Malicious PDF — malware analysis report

Static analysis result for SHA-256 46509096f635638a…

MALICIOUS

PDF

91.1 KB Created: 2021-03-15 01:22:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2dc50ee8ddfa98eea0142d48d57a1718 SHA-1: 9454dafa64b8f8fe7b0a350c4140cd1923cbf29e SHA-256: 46509096f635638a3198d383d9336203115ed14c8d3a228e6f61862bb2464454
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/award?keyword=dead+poets+society+script+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450043/normal_60399b1bec7e3.pdfIn PDF document text
    • http://carbags.site/why_do_i_see_stuff_when_i_close_my_eyesxq42i.pdfIn PDF document text
    • https://cdn.sqhk.co/zijopenuxafi/hhejnFl/darkwing_duck_games_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481825/normal_600c6805d2901.pdfIn PDF document text
    • http://medtechnika1.ru/hinge_theorem_worksheet24hsj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366632/normal_6008301f62fde.pdfIn PDF document text
    • http://help-service-support.com/66058700770hvdqn.pdfIn PDF document text
    • http://tumbochka.space/urban_ninja_warrior_lexington_kye65kr.pdfIn PDF document text
    • https://cdn.sqhk.co/maxevurux/IEmAEif/dead_rain_new_zombie_virus_download.pdfIn PDF document text
    • http://raisinsapp.pro/94642162040mbq38.pdfIn PDF document text
    • http://recepty-dd.info/sigagigosanunavopik9hmh.pdfIn PDF document text
    • http://mybatut.store/stranger_things_font_download_freeff22q.pdfIn PDF document text
    • http://axecheat7.xyz/965671638493e6bt.pdfIn PDF document text
    • https://cdn.sqhk.co/famazipow/ngdjhbT/83629565485.pdfIn PDF document text
    • http://gmetry.online/52011664519gitya.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxedanafowa/Mgjjejg/gidikufubova.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zalisujezajaje/english_comic_book_store_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/grade_9_english_practice_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d41fed1-45c3-4f9b-9b41-b32d57c73a90/42207987725.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07a8afa0-c539-4947-af73-567f6036a4ca/how_to_set_up_blue_clean_power_washer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a473970c-6cd4-4a2e-8487-d87ba5985a53/wudubamuxuwonurerofokux.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/113626663.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/39401971766.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000128b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128B6 5220 bytes
SHA-256: fbcb2543136d8c89f692bf0a02382cc759c48adc036bc1100eed09eeef767e8a
font_01_sfnt_off00013a95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A95 10092 bytes
SHA-256: 585e7c299bb22da22f9d07e21e137b33ac02e7ec4b7c3c25fe2d5b647cabb763

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