Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3eac8efd8c6ce9e…

MALICIOUS

PDF

92.1 KB Created: 2021-03-15 02:32:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 04259048435e48bcb1ccce3cf41ecf61 SHA-1: 096b7b30c6831af1b369af8499ea8baf49f8be63 SHA-256: e3eac8efd8c6ce9e9e33cbff3f5ddf479f5c7074870b24f39890c2e8accbbe19
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating it is a phishing trojan. It contains multiple external URIs, including one that appears to be a link farm on disposable hosting, suggesting an attempt to redirect the user to malicious content. The document body, though heavily obfuscated, contains metadata related to 'Vashikaran mantra for love in telugu pdf', indicating a lure to entice users to click on embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/award?keyword=vashikaran+mantra+for+love+in+telugu+pdf PDF link annotation
    • http://sk-anker.ru/45051084393ubxne.pdfIn PDF document text
    • http://bewilotaweje.mywebcommunity.org/english_language_course_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385620/normal_5fe5944f2be52.pdfIn PDF document text
    • http://pofaduxiruk.getenjoyment.net/autocad_civil_3d_exercises.pdfIn PDF document text
    • http://japancar-sib.ru/84681108152ifrhf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467285/normal_603938fa5da99.pdfIn PDF document text
    • http://medway24.com/roughanimator_free_apku66vz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405654/normal_5ff5b47dd4ff4.pdfIn PDF document text
    • http://trysol.xyz/nuxavenekt1k8a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448347/normal_5ff8c85169f3f.pdfIn PDF document text
    • http://nesakud.mypressonline.com/w3schools_angularjs_tutorial_free_download.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://uploads.strikinglycdn.com/files/313c3a5d-4804-4476-95c8-bea247f00ce8/zemudaruvobo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b6c9e16-1332-41da-bdd0-1102cc05c3cc/is_praxis_plt_hard.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02ae9052-137c-4fe5-9c54-44869bc14933/asus_dsl-ac68u_access_point_mode_setup.pdfIn PDF document text
    • http://wutesejib.onlinewebshop.net/vepekomuguwukabobi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6015cff2-d33f-4e34-8f56-5a785a1ecccd/52455374678.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c1a3324-afa0-40ca-a9da-595ce925401d/delaware_series_llc_operating_agreement_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/584f63c6-8432-471b-82f5-c06fa52badab/bajopidadudivuzigupodoro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90614c70-23e8-445c-a7d5-31239731674f/sodastream_source_sparkling_water_maker_kit.pdfIn PDF document text
    • http://zuzopejorexa.onlinewebshop.net/buchungsstze_aufgaben_mit_lsungen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32bae50c-4c4a-436d-94a0-53af7c58c95c/56221779325.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64698181-6701-4ade-8c9d-b99c88075638/vejiwufokovijivoje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4400d89c-8661-41ef-b463-f5b8a208271b/how_to_use_edpuzzle_with_google_classroom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6965f3f8-aa8c-408d-8b5c-64a517c04d6f/how_old_was_hae_min_lee.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_off0000fa75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA75 5544 bytes
SHA-256: 8fe08cf3f8f8d418d1e8444c14c77bb021347e664931cfdee7ded832f953df64
font_01_sfnt_off00010d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D31 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off00011894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11894 12960 bytes
SHA-256: 32094ee5570e7a4c43a09af261c36f88d54ab0eb714a127a76cfcb0b2a5182dd
font_03_sfnt_off0001433c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1433C 8848 bytes
SHA-256: 8ef4bb38ca8bb9360ba9c6cd7ade4d1723f52dd32aefefe3db3f02b8e55d1b15