Malicious PDF — malware analysis report

Static analysis result for SHA-256 507ef5d29abab468…

MALICIOUS

PDF

89.7 KB Created: 2021-03-10 21:55:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: bc9178be6b891114fb3df9acb8a24217 SHA-1: 118dadd51e2e927b2afcbdd289460e524adcc0bf SHA-256: 507ef5d29abab4685da264d2849d85379e3d9dc00d29dc30bf2da1ce011b8984
234 Risk Score

Malware Insights

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

This PDF document is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing lure. It contains numerous external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body, though partially corrupted, indicates a lure related to a 'Rashtriya khadya suraksha adhiniyam 2020 form', likely a pretext to encourage link clicks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 8

  • 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 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/award?keyword=rashtriya+khadya+suraksha+adhiniyam+2020+form+pdf+download PDF link annotation
    • http://fajamad.mypressonline.com/maropoxumaganufeje.pdfIn PDF document text
    • http://beach-fruit.fun/what_is_the_gpa_requirement_for_mcgill_university2j98r.pdfIn PDF document text
    • http://creditreportusa.info/5834993398543bzf.pdfIn PDF document text
    • http://byt-upak.ru/palladium_rifts_miniaturesx6uwu.pdfIn PDF document text
    • https://cdn.sqhk.co/dodanadofu/MgclDrF/zozinenip.pdfIn PDF document text
    • http://keepxufi.space/rusiwusodigusab859j7.pdfIn PDF document text
    • http://koreanluxe.com/random_things_nature_coremyc30.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/what_is_the_meaning_of_presentation_self.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzonabudad/Tgvu3oS/7600837807.pdfIn PDF document text
    • https://lakizixobatit.weebly.com/uploads/1/3/4/3/134325667/7009771.pdfIn PDF document text
    • https://pudeputuxokaj.weebly.com/uploads/1/3/5/9/135968230/fapero-musur-xikorul-gadupug.pdfIn PDF document text
    • https://fogenidu.weebly.com/uploads/1/3/4/3/134391000/56f2fc9e.pdfIn PDF document text
    • https://ranemexamegen.weebly.com/uploads/1/3/4/4/134440137/954668.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://fb5b3b17-6e6a-47c5-ae49-26eddba71e57.filesusr.com/ugd/aff7be_902638ef69984f1888c8a5f2b1b8d84d.pdf?index=trueIn PDF document text
    • https://4465b75e-e642-4f53-8c89-e22f0b9d4994.filesusr.com/ugd/ecd213_9b5cc8f9464f480bb961b59bcd44e5b8.pdf?index=trueIn PDF document text
    • http://varirojemixu.myartsonline.com/dumezomon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b55de0ca-3eb4-463d-9926-0c3f3e5541df/41516607772.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84388da2-3f71-4da9-8c02-00aa43d588ef/baby_rudin_real_analysis.pdfIn PDF document text
    • https://8d59741e-369e-44be-b01e-8fbcb09d2d01.filesusr.com/ugd/7cefa9_823b5beb8fcb43648e254f3433db23d8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ddbd537-3b98-4134-b0e6-10997ca373c3/dimalato_de_magnesio_beneficios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28d1dfa4-0510-47b8-9867-7c7ca3176623/40324666877.pdfIn PDF document text
    • https://f3ea461b-95fd-44cf-949c-5afda193840f.filesusr.com/ugd/a48928_b7ab27afadca4c0b9c0be97f21c0a548.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a58fec37-29ea-4f90-95fe-c296980504c4/dream_dictionary_app_for_iphone.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED87 5820 bytes
SHA-256: efa48c22714c5b4f5a553423d0a456cff689a2eaed6ec7610dc35c492d464a1f
font_01_sfnt_off00010146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10146 10216 bytes
SHA-256: ca977aee94d0d12bca6480bdf983600f7d04be54524966362185c61700d70cb4
font_02_sfnt_off00012451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12451 16172 bytes
SHA-256: 6e699eab9a6fef16b3ea923df7b93ce1c5cbd97c7a594d359cd98c90be4a35f1
font_03_sfnt_off000139a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139A9 8892 bytes
SHA-256: 4c425cada8045b1dfa215bbc4fdf0b8aeeeabdfd4f162f0f4056a52efbcc6063

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