Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f165c86438f7658…

MALICIOUS

PDF

209.2 KB Created: 2021-03-14 06:42:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 032186acb672de2dac18a2470c77afd6 SHA-1: 20842687a08300d82b310edc5f90c140873dbf53 SHA-256: 1f165c86438f765855f8496a241bf43969ac842f2d47d9c663368c5cd75c2891
154 Risk Score

Malware Insights

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

The PDF file contains a lure related to downloading the Bhagavad Gita in Gujarati, which redirects to a known malicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the embedded link is the primary indicator of a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9654

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://dafemum.ru/award?keyword=bhagavad+gita+18+adhyay+in+gujarati+pdf+download In PDF document text
    • https://cdn.sqhk.co/dudavizi/eo8jdhd/one_tap_hero_mod_apk.pdfIn PDF document text
    • https://mitewowepo.weebly.com/uploads/1/3/0/8/130813710/4714835.pdfIn PDF document text
    • https://cdn.sqhk.co/retakabif/2JifDgM/12946540674.pdfIn PDF document text
    • https://cdn.sqhk.co/vizodejo/qdoihjj/youtube_tv_app_for_windows.pdfIn PDF document text
    • https://cdn.sqhk.co/mujejadalale/jijdicA/lopupivelukumufuzusinem.pdfIn PDF document text
    • https://tedagenuv.weebly.com/uploads/1/3/2/6/132682668/4555400.pdfIn PDF document text
    • https://bexoxofimimiwox.weebly.com/uploads/1/3/0/7/130775405/gorukupe.pdfIn PDF document text
    • https://vejikawotepux.weebly.com/uploads/1/3/4/8/134887167/xoxasigofowivaro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://c8a164a7-2549-4056-b209-d27d417f800b.filesusr.com/ugd/136d3d_21ca69a6f74c4197ae0dc9486e1479e7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f210523-a0b0-4f8c-aea3-f64cee59d516/73855785019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c309f0cc-e513-4fc6-b4de-13a5690ecd97/ganutaxatetesa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbec4c6a-b95d-4b23-a772-c5fa5a7af978/dabumesapofe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ef2139c-13d7-466c-8822-8b19a6f36782/selidalibajasu.pdfIn PDF document text
    • https://d45380bd-a93d-4ef2-b2bd-4c7806d1f6db.filesusr.com/ugd/5d2cf3_f9f6f7f9ddd545b68ece7fdeb0e1d671.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/06ae3181-5132-4f30-841f-56ac2a2b343b/3116945536.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df4487dd-3657-4406-bc6e-c61d6a9de1ce/tosimageguwinituvunon.pdfIn PDF document text
    • https://680e7e7f-99bb-4309-8a01-ecc910dc7690.filesusr.com/ugd/717a42_c585b5e557184ba0ae03bdb80e505f17.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/853a1160-21c7-44b3-8b0d-25f88d899d57/what_is_quantum_theory_all_about.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a6f89cb-65c1-4254-8f46-60533eaa80ee/64442353166.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c071a02a-c215-4b00-b0d6-8f1fa83227e4/how_to_cite_a_published_interview_in_apa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfb653b8-3bca-4d87-a15e-81165e0fc9a5/photoshop_tutorials_for_beginners_videos_free_download.pdfIn PDF document text
    • https://77da94c0-0f0a-445b-87af-e489a0b5ef66.filesusr.com/ugd/db1da1_b9f2ec7f3e474a35bcf61dd2859cdbb6.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f08ed6ef-e75f-494d-9fc0-21d622eaf790/81905191136.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e46e767e-12bc-4470-9dd5-7b1896cf7cc3/optiplex_7010_i7_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b06bebb1-8d1b-47d0-bed1-f14a3c346f8a/frases_del_prncipe_de_maquiavelo_por_captulos.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002d1b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1B7 5752 bytes
SHA-256: ad73d72e30e2e0e92c340b4d50fb598c0bb37d38ad321c36cd845b1b34f1ebac
font_01_sfnt_off0002e572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E572 3740 bytes
SHA-256: eb903a4bcabb0673128613fc2c6a3b3be6b6be0204d11159aa2f590e1d82ee93
font_02_sfnt_off0002f0eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0EB 15560 bytes
SHA-256: c4ec2d7f9b17a8e78e028b7dafdad4ded7f74afa7d4d92ed733595525f25e060
font_03_sfnt_off00031f54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F54 6320 bytes
SHA-256: 099a4874506b46e89c7ef7e26988635502c8ec0f19d4137407312a952151d171

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