Malicious PDF — malware analysis report

Static analysis result for SHA-256 713a0ffc8686d642…

MALICIOUS

PDF

118.4 KB Created: 2021-03-20 09:35:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 6625e419e323d8b7ac782bf833cddaf5 SHA-1: 7ae15aceadf59cdae7f0258fdb0de2203285cb1d SHA-256: 713a0ffc8686d6427d9df71aa7a9736813d077df871a8e48651293e1295858dd
96 Risk Score

Malware Insights

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

The file was identified as malicious by a machine learning classifier and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body is heavily obfuscated, suggesting an attempt to hide its malicious intent. No scripts were extracted, but the presence of an external URI strongly indicates a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jumiwimov.ru/strik?utm_term=what+are+the+seven+sins+listed+in+the+bible PDF link annotation
    • https://zegasapazenavu.weebly.com/uploads/1/3/5/3/135326880/xafojus_novapuwepusu_febinipopirune.pdfIn PDF document text
    • https://sodefabufu.weebly.com/uploads/1/3/4/4/134473286/dirilu_jisox.pdfIn PDF document text
    • https://cdn.sqhk.co/vekokizijam/hGihOoI/truck_wallpaper_android_hd_dark.pdfIn PDF document text
    • https://bolamowoxuwev.weebly.com/uploads/1/3/3/9/133997192/wimosonixegowesonuze.pdfIn PDF document text
    • https://nupewaxupojiga.weebly.com/uploads/1/3/4/0/134042887/saxojizonev_nanovexusuwuf_rutaripasosas.pdfIn PDF document text
    • https://vedewoxid.weebly.com/uploads/1/3/0/7/130738666/8576258.pdfIn PDF document text
    • https://cdn.sqhk.co/mudemodox/hcjjgj8/song_hits_magazine_80s.pdfIn PDF document text
    • https://cdn.sqhk.co/gotofebelu/hdzggYZ/23445212040.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutesilo/fWupnRC/funny_video_download_sharechat_punjabi.pdfIn PDF document text
    • https://cdn.sqhk.co/vitelodikef/hh2gjig/45682495491.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sedowedi/igcse_a_level_physics_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/gazelapedalow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48c8e1f4-bc7c-49b4-a9b7-27b77d1b55b6/my_cloud_home_personal_cloud_storage_4tb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb5d7718-8ea2-4ad9-a1c9-716dc5e7d897/19898633717.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11410860-27c8-4fb9-a5c4-fc8b3a24adca/my_sony_sound_bar_subwoofer_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/sitet.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/17866350475.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f049774-c9b4-4647-a99f-3d7766f78efd/lg_22mp68vq_refresh_rate.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/18753182509.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/anti_tank_guided_missile_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aa6232d-043d-4ae8-855c-74f9b410306f/natunukexiterabejusazen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df5eb2bf-0f1d-4725-b9bd-0569a9085e79/kiwow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/671ae423-6e9f-4475-8f53-a78dae599a4e/boy_scout_store_kansas_city_missouri.pdfIn PDF document text
    • https://s3.amazonaws.com/zibenoroduzuw/wikaxerobim.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00018587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18587 5128 bytes
SHA-256: bcb31a6ee0a0cb514930d56e9fd48add5d1ebc0a9ce04d86801729dc80d77b2c
font_01_sfnt_off000196fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x196FB 17196 bytes
SHA-256: 03ecef96302e03c70829a93852e458c37e134c572c6142c53176e20e71e8246c

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