Malicious PDF — malware analysis report

Static analysis result for SHA-256 127b1df7550b9cb7…

MALICIOUS

PDF

83.4 KB Created: 2021-03-21 04:15:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5c6bbce70b360bca99502433e1fe1a96 SHA-1: b8382fea08237d6ce130cc270333ac0f88c15c1c SHA-256: 127b1df7550b9cb7f1cf6dbd51c45648e3cb20798bb6c5ffc0fe102fdea0ef6c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious URL, which is also listed as an IOC. The ClamAV detection and ML classifier strongly indicate maliciousness. The document body, though heavily obfuscated, appears to be a lure for a movie, aligning with phishing or malware distribution tactics.

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://jacksth.ru/strik?utm_term=call+me+by+your+name+full+movie+free+dailymotion PDF link annotation
    • https://cdn.sqhk.co/gukokefa/g2GIdhj/smart_rechargeable_led_bulb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454672/normal_5ff92bf730e0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393358/normal_5fc8b72b308d4.pdfIn PDF document text
    • https://cdn.sqhk.co/dafiwexoki/fvhbhaw/losawalelu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478716/normal_60522e1a4ff88.pdfIn PDF document text
    • https://cdn.sqhk.co/ketejeti/cqEvhdy/dragon_reborn_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wawabosamugo/iPt1fqf/wowelapeniduwulobaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490273/normal_6038e65896aaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445558/normal_5fd171502e037.pdfIn PDF document text
    • https://cdn.sqhk.co/fapolokid/gj1X9jh/96382447914.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369663/normal_6022c129b7602.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://kazuwipumup.epizy.com/proyecto_de_alumbrado_publico_solar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7c5628a-7fbe-40ee-ba0f-ac9cf671b0ca/kofux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e2bf003-7ac7-40df-b7b5-5204eef62b42/how_to_create_a_weight_loss_chart_in_numbers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/176d6c59-32e7-4859-90ea-633cf7fc5cb4/warhammer_fantasy_faction_quiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88c72f11-4c7a-4b0e-88bb-77a76864b3df/how_much_is_a_flip_phone_at_walmart.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afa62525-e46f-4c32-91d5-cc85cc14afd8/39696081066.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49798fcf-9728-439d-88bc-2c0087e27a8c/56502981083.pdfIn PDF document text
    • http://derijumofode.rf.gd/2010_chevrolet_malibu_problems.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73a1842e-0a7c-4c39-9428-2b77894c2a2d/99600524352.pdfIn PDF document text
    • http://rokabimokow.rf.gd/elementary_introduction_to_statistical_learning_theory.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6c91755-2502-4a43-bcd4-c456a291235f/husqvarna_yth_150_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3544acea-60e1-4376-95e9-6a9f383367db/pavozarabipuperi.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_off0000fad4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD4 5084 bytes
SHA-256: 54a1db93ad21eeda5b8498c6eac1b1d7676e7ea5e1bf1900ef402baa5cf599da
font_01_sfnt_off00010c12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C12 10884 bytes
SHA-256: 4d9a37aa735830874ec9d032638c43ef28db8e862abf8d6d740fb21b442156ff
font_02_sfnt_off0001310d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1310D 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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