Malicious PDF — malware analysis report

Static analysis result for SHA-256 1470fbd6f8d505e6…

MALICIOUS

PDF

89.5 KB Created: 2021-06-07 10:06:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d8b64d009062859518ab114149fa9061 SHA-1: 24e48a75544b797295d2347454fefe7eb2a88223 SHA-256: 1470fbd6f8d505e663b2b50df0458f25e30d5ebb53016b5a8d16460155eb8601
156 Risk Score

Malware Insights

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

This PDF contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and numerous external URIs suggest an attempt to lead the user to a compromised or malicious web resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://krisoc.ru/wb?keyword=probability%20problems%20with%20solutions%20for%20bank%20exams%20pdf
    • https://mogidudurunupiz.weebly.com/uploads/1/3/2/6/132695636/40713d46a981ae.pdf
    • https://fizozedodid.weebly.com/uploads/1/3/4/4/134484686/kafinifavokozexapisa.pdf
    • https://lodejudimawepum.weebly.com/uploads/1/3/4/3/134350935/rapexenirowex.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/a80024f3-8746-4a21-a07e-cb6194cf9e85/39455673771.pdf
    • http://gamanovu.pbworks.com/f/multi-step_equations_coloring_worksheet.pdf
    • http://sisagexal.pbworks.com/f/what_is_edi_payments_from_amazon.pdf
    • https://uploads.strikinglycdn.com/files/65870db6-fe8f-4827-a103-1179d8fe8557/python_set_difference_vs_minus.pdf
    • https://uploads.strikinglycdn.com/files/c15041ae-1bd5-4a63-94cf-1a3c60f51d97/68281185593.pdf
    • https://uploads.strikinglycdn.com/files/ba2087b9-8169-474e-83c1-afa914eb3901/37176881712.pdf
    • https://uploads.strikinglycdn.com/files/f06928c5-ed8b-4d1a-865c-66560dd19fce/why_wont_my_ps3_controller_work_wirelessly.pdf
    • https://uploads.strikinglycdn.com/files/3ecdf8af-c3ac-42d1-8dbd-5d2c6e9b043d/sword_art_online_alicization_light_novel_volume_18_read_online.pdf
    • http://ziludezubeju.pbworks.com/w/file/fetch/144458421/free_tenorshare_4ukey_license_email_and_registration_code_free_2021.pdf
    • http://gitefov.pbworks.com/f/como_descargar_nexus_para_fl_studio_20_gratis.pdf
    • http://fawugomem.pbworks.com/f/xivomogamabusizi.pdf
    • http://wuxikadafi.pbworks.com/f/botinafiv.pdf
    • https://uploads.strikinglycdn.com/files/ae909fd1-6d04-4797-9671-0140a9db452a/iron_man_glove_template.pdf
    • http://xojifot.pbworks.com/f/niwonazunubuvifuwemod.pdf
    • http://felefejimax.pbworks.com/f/can_you_return_swarovski_in_store.pdf
    • https://uploads.strikinglycdn.com/files/bc8b0be0-9d1e-4c37-acb5-1959f4a571b8/epson_wf_2530_nozzle_check.pdf
    • http://laxaxufudej.pbworks.com/f/which_is_faster_first_order_or_second_order_reaction.pdf
    • http://mizunebapod.pbworks.com/f/instagram_blue_tick_mod_apk.pdf
    • http://foxobekizax.pbworks.com/f/gentle_c-section_birth_plan_template.pdf
    • http://sufizilofab.pbworks.com/w/file/fetch/144681324/how_do_you_tame_a_zombie_horse_in_minecraft_pocket_edition.pdf
    • http://jeveriwilum.pbworks.com/f/99812658971.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010560.bin
7885b2c7081abca3a624b518a817b50a3a9c8acb66eb000a489654b604a39bb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10560 5628 bytes
font_01_sfnt_off00011862.bin
ff5555ebd3a1b656d0e168cbaf29ca915033de1988c0c0bbe338cdd33dd93fe1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11862 2560 bytes
font_02_sfnt_off0001237a.bin
a2e64cf8d5bd7d221865d6619b2915e2b721687cba7b04fa51d6aa8a340ed391		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1237A 11104 bytes
font_03_sfnt_off0001494c.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1494C 4324 bytes

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