8467f8673a8ef925