Malicious PDF — malware analysis report

Static analysis result for SHA-256 e079b7f65c0069f3…

MALICIOUS

PDF

82.3 KB Created: 2021-03-14 22:46:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d764a8b30b5088b444c93af36ebcb898 SHA-1: b71e8231e5a731e931154c296e8c0feedab65754 SHA-256: e079b7f65c0069f382c3f5b149a0a2d515039f7c1b5df73d2e495719cc579872
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://nipisod.ru/award?keyword=business+plan+exemplo+pdf PDF link annotation
    • http://kirudikegopoded.sportsontheweb.net/jbl_boombox_vs_xtreme_2_specs.pdfIn PDF document text
    • http://mareson.getenjoyment.net/polarity_of_bonds.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/how_do_i_file_aflac_vision_claim.pdfIn PDF document text
    • http://paxezot.getenjoyment.net/bawulejewitepivofu.pdfIn PDF document text
    • http://pavezala.iblogger.org/48022789934.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483349/normal_5ffff8790b5e6.pdfIn PDF document text
    • http://lozomaneje.getenjoyment.net/uniden_bearcat_scanner_bc145xl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461495/normal_5fccbb0b9df0a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xulodolab.epizy.com/43519201323.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/gijavogugesopizagisis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43f0934f-cdae-431c-bddc-67a025fa8832/98155704313.pdfIn PDF document text
    • http://tesilodapiz.rf.gd/sap_crystal_reports_vs_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6a0709d-feb5-44a1-867c-9f813b26c9bb/real_analysis_krishna_series_download.pdfIn PDF document text
    • http://zupupizejegujun.epizy.com/28197047086.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3fc221a-35f0-4929-89c8-49f3f7adff82/99596631628.pdfIn PDF document text
    • http://lomigibowexalu.epizy.com/fix_the_pumps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2a093ff-321c-44d9-8e1e-6ae11e09f0c8/50424911532.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/how_much_do_white_nike_air_force_1_cost.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bbc410f-2634-4662-9efc-c0919a80f6d4/cpap_philips_respironics_system_one_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec84cda3-0492-4e67-8d78-6b3b8deace41/cmo_tomar_el_vinagre_blanco_para_bajar_de_peso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f1deb75-437c-403e-b80e-f949e2d1449f/oregon_650_vs_650t.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33bf014f-3a99-47f9-92b8-9ec0599ac74e/how_much_should_a_mini_dachshund_weigh_at_16_weeks.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_off0000fa42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA42 5208 bytes
SHA-256: fa9edface361060df2a012ecbe96cd9509566f2b21a8a6cda4f7e69656f1d39c
font_01_sfnt_off00010bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BF0 2448 bytes
SHA-256: fb18ddbd6cee2aaf7dfd9b1844115e93291871ef168f125cd05d4c99464513b5
font_02_sfnt_off0001169b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1169B 10976 bytes
SHA-256: a27687ef4193814b1a8088583a5d5648747f1f99ffa681aab351381ab2f5c301

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