Malicious PDF — malware analysis report

Static analysis result for SHA-256 9200622782b9d493…

MALICIOUS

PDF

80.4 KB Created: 2021-03-05 05:05:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: b103a67e73ed59c489ff64102900083f SHA-1: e76c741c3f6430b3843c1bfcd5f91c5459ca50b8 SHA-256: 9200622782b9d493f998ffac3bd9c483f337fdb5496a81e67b0f6ba3eb9e1a7a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many pointing to disposable hosting and employing UTM parameters, indicative of a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with malicious document lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://nipisod.ru/aws?utm_term=tipping+point+definition+francais PDF link annotation
    • https://zipesonavizi.weebly.com/uploads/1/3/6/0/136052153/1322a0da.pdfIn PDF document text
    • http://sosiwawivijomo.scienceontheweb.net/jolejajud.pdfIn PDF document text
    • https://vipofobusaxipol.weebly.com/uploads/1/3/4/2/134234766/00fe52493b.pdfIn PDF document text
    • https://cdn.sqhk.co/vukupamita/hgcpPgj/gevaduzefedusug.pdfIn PDF document text
    • https://fosovumukudire.weebly.com/uploads/1/3/4/2/134235423/xilefubibav_migawedugefixa.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/christmas_carol_video_songs_free_download.pdfIn PDF document text
    • http://nejevefivi.mypressonline.com/79727604487.pdfIn PDF document text
    • https://deriwofapavuz.weebly.com/uploads/1/3/4/3/134311795/sodeduveza-ginimijusa.pdfIn PDF document text
    • https://bigonukoduxa.weebly.com/uploads/1/3/2/7/132741189/girijod.pdfIn PDF document text
    • https://cdn.sqhk.co/sugutomipu/7sJZ3id/short_life_quotes_2020.pdfIn PDF document text
    • http://xunarepozufuz.mygamesonline.org/54783207086.pdfIn PDF document text
    • http://mekujoviwe.mypressonline.com/91771607393.pdfIn PDF document text
    • http://bulubuzigajuzar.getenjoyment.net/best_exercise_program_for_40_year_old_woman.pdfIn PDF document text
    • https://gilurumujeluzem.weebly.com/uploads/1/3/1/8/131857598/gimojojudenipimiro.pdfIn PDF document text
    • https://suzixibaru.weebly.com/uploads/1/3/4/7/134709676/laxarorov.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pogetowem.onlinewebshop.net/naomis_room_book_summary.pdfIn PDF document text
    • http://xemigososefof.atwebpages.com/82163416215.pdfIn PDF document text
    • http://wazinupizut.epizy.com/oxford_dictionary_english_english.pdfIn PDF document text
    • http://gabozimipuz.epizy.com/bivotenibobodenosenuku.pdfIn PDF document text
    • http://forezepolutaju.onlinewebshop.net/dioses_mitologicos_griegos_y_romanos.pdfIn PDF document text
    • http://merixokove.rf.gd/2085072320.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC19 4236 bytes
SHA-256: a3494de5c3a940d1b3e243db29a9c221d02b2fbafaca66fad2db75b127a32d07
font_01_sfnt_off0000fb13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB13 5240 bytes
SHA-256: 3b85a99535ea64f29967daa52c2daa48f3b2d606d8bdf9a2933ca585edf7302c
font_02_sfnt_off00010cfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CFC 12392 bytes
SHA-256: 8bf76f817c9d0db6a3775b6f333720e6b233737c4303c029d651c61b24d056e0

Open this report in the interactive analyzer, or submit your own file for analysis.