Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0096a0f62605abc…

MALICIOUS

PDF

71.0 KB Created: 2021-02-24 05:25:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1854394ace3f93f4f4d3b9958ebf47db SHA-1: bb79f21b89b3e00be63d71132db4835af111b8b3 SHA-256: b0096a0f62605abcde8f6ada664a8c991b39fdbd95ba4abe65ec258bdf8346bf
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://yafferge.ru/wix?keyword=mary+scott+skincare In PDF document text
    • https://static.s123-cdn-static.com/uploads/4402486/normal_5fcf93bf732d2.pdfIn PDF document text
    • https://cdn.sqhk.co/xojoweva/wgdvght/planet_waves_tru-_strobe_pedal_tuner_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385412/normal_5fcaeeb79fbcd.pdfIn PDF document text
    • https://cdn.sqhk.co/goduwonon/OijjeAS/23293872018.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446259/normal_5fc655d8597f6.pdfIn PDF document text
    • http://inostrana.com/2020_calendar_with_holidayskp5ai.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385228/normal_5fd356b403bed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463824/normal_5fde869f14db6.pdfIn PDF document text
    • https://vurofagulomefu.weebly.com/uploads/1/3/1/4/131452840/jodaxava-litesolijomezog-fewekixabomaweg.pdfIn PDF document text
    • https://cdn.sqhk.co/tosobulig/jdhazha/vasakibevipajarazijo.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/jijd4ih/zatunetolavupimadedizeg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377403/normal_6012d514113d2.pdfIn PDF document text
    • https://cdn.sqhk.co/fifapupifig/hijfhh3/55651890193.pdfIn PDF document text
    • https://cdn.sqhk.co/salasereki/fYfuGnV/54044705584.pdfIn PDF document text
    • https://cdn.sqhk.co/luginuwi/CKThdjc/lethal_performance_labor_day_sale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367013/normal_5fc6149b2afe2.pdfIn PDF document text
    • https://zumaraje.weebly.com/uploads/1/3/0/7/130776401/388120.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413567/normal_5fd2dedc510f1.pdfIn PDF document text
    • https://cdn.sqhk.co/zarepowake/ifgiaie/twisted_root_dallas.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://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_off0000cd9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD9F 4720 bytes
SHA-256: 4518da8e24de8a3f2ced34f60d6912e93fb98e3a0525229694e9bb568405c036
font_01_sfnt_off0000ddbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDBB 10180 bytes
SHA-256: 7d95144c197adc29ffc7b0b6f2bf7d655b344d22583359e81ea9674e44aaeb2d
font_02_sfnt_off00010089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10089 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34