Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e9436232b28b501…

MALICIOUS

PDF

70.2 KB Created: 2021-04-23 13:24:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bbf49711e954544c4d52f5081bf7271 SHA-1: 16e8dce00022dab3ce1992fdb533f32e9b478a26 SHA-256: 8e9436232b28b5014c5691a8f897cd732ea91c1dca7c737ce902a5a87609da0c
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL `https://zajinet.ru/strik?utm_term=lowrance+elite+7+ti2+eco%252Fgps+touchscreen` suggests a phishing lure related to a product listing. Although no scripts were explicitly extracted, the PDF structure and numerous embedded URLs point towards a phishing or malware distribution campaign, likely initiated via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/strik?utm_term=lowrance+elite+7+ti2+eco%252Fgps+touchscreen
    • http://geesecam.com/bluestacks_free_32_bithp98t.pdf
    • http://mizejodaf.mywebcommunity.org/stock_market_live_graph_today.pdf
    • https://cdn.sqhk.co/jolodovi/hjnFHZa/birarez.pdf
    • http://busibear.com/72440430355sg4c.pdf
    • http://dupamineni.medianewsonline.com/certified_true_copy_stamp.pdf
    • https://cdn-cms.f-static.net/uploads/4390684/normal_605b06d460908.pdf
    • https://cdn-cms.f-static.net/uploads/4384048/normal_606957ffe2ba4.pdf
    • https://cdn.sqhk.co/tamaladafa/gchfibZ/meadow_mini_golf_estes_park.pdf
    • https://cdn-cms.f-static.net/uploads/4488336/normal_600e5b27c034e.pdf
    • http://gopidap.scienceontheweb.net/calefon_solar_inta.pdf
    • https://cdn.sqhk.co/moxinivo/NRBhjcd/barthes_camera_lucida.pdf
    • http://idealicaitalia-official.site/ziminelilos7pnf.pdf
    • https://cdn.sqhk.co/tevunufoba/9zjbn6Z/fun_101_okey_hediye_kodu_2020.pdf
    • http://remontlegko.info/what_are_the_steps_of_the_closing_process_in_the_right_ordero2p0k.pdf
    • http://reestr.site/artculos_de_la_constitucin_mexicana_que_hablan_sobre_la_saludlal07.pdf
    • http://rupaduwovuw.getenjoyment.net/vivokuz.pdf
    • http://rusherx.studio/32743512787buben.pdf
    • http://repair-kvadrokopterov.ru/84501787871aaltz.pdf
    • http://epaytds.xyz/caremark_prior_authorization_form_for_modafinilxqrsg.pdf
    • https://cdn.sqhk.co/bibolaned/ghibRhh/83377835345.pdf
    • http://profaudit32.ru/fafifavoriwavik7qlg.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nogafojomor.onlinewebshop.net/house_of_the_rising_sun_guitar_chords.pdf
    • http://siniligavaxuvul.onlinewebshop.net/twilight_graphic_novel_volume_2_read_online.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d40b.bin
86de4148f99d0c9dab42cf01f1d90c3f0e391a44b46d627ad21ca6693214e6f6
pdf-font-stream PDF embedded font (sfnt) at offset 0xD40B 5476 bytes
font_01_sfnt_off0000e6cb.bin
9cfa4221716991a25138fdb30c1d9c35bc463a0f7e7fd40f872cde8f98677d35
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6CB 10356 bytes