Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4c3fb46d6499a9b…

MALICIOUS

PDF

86.7 KB Created: 2021-04-29 22:22:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 2026164a43a6dbeffdee3110655006ae SHA-1: 25187c961623198d0d2321c91aa2c79504289d07 SHA-256: c4c3fb46d6499a9bc73f14256652401518ec5331f30c8bce40e7e6fbb348e94f
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing page or malware. The document body, though heavily obfuscated, suggests a lure related to 'Pathfinder adventures by location'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/strik?utm_term=pathfinder+adventures+by+location PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4461497/normal_602687061a80d.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/l90igtA/5139807146.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501206/normal_6045118007e2b.pdfIn PDF document text
    • https://cdn.sqhk.co/tedalome/iahb8ia/83546295942.pdfIn PDF document text
    • https://cdn.sqhk.co/nesadatifu/hdjcLjd/bugagulawotigibe.pdfIn PDF document text
    • https://cdn.sqhk.co/gisatajofo/cby0zjd/42074710532.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409000/normal_6024424965d16.pdfIn PDF document text
    • https://cdn.sqhk.co/vegedusovo/iiagc7N/melubegegakerurekajokusob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379032/normal_60318fe7c143f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475853/normal_601d80adcfe0f.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/b99f82a6-ae4a-44c7-99a5-60ab5ebe29e6/the_chosen_one_book_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/samupo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0589ac42-949c-407f-a3fb-6a39c4f5d9e1/62069236955.pdfIn PDF document text
    • https://cae2aa39-5014-47ec-b549-0fed73f36d02.filesusr.com/ugd/c8683e_2ce096ec3a6642a48a262cfe778baaf8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/wobokefegolenisi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5198d80e-1d0d-4474-bfdd-5b4f76d89592/67268979965.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8daa46d-daa7-4a5f-9454-330f414671a4/15610132641.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/is_beats_solo_hd_wireless.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/31616119683.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/what_is_the_meaning_of_elective_lscs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df462097-47a7-48e9-909b-ecca9be4d5e0/what_does_developmental_biology_means.pdfIn PDF document text
    • https://2eda13a9-9e0f-47dd-bbfa-a9a5028a3314.filesusr.com/ugd/61c57f_f3f1768f1c1d47ad81d23600a6604e6a.pdf?index=trueIn PDF document text
    • https://c3373aeb-ed74-4f2d-b631-fa679e0a3f6f.filesusr.com/ugd/cbe7f7_bea21136a37d43d2a168cb80270bb2aa.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC71 5412 bytes
SHA-256: 6c6a887fc7bbf1020bfd5232efda8fc919472775de84a5b0354114fadfd73b47
font_01_sfnt_off00010ee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE1 12344 bytes
SHA-256: f9cdb583f31a7a63beae0597276e091c4cdbdd09f9eb96f2e129a6e14ae42cad
font_02_sfnt_off0001373c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1373C 16344 bytes
SHA-256: dc620336aa769c766927a552749f6283a30952bf3238451f386faf844582b0a6

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