Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c203497587a5b4b…

MALICIOUS

PDF

91.4 KB Created: 2021-06-10 03:27:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b0dc9f101fc8132a5fb7bf0f14d574ca SHA-1: e3de9a57030951a0741ea201d6990f50e0a7e79b SHA-256: 0c203497587a5b4b20fc78515601e5374b0ead49d8077086a01c6479ceeebb8a
186 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which are hosted on disposable domains and appear to be part of a link farm. The document body, though heavily obfuscated, contains text related to 'Cinderella full movie in english 2015 real', suggesting a lure to a malicious website. The presence of numerous external URIs and the ML classifier's high confidence score indicate a malicious intent, likely for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://pixomot.ru/pbw?utm_term=cinderella+full+movie+in+english+2015+real PDF link annotation
    • https://litolojinoforiw.weebly.com/uploads/1/3/4/7/134721995/watexexobizaj.pdfIn PDF document text
    • https://bukufodukowakaf.weebly.com/uploads/1/3/5/2/135294854/b90586a3dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369317/normal_606e50b957c1e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375890/normal_5ff2067f88309.pdfIn PDF document text
    • https://debaduvevuw.weebly.com/uploads/1/3/4/3/134383420/3f14d390e14.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://uploads.strikinglycdn.com/files/89c542ae-733a-4676-a565-7877ec346b79/votipedudunumofukumisan.pdfIn PDF document text
    • http://mikabipi.pbworks.com/w/file/fetch/144432090/dovujupexika.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3cfccde-87d6-404e-980e-9656e09740aa/polycom_soundstation_2_expandable_conference_phone_with_display.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e23f6162-fe33-450e-a468-f00d2e9868cf/sp_netadvantage_industry_surveys.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50299215-2c6a-420d-be57-06b73ee24844/98259505501.pdfIn PDF document text
    • http://raxonepem.pbworks.com/w/file/fetch/144799575/why_does_atticus_say_mrs_dubose_is_brave.pdfIn PDF document text
    • http://fudejob.pbworks.com/f/gizewodi.pdfIn PDF document text
    • http://kepigiwup.pbworks.com/w/file/fetch/144751266/dorian_yates_workout_plan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30728c6f-afee-43bc-9598-46e5b7501190/35969635620.pdfIn PDF document text
    • http://gizonokape.pbworks.com/w/file/fetch/145004580/shadaa_diljit_dosanjh_full_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41499e16-f24a-4d10-841c-729a0d869560/how_to_add_data_labels_in_excel_2016.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5df7b203-0ca0-433d-849e-60b01057778e/39022623887.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ed2fd7b-fd78-46db-b153-4be19e114204/34862722430.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0bfebf3-04fa-4350-9a28-54680b3d3075/jack_lalanne_power_juicer_parts_spout_replacement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c067a26-81bf-4e98-808d-b75336c25b07/thrawn_trilogy_audiobook.pdfIn PDF document text
    • http://dokadeku.pbworks.com/w/file/fetch/144830175/webiz.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_off000118d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D3 5656 bytes
SHA-256: 88158b468886995a727c76fa7286971fee5bdc00f072c27a10f89223182efb86
font_01_sfnt_off00012beb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BEB 11712 bytes
SHA-256: 638cab81a0268aa693293626f25c8500662c7bda97c50bb98166bc84137f979f
font_02_sfnt_off000151fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x151FA 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f