Malicious PDF — malware analysis report

Static analysis result for SHA-256 705aa529cfbd94e6…

MALICIOUS

PDF

90.4 KB Created: 2021-03-05 05:04:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: dc89f0a28c35237508b9364c79954f5f SHA-1: 829f4141fe60b762be190d9962d3082158af8958 SHA-256: 705aa529cfbd94e620cdcfa52c88e9cf1276d582794b354ea7a65a4014db1787
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though partially corrupted, suggests a lure related to an ice cream maker manual, which is a common tactic for phishing or malware distribution. The presence of multiple external URLs indicates an attempt to redirect the user to malicious sites.

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://nipisod.ru/award?keyword=hamilton+beach+68330n+4-quart+automatic+ice-cream+maker+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369493/normal_602b7df7294c2.pdfIn PDF document text
    • https://cdn.sqhk.co/fefowofuk/cjf7hdx/yellow_craft_foam_roll.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402507/normal_600bab10d978a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369651/normal_5fd6374a9b526.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417530/normal_5ff8be69a4575.pdfIn PDF document text
    • https://cdn.sqhk.co/kabawamurelo/f9gficJ/md_anderson_careers_benefits.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475391/normal_5fcd7180a4c77.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496571/normal_60031b6f1e53e.pdfIn PDF document text
    • https://cdn.sqhk.co/xogodapap/ggbKidB/donesibusamerufilazevip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375197/normal_5fe7006454dc4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408706/normal_5ffe46fc61ad6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368746/normal_5fc825d13abfd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457279/normal_5ff28bc7e4d9f.pdfIn PDF document text
    • https://cdn.sqhk.co/gusiloxi/fhc4Tnj/panda_express_store_number_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405206/normal_6015e65af12fa.pdfIn PDF document text
    • https://cdn.sqhk.co/nozedimasav/Lidjbhf/carlcare_uganda_address.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403117/normal_5fd04fbe57e71.pdfIn PDF document text
    • https://cdn.sqhk.co/furabafezuse/fAjghcZ/28907968357.pdfIn PDF document text
    • https://cdn.sqhk.co/zekafomaze/gcVs6hf/free_cabinet_design_software_cnc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bd4f7af-c263-4c84-b14c-33afebcbe27c/delta_adley_crib_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b37e6865-db66-4953-82d8-c74430c8e3f6/the_lorax_and_sustainable_development_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5bca6ac-1369-4602-8e64-d390d046e015/el_nombre_de_la_rosa_pelicula_personajes_principales.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9ff4fc5-6330-4f89-9521-bba957e4f3c0/99441439870.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7545f903-7b22-4554-837e-ae6de250f5e0/25925365480.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_off000122c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122C1 5924 bytes
SHA-256: 67dab8fdbce381a4f57a03feb0e7988a074205178e9ffeb344bb080b64650ab7
font_01_sfnt_off000136cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136CD 10576 bytes
SHA-256: f82103b14e529d4de1db3b0efc4e9195bf9d160f542d6472c211bcd1acb5719d

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