Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f2c8c0b633cbb12…

MALICIOUS

PDF

78.5 KB Created: 2021-03-07 11:45:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 7320434faee8c6ce4301d2b162a3088d SHA-1: 12638c43e2ee28f813f1743b79045a73a87130d9 SHA-256: 2f2c8c0b633cbb12f0ec2d419916148438a9664361bf65e5b9f6f3ff79d033a3
126 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ML and ClamAV, as malicious and phishing-related. It contains numerous embedded URLs, many of which point to disposable hosting and are designed to redirect users to download sites. The document body, though heavily obfuscated, appears to contain keywords related to software downloads, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://resalured.ru/123?utm_term=mozilla+firefox+48+download+64+bit+filehippo PDF link annotation
    • https://cdn.sqhk.co/komagiju/9Ejgibt/jalofixokakemarolidolosir.pdfIn PDF document text
    • http://present-mag.ru/getdataback_cracked_version_downloadkcmtv.pdfIn PDF document text
    • http://libertinemodels.com/92038869035xijut.pdfIn PDF document text
    • http://inglassrus.ru/717484451fyhuj.pdfIn PDF document text
    • http://sodalabs.club/new_dog_man_book_december_2019oc6n3.pdfIn PDF document text
    • http://dalkomis.website/how_to_insert_references_in_word_using_zotero70b8e.pdfIn PDF document text
    • https://cdn.sqhk.co/vesagivara/ggLibjb/adventures_of_tom_sawyer_book_review.pdfIn PDF document text
    • http://prognoz-football.club/auditoria_financiera_boliviap2dzh.pdfIn PDF document text
    • http://axecheat1.xyz/pokemon_omega_gba_rom_hackxkytd.pdfIn PDF document text
    • https://cdn.sqhk.co/pafevola/gjBxgci/66568340464.pdfIn PDF document text
    • http://dmgameplan.com/fbn_holdings_plc_annual_report9qvja.pdfIn PDF document text
    • http://nesobaka7.xyz/fulaxixu7d7oi.pdfIn PDF document text
    • http://ziwusis.getenjoyment.net/98393339043.pdfIn PDF document text
    • http://dream-stat.ru/joyetech_evic_vtc_mini_no_atomizer_foundoraat.pdfIn PDF document text
    • http://gamuxiwami.getenjoyment.net/beneficios_de_la_lactancia_materna_oms.pdfIn PDF document text
    • http://hargotel.xyz/taworawativana1kqpd.pdfIn PDF document text
    • http://lnstagramsupportlives.com/43237775442lmrq5.pdfIn PDF document text
    • http://missunik.space/usn_body_for_life_training_programy2164.pdfIn PDF document text
    • http://namafafiteg.mypressonline.com/puloda.pdfIn PDF document text
    • http://indohealth365.online/chaar_sahibzaade_a_video_songqtedc.pdfIn PDF document text
    • https://cdn.sqhk.co/numavagoko/gjhgvWZ/sim_sara_is_missing_apk.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://a84030a7-2e48-4039-807a-383e2b7216cc.filesusr.com/ugd/c5d40f_115c574e5ed242eab23fa05f99a19937.pdf?index=trueIn PDF document text
    • https://00407fa8-a9ef-4b78-9bbe-46147fc8acf6.filesusr.com/ugd/5ecadc_ad2d714617c14924b4dedbb447db0659.pdf?index=trueIn PDF document text
    • https://99442e0c-e188-470f-b1e9-a2082f9e7f28.filesusr.com/ugd/2274a7_8fc5869915f34378936cb28061bad8bc.pdf?index=trueIn 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_off0000e831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE831 5532 bytes
SHA-256: da596254c52b0520e086cce9c8431fe2f2ef400c6c3bbb1dd32ca84272dd84cc
font_01_sfnt_off0000fb14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB14 10184 bytes
SHA-256: b8f64c5583c6a4c261260f9bdd9f5a07c733401206cec698f4a0861be1a59ad0
font_02_sfnt_off00011e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E19 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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