Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaa2634e6fd26199…

MALICIOUS

PDF

65.8 KB Created: 2021-03-07 04:12:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 36b269e4626e0ab85b37235ce1ef8eb7 SHA-1: dea994d90167217f98c2bb3c298ad708f239a410 SHA-256: aaa2634e6fd26199f20902f5831c37e7f98b7c9ddd1d7bac35f7292e27a54ffd
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://lozipotod.ru/wix?keyword=biozone+ap+biology+1+student+workbook+answers PDF link annotation
    • https://zemizipip.weebly.com/uploads/1/3/4/0/134098502/da2fdd1492.pdfIn PDF document text
    • https://zevofukuje.weebly.com/uploads/1/3/4/5/134585027/fcbf086.pdfIn PDF document text
    • https://pefipufipukota.weebly.com/uploads/1/3/4/0/134042651/63156656f746c6.pdfIn PDF document text
    • http://lozuzaragujeb.mypressonline.com/how_to_crochet_a_square_in_round.pdfIn PDF document text
    • http://zisuroto.mygamesonline.org/what_is_the_moca_memory_test.pdfIn PDF document text
    • http://madoxorijegobe.sportsontheweb.net/gipujutizidot.pdfIn PDF document text
    • http://vurovolapoza.mygamesonline.org/how_to_set_up_bowflex_ultimate_2.pdfIn PDF document text
    • https://balejumefem.weebly.com/uploads/1/3/0/8/130814467/9154335.pdfIn PDF document text
    • http://mitutepoka.medianewsonline.com/47586041528.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/bomupi/pa_dot_self_certification_form.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/feedburner_email_subscription_template.pdfIn PDF document text
    • http://nedenapurolaket.rf.gd/dialogue_worksheets_6th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/74991921486.pdfIn PDF document text
    • http://nuwadolonopip.onlinewebshop.net/68378179849.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/cardo_scala_rider_g9_update.pdfIn PDF document text
    • http://fiwujugisijema.epizy.com/fusaperuxufogavivatujuf.pdfIn PDF document text
    • https://s3.amazonaws.com/futamo/gips_compliance_report_example.pdfIn PDF document text
    • http://bifiwapaz.onlinewebshop.net/60970968045.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/jotaxez.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_off0000c3b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3B1 5676 bytes
SHA-256: d27b622b72fd7b43bfeb71e0f1ef6dcee2d7d5ac4c2ec09fa57ca782949d2e9b
font_01_sfnt_off0000d733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD733 10184 bytes
SHA-256: 28aedf6f0236e0a73211f1d3de7773faff24da051243eabe25b8a729bd512ca7