Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2395aee397af502…

MALICIOUS

PDF

79.3 KB Created: 2021-03-10 23:32:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 07e1da90745940b021f04cf0b080e718 SHA-1: 030b9d885a8f36410f5993032636ede6881060e9 SHA-256: a2395aee397af5020298ef9fb97bf1779634e16f28a4a0b6116ce135f98b6005
104 Risk Score

Malware Insights

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

The PDF file contains a link disguised as a software crack download, which is a common phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL points to a domain known for hosting malicious content, likely serving as a downloader for further stages.

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
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://bologen.ru/123?utm_term=chemdraw++full+crack PDF link annotation
    • http://pefipegukanijel.22web.org/champakamala_video_song_free.pdfIn PDF document text
    • https://cdn.sqhk.co/tatogevi/JjabOPP/98993674262.pdfIn PDF document text
    • https://cdn.sqhk.co/sipebililofo/dWV8jdv/nusakuligufazesubofa.pdfIn PDF document text
    • http://manetebanax.22web.org/ejercicios_alcanos_alquenos_y_alquinos_resueltos.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/YahgCjd/vitukezeseluviton.pdfIn PDF document text
    • http://gavepokuni.22web.org/bejuxidem.pdfIn PDF document text
    • https://cdn.sqhk.co/ralapogifur/GugjBhh/wageworks_commuter_benefits_parking.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/dafunifosaresebizoraf.pdfIn PDF document text
    • https://1c684d3d-b1aa-4d58-8f8e-408f9cf37fac.filesusr.com/ugd/64d889_6d0ca6216c224eacb037f2a6fa86008a.pdf?index=trueIn PDF document text
    • https://64db0a9d-d2b7-4705-beb9-75cca7f1d068.filesusr.com/ugd/4c6241_3ac0c4abca8f48f492a8212baae544d6.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wekibik/jorge_luis_borges_ficciones_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/niniwumogazewidevoso.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/xujabimepelutug.pdfIn PDF document text
    • https://7afcd0b8-98df-42a4-afe0-9544d44c9539.filesusr.com/ugd/74e9cf_2f81aed5dbb2400c9cd42da5b8de397b.pdf?index=trueIn PDF document text
    • http://topowurarasixe.epizy.com/nypd_police_accident_report_overlay.pdfIn PDF document text
    • https://aa4c2489-c93b-4667-afab-104bf5323bad.filesusr.com/ugd/8b49c6_12f5744a4eb64806a48f68cb731bd672.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lososimap/milton_hall_primary_school_ofsted_report.pdfIn PDF document text
    • https://2ffa788b-df2f-461f-b9c5-573bec542745.filesusr.com/ugd/374ce0_281314babee44d94b74fc6a9938fd677.pdf?index=trueIn PDF document text
    • http://wukobokako.rf.gd/5e_dm_screen_online.pdfIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/17984263846.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/19573655263.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000e452.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xE452 13928 bytes
SHA-256: 48943741d7cac2a3e64d6574f18d594fdfe450be0ed54555f8e66de5c7fefd51
font_00_sfnt_off0000d2fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2FB 5144 bytes
SHA-256: 1acb103d420d79562665215a77fbcd25b8d642d8d61ecaea36381d783633ac4d
font_02_sfnt_off00010b28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B28 10748 bytes
SHA-256: 64bdbff98b6dfb92a9e950cf9859acd848ea30e7450467164d29bd06aa004633

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