Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7d26f928999ad6c…

MALICIOUS

PDF

80.1 KB Created: 2021-04-15 00:52:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ba6774ecf0245b8bb2024dec7aa3d3e4 SHA-1: 5b4710e90a99a92672e60db496b70391a8b77eaa SHA-256: a7d26f928999ad6cdece4e37d698cf426ae1c49ac666d487116a54bab3010154
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 0.9991

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
  • 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://xezojetit.ru/strik?utm_term=gandhi+jayanti+best+photo PDF link annotation
    • http://hydraruzxpnew4af.exchange/2469737185jzcq7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383795/normal_603e51bbeb2cc.pdfIn PDF document text
    • http://trokot-shtorki.online/nut_hunt_gamex93yw.pdfIn PDF document text
    • http://womenalikumat.22web.org/flyer_template_size_photoshop.pdfIn PDF document text
    • https://cdn.sqhk.co/vagewovupug/VHL9rN0/rureroxoja.pdfIn PDF document text
    • https://cdn.sqhk.co/baxajufim/bx8Apgg/wartide_heroes_of_atlantis_best_heroes.pdfIn PDF document text
    • http://detonicro.website/thanksgiving_2018_deals_spreadsheetly2l6.pdfIn PDF document text
    • https://cdn.sqhk.co/tivanosox/ghavhix/lanaxamigetobevimiliru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482849/normal_5fcd5f7672382.pdfIn PDF document text
    • http://hookup154.online/tabletop_fountain_pumpblxtt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402951/normal_6010e18a8ad93.pdfIn PDF document text
    • https://cdn.sqhk.co/neratimo/e4hbGkR/pacific_wings_switch_review.pdfIn PDF document text
    • http://helps-lnstagramcopyrights-about.com/cardinal_club_portland452np.pdfIn PDF document text
    • http://busowalukifejel.22web.org/nisuvopu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rupiroliwon.epizy.com/managerial_accounting_journal.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/70095250542.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98e03ab5-507b-422e-ba6b-645c2c183c9d/el_pollo_loco_keto_diet.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/oracle_sql_cast_string_to_datetime.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/296da9a6-4b49-46a2-a258-7e74c728e030/scag_tiger_cat_2_52_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb8c3f02-1d39-4314-a313-33abed1c34a5/57341077621.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/49797293116.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45c67ef5-af1c-4baa-864a-410d51854914/85817970103.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f14a495c-cc5c-4768-aeaf-736ad83ba0c9/rapid_city_christian_school_calendar.pdfIn PDF document text
    • http://lipelizirivalul.epizy.com/69486750440.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fafa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAFA 5268 bytes
SHA-256: 3ac3833ea87e5cf967835bc1efbef2d933a294cccb40f21a3e02fb895fd3cb44
font_01_sfnt_off00010ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CED 11076 bytes
SHA-256: be0f9ddddfd14dacf8ff041f0e71f4ed3d6d21357f683abf6a810d56c57bb028

Open this report in the interactive analyzer, or submit your own file for analysis.