Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1e2ddd072bc8bea…

MALICIOUS

PDF

72.0 KB Created: 2021-03-14 00:24:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 8ad8aff56bd1da64db46f53983613c9f SHA-1: 80dc4ff0c70a9b8aacb9486d07d6003036c35dbf SHA-256: e1e2ddd072bc8bea07b199894bf1ed44c9ff69b6a83c2667e2d81e478dd063c7
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection, indicating malicious intent. The document contains numerous embedded URLs pointing to disposable domains and link farms, suggesting a phishing or malware distribution campaign. The presence of external URIs and the classification as a link farm strongly indicate an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://baarspo.ru/123?utm_term=filmywap+2018+punjabi+movies++hd PDF link annotation
    • https://cdn.sqhk.co/gidagolusi/tbUjgFw/xewawer.pdfIn PDF document text
    • http://bbcua.site/how_do_i_put_my_logitech_k400_keyboard_in_pairing_modeoq3fq.pdfIn PDF document text
    • http://logvoz.ru/massachusetts_rmv_accident_reportjvl0y.pdfIn PDF document text
    • https://salufisudad.weebly.com/uploads/1/3/2/6/132695294/dotajexevitunu.pdfIn PDF document text
    • http://jawixogu.mygamesonline.org/ejercicios_92_del_algebra_de_baldor_resueltos.pdfIn PDF document text
    • https://banatili.weebly.com/uploads/1/3/5/3/135314160/kukovuwonosokapedav.pdfIn PDF document text
    • https://cdn.sqhk.co/jexumumir/aigigjP/os_axiomas_de_zurique_minhateca.pdfIn PDF document text
    • https://lugumeduzox.weebly.com/uploads/1/3/0/7/130740149/3689112.pdfIn PDF document text
    • https://kaseledewa.weebly.com/uploads/1/3/2/6/132682802/vexowefirozez-tolazitebepu-kopuxajoxasod-fevofal.pdfIn PDF document text
    • https://vukekitap.weebly.com/uploads/1/3/1/4/131438073/9802279.pdfIn PDF document text
    • http://avtoshkola-region26.ru/58572463371ij4v2.pdfIn PDF document text
    • http://dadivasim.sportsontheweb.net/bedub.pdfIn PDF document text
    • https://cdn.sqhk.co/libewepigux/gcggUgg/canonical_form_database.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/dezavetobafo.pdfIn PDF document text
    • https://cdn.sqhk.co/gixotagokezu/NIHZhbA/civil_war_battle_gettysburg_movie.pdfIn PDF document text
    • http://giwitap.getenjoyment.net/cutting_images_from.pdfIn PDF document text
    • http://gukevipagopu.mywebcommunity.org/soil_mechanics_bm_das.pdfIn PDF document text
    • http://wiwovurezibaso.getenjoyment.net/discrete_mathematics_by_kenneth_rosen_7th_edition_solution_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/jisokemefaz/whenWPs/50145258689.pdfIn PDF document text
    • http://yblda.fun/campbell_biology_11th_edition_with_mastering_biologyar4xz.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwefuxab/NhbdhcQ/82484925418.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://lejiletuvasipib.onlinewebshop.net/batoxuziwo.pdfIn PDF document text
    • http://susabumo.atwebpages.com/rejukadufap.pdfIn PDF document text
    • http://kojuvurapamox.myartsonline.com/dictionary_english_to_tamil_download.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCAE 5852 bytes
SHA-256: 2a2c6457598f06ba2b644238ffa983309822a616f3ebfe38a1b3dc0f9754e70b
font_01_sfnt_off0000e076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE076 10396 bytes
SHA-256: 35f9df6d527e0428f8ed77e1c40cb867938cd8e168a93265adf5eb4595ffa7ec
font_02_sfnt_off00010405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10405 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71