Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ee49ba3b98041fe…

MALICIOUS

PDF

83.8 KB Created: 2021-04-06 22:27:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 3338c2407aaf154bb0d78fa81d2b2ef2 SHA-1: 295a776e035f416749978b4edfac1aa1ac7ad526 SHA-256: 7ee49ba3b98041fe2f1baf53941ae1c29f4e3864fb5af50252f7f2a14285a61d
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable hosting or link farms, indicating a malicious intent to redirect users. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely a phishing lure or a distribution point for further malware. The presence of external URIs and the overall structure align with techniques used to redirect users to malicious sites.

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://xezojetit.ru/strik?utm_term=thermomix+indian+cookbook+pdf PDF link annotation
    • https://cdn.sqhk.co/tobipamu/JoU9ibr/pokemon_magikarp_jump_mod_apk_1._3._6.pdfIn PDF document text
    • https://ketezujozak.weebly.com/uploads/1/3/4/7/134744557/tikezimovadev_viwejamimoke.pdfIn PDF document text
    • http://xulodol.mygamesonline.org/physics_project_topics_high_school.pdfIn PDF document text
    • http://liwexun.mywebcommunity.org/53095385110.pdfIn PDF document text
    • https://fijuvosezo.weebly.com/uploads/1/3/4/0/134096395/18740.pdfIn PDF document text
    • https://xobisajak.weebly.com/uploads/1/3/4/2/134234638/93e482cf4.pdfIn PDF document text
    • https://cdn.sqhk.co/pasojixaju/djgB9gF/48532825475.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxuvedije/Y4wOl6M/bubble_pop_electric_gwen_stefani_lyrics.pdfIn PDF document text
    • http://vevaroda.scienceontheweb.net/the_republic_grille_college_station_menu.pdfIn PDF document text
    • http://jaxagogilexet.sportsontheweb.net/mitosowedo.pdfIn PDF document text
    • https://kuzefezatuxiwa.weebly.com/uploads/1/3/4/8/134898449/lewoluzurokojej.pdfIn PDF document text
    • http://miwuzobi.sportsontheweb.net/que_es_lactogenesis.pdfIn PDF document text
    • http://nurokojo.mypressonline.com/49905931469.pdfIn PDF document text
    • http://bulibujirifubof.scienceontheweb.net/13484476743.pdfIn PDF document text
    • https://kujadivenudeku.weebly.com/uploads/1/3/5/3/135324903/2911178.pdfIn PDF document text
    • http://fobexugelego.getenjoyment.net/le_grand_btisier_de_l_histoire_de_france.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://jokajejuti.atwebpages.com/81616049409.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/lenovo_y50-70_ram_upgrade.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/ads_aircraft_design_software.pdfIn PDF document text
    • http://paguxesij.myartsonline.com/motor_vehicle_act_amendment_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/thus_spoke_zarathustra_best_translation.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/the_physiology_of_wound_healing.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB97 5116 bytes
SHA-256: b09da9084e8d3ffd626aaceb47be20d1456899734b805d6d9a1a2400a3183aa2
font_01_sfnt_off0000ecbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECBF 2004 bytes
SHA-256: 35cb21fdb618efd7041eee26779fe95fdf0a80cdc9fe6086b0d69ce776a47990
font_02_sfnt_off0000f655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF655 10976 bytes
SHA-256: 826ca4fecba1c76ee582f0805368f3b04a17d60b0ad4bd2ae30864bfd8963edb
font_03_sfnt_off00011be1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BE1 16312 bytes
SHA-256: aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0
font_04_sfnt_off0001316d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1316D 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176