Malicious PDF — malware analysis report

Static analysis result for SHA-256 68a8a06aab08dcf7…

MALICIOUS

PDF

83.1 KB Created: 2021-03-29 23:32:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 301bbe053fd499c9c24e009dca6104b6 SHA-1: da852ca04ed083b5a8404380a7c77074fbd52a2c SHA-256: 68a8a06aab08dcf73d8820b6d5e1e6f822c77ab617048483c50ad379189fb374
136 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including ML classification and ClamAV detection. The presence of an external URI and a redirector link suggests a phishing or malware distribution attempt, masquerading as a free download. Although no scripts were extracted, the PDF structure and embedded URLs point towards a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/wix?keyword=into+the+wild+jon+krakauer+pdf+francais PDF link annotation
    • https://cdn.sqhk.co/mofisozulud/YRpFb0v/zombie_shooter_pandemic_unkilled_mod_apk_rexdl.pdfIn PDF document text
    • https://cdn.sqhk.co/jawafurovif/ib9x24Z/crossme_nonograms_premium_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kuruwoke/OhbEgcd/aramark_uniforms_sygma.pdfIn PDF document text
    • https://cdn.sqhk.co/lojosewude/ushi6ji/givelizi.pdfIn PDF document text
    • https://cdn.sqhk.co/garoresolif/jhg4lsw/40915660780.pdfIn PDF document text
    • https://cdn.sqhk.co/vujenibolo/jiRdOjj/bmx_bike_racing_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/tivanosox/Dhjgfji/23945638683.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/jeD4wjh/retro_arcade_cabinet_art.pdfIn PDF document text
    • https://cdn.sqhk.co/wofutajo/hhhbhbO/best_android_automation_testing_tools.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzifixe/eq8VRpD/3785284966.pdfIn PDF document text
    • https://cdn.sqhk.co/migefareg/gjYhiib/48678257867.pdfIn PDF document text
    • https://cdn.sqhk.co/vovidonob/qjgjg1C/pozarekozejalonemeve.pdfIn PDF document text
    • https://cdn.sqhk.co/reparepoki/jggeNAq/xobimaxulanubiminarimil.pdfIn PDF document text
    • https://cdn.sqhk.co/naxupowu/GUgju7o/15728499979.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/lorifawuvawot/82956409640.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4e1d06c-94d2-46e1-bafe-780781ea6dd8/what_caliber_is_a_marlin_35.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/mabiwovewozedebo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ca9e556-251d-4e8c-996c-cbb2543d7fbf/falovuzimapoxo.pdfIn PDF document text
    • http://lufogadiza.rf.gd/degegorefin.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/4443375412.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaf1c8d4-fe89-4e64-9eb8-a56d1e170fa9/murder_on_the_orient_express_novel_age_rating.pdfIn PDF document text
    • http://nisuxukiw.epizy.com/aphorisms_on_love_and_hate_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/006a7676-bbae-498c-92f8-f357c7fcfd1e/the_far_side_comics.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/what_is_the_main_theme_of_the_gift_of_magi.pdfIn PDF document text
    • http://jinonepi.epizy.com/general_aptitude_formulas.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/what_is_hardware_based_ray_tracing.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_off0000f6f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F0 5292 bytes
SHA-256: e1bcbb096984e35cf19873a6c676eaa62f35220a4a99a76572cd8c22660a94d9
font_01_sfnt_off000108f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108F5 12112 bytes
SHA-256: d4ce9a910555be04cd8900cdcc48b39f255e5f0068c8a86b133378bf0d35c87b
font_02_sfnt_off00012eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EED 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378