Malicious PDF — malware analysis report

Static analysis result for SHA-256 8babfadad12dfe87…

MALICIOUS

PDF

78.5 KB Created: 2021-04-01 06:05:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: d75dc524ce96a9fca19f758ef88438e6 SHA-1: 5d33cb6e6066e48999fda288ab2ad367f396343c SHA-256: 8babfadad12dfe8794a3c71cb91dfee794a2aff6b18b187604744d143dcaeb13
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, suggesting an attempt to drive traffic to various websites. The presence of multiple unknown URLs and a critical ClamAV detection for 'Pdf.Phishing.Trojan' strongly indicates malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the structure points to a malicious document designed to exploit SEO techniques for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • 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://dugedepap.ru/wix?keyword=ge+adora+potscrubber+manual PDF link annotation
    • http://sopisafexuj.sportsontheweb.net/schwinn_150_exercise_bike_troubleshooting.pdfIn PDF document text
    • https://cdn.sqhk.co/razefudixid/YeMiHij/homescapes_hack_level_60.pdfIn PDF document text
    • https://zewadozodatigi.weebly.com/uploads/1/3/4/3/134337643/rurorajidoz.pdfIn PDF document text
    • http://povulofi.mywebcommunity.org/free_trade_advantages.pdfIn PDF document text
    • https://cdn.sqhk.co/fivuwunar/icniije/spotlight_room_escape_afterlight_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/vabolepibe/PicqL6O/baloviruvo.pdfIn PDF document text
    • https://cdn.sqhk.co/rorazelesu/gfHpnic/92293455987.pdfIn PDF document text
    • http://gepavozo.mygamesonline.org/elastomeric_bearing.pdfIn PDF document text
    • https://nozerazedigil.weebly.com/uploads/1/3/4/3/134309266/vitusozovapimol.pdfIn PDF document text
    • http://nesorus.mywebcommunity.org/il_bestiario_medievale.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://jirabasojexosud.atwebpages.com/pressure_washer_motor_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/39140110455.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/58338674332.pdfIn PDF document text
    • http://vimixof.onlinewebshop.net/33493209856.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/whats_another_word_for_conventional_current.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/6659895912.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/shortage_occupation_list_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/y_combinator_seed_term_sheet.pdfIn PDF document text
    • http://vubelifijam.atwebpages.com/dafotowesepa.pdfIn PDF document text
    • http://bifiwapaz.onlinewebshop.net/what_are_stock_market_hours_today.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_off0000e15f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE15F 5224 bytes
SHA-256: 338495cb745aa5ac0521db9fd8ad392f4bfe2bbd0ce387bd76ea554ac1bd8f40
font_01_sfnt_off0000f302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF302 12888 bytes
SHA-256: 34ea9e2fc06f7ee9b99a79b1df8a17d006c8129720836a70cbf9e69e11bc0227
font_02_sfnt_off00011cf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CF6 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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