Malicious PDF — malware analysis report

Static analysis result for SHA-256 b41601ced138fd09…

MALICIOUS

PDF

80.1 KB Created: 2021-04-18 22:45:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e8fadad28205f32c6bcf91db1668fd87 SHA-1: 7324c7ac4b8275b697c8706ed3d68420af82d1cb SHA-256: b41601ced138fd0965a5e204cc911e96c3a6cca892f0afa697494ed844d28503
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/strik?utm_term=technical+writing+course+online+australia PDF link annotation
    • http://pinegobojefo.getenjoyment.net/quartz_minerals.pdfIn PDF document text
    • http://nudikegavugo.22web.org/lafovozazexazejipoxal.pdfIn PDF document text
    • http://xijowezuxu.iblogger.org/24379737888.pdfIn PDF document text
    • http://mazejofeg.mygamesonline.org/jubojojejaj.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
    • https://s3.amazonaws.com/nafamaragisek/scoliosis_exercises_treatment.pdfIn PDF document text
    • http://lorofamatunex.rf.gd/editing_documents.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93aa6adf-8126-4716-9a70-b1378837434a/nazidopabuzog.pdfIn PDF document text
    • https://8f6f9f04-f977-4239-955d-f6aecf2dd879.filesusr.com/ugd/81cd61_803f437e488f43449b4cc62598184190.pdf?index=trueIn PDF document text
    • http://bozumux.epizy.com/talomiluzasijuriwu.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/60989467222.pdfIn PDF document text
    • http://bapitibob.epizy.com/zoxaxenufigox.pdfIn PDF document text
    • http://lujifexixu.rf.gd/topejejudowobaziletafem.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/88090194051.pdfIn PDF document text
    • http://jabukejezari.epizy.com/gamaruzara.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93b127e6-b0bd-4c03-a2c5-9cd1f04db565/how_to_close_a_polaroid_600_land_camera_model_150.pdfIn PDF document text
    • https://46b09160-81f9-4cb3-9cca-f7b5b0c0229e.filesusr.com/ugd/179cc6_f9c69ddc8f5c4b5e913ae2e862f0d8d8.pdf?index=trueIn PDF document text
    • https://6196a4e6-b3b5-4a85-a139-4ec84e0a53d9.filesusr.com/ugd/d01287_91bc3ef4605b4921aa51202eec11b3ba.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d667c867-0a28-4dde-a2a7-6eddbde75ffa/old_skool_vans_womens_8.5.pdfIn PDF document text
    • http://bekepijamewevo.epizy.com/film_kartun_anak_terbaru.pdfIn PDF document text
    • https://ddb1515c-011f-4d6c-9a6c-b305a2039a85.filesusr.com/ugd/477ac5_d529c3f7ed2446e6b60ffe4f3c4a459a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/lamberghini_song_320kbps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56cb90cb-3183-4213-a17c-18ce36e2efb4/does_iud_cause_bleeding_after_intercourse.pdfIn PDF document text
    • https://s3.amazonaws.com/fexuror/pratidin_newspaper_amravati_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_off0000f08d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08D 4984 bytes
SHA-256: 7089deb44515978db32135b41815fdcbf596969c61927c80d048d01102c6533f
font_01_sfnt_off0001017e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1017E 10296 bytes
SHA-256: 5f330316ea7b03b1bb93c1c7d4fd0e8414f75e462684b7a6c9a9950461f23a5a
font_02_sfnt_off000124ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124AB 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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