Malicious PDF — malware analysis report

Static analysis result for SHA-256 aec7eabb8deef0d3…

MALICIOUS

PDF

71.3 KB Created: 2021-02-26 06:07:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 86598c5f0bc0f8c910872b1b74e3d234 SHA-1: a3de57fde98d1a0cb37a53cb8945143e6f3f4b2d SHA-256: aec7eabb8deef0d357146c6fde9e8d95a56964417a9e2a9f172895d86f89d414
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/strik?utm_term=2007+dodge+caliber+owner%2527s+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370280/normal_5ff68f4589088.pdfIn PDF document text
    • https://sodukosikel.weebly.com/uploads/1/3/4/5/134598711/ba1b1b16.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387040/normal_600504d9286ee.pdfIn PDF document text
    • https://cdn.sqhk.co/jopubelo/gjgihhd/zakojulilusunaxavolavi.pdfIn PDF document text
    • http://mavigawika.scienceontheweb.net/roxisimudijuradaxuz.pdfIn PDF document text
    • https://cdn.sqhk.co/kufiremikaf/ig6ihjb/61180669236.pdfIn PDF document text
    • https://cdn.sqhk.co/gozawelesutu/ejgiiiW/51150469648.pdfIn PDF document text
    • https://fepagefifumowa.weebly.com/uploads/1/3/2/6/132681901/lodikek.pdfIn PDF document text
    • http://vuvefezod.iblogger.org/what_is_an_example_of_a_hyperbole_in_fahrenheit_451.pdfIn PDF document text
    • http://sixesijilolun.mywebcommunity.org/moto_g_2nd_generation_touch_screen_price.pdfIn PDF document text
    • https://takewinedol.weebly.com/uploads/1/3/4/7/134768260/duwebuvenoxu.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/kirufejowigikavasanu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481988/normal_5fe3a26d54eb1.pdfIn PDF document text
    • https://pidowiwosuzaji.weebly.com/uploads/1/3/0/9/130969191/ravalupamajivik-bamofog-rasolurawirot-gejaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://perinuve.epizy.com/craftsman_2-cycle_mini-tiller__cultivator.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9B1 5784 bytes
SHA-256: 60ac57e46a07a2d2cac0208f7eafdd2bb591f732fa27720ed2c9a8aab69a701a
font_01_sfnt_off0000ed62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED62 10192 bytes
SHA-256: f64644346262d6cf3d435a96049107bd08bf8602355b475c5d3831df93d36a94