Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ea08c38a35512f4…

MALICIOUS

PDF

81.5 KB Created: 2021-04-07 01:09:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 9b546cbe248aa544c79f165f8510769e SHA-1: 3c7b4968377fce81a6f7e302c3b19b54e7bc4f06 SHA-256: 3ea08c38a35512f45cc1608c9bdfe9b50fe12a6b8070b5a362f06545ad03ec62
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains and acting as a link farm, a common tactic for phishing or malware distribution. 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 URL patterns suggest it's designed to redirect users to malicious sites, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • 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.
  • 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://jottigo.ru/strik?utm_term=los+amantes+del+circulo+polar+pelicula PDF link annotation
    • https://talurepif.weebly.com/uploads/1/3/4/6/134603846/zukuj.pdfIn PDF document text
    • https://xorizelipuv.weebly.com/uploads/1/3/1/6/131637744/papojasareta_xisigazasopu_pexixuponipu.pdfIn PDF document text
    • http://requiredjokblog.com/crash_of_cars_onlinesqgvd.pdfIn PDF document text
    • https://robaralimojo.weebly.com/uploads/1/3/0/8/130814718/tosedix.pdfIn PDF document text
    • http://dvestideyli.xyz/the_crown_season_3_episode_7_accuracy9mduk.pdfIn PDF document text
    • http://nosinoski.shop/sofewumezagadelipijugs08g.pdfIn PDF document text
    • http://keksik24.ru/bupulabubovanavekenrosm2.pdfIn PDF document text
    • https://gavokafiwafez.weebly.com/uploads/1/3/1/3/131381231/6616759.pdfIn PDF document text
    • http://shop-you.xyz/vopoxust0sxy.pdfIn PDF document text
    • https://temerineg.weebly.com/uploads/1/3/0/9/130969052/5554486.pdfIn PDF document text
    • http://madewithsunshine.com/54423263600s2389.pdfIn PDF document text
    • http://pestore.pro/is_caffeine_an_ncaa_banned_substancehdlv3.pdfIn PDF document text
    • http://cadenalia.com/prayer_for_your_godchildgerex.pdfIn PDF document text
    • http://idealica-co.site/dukezigitegufiposifolaigxxt.pdfIn PDF document text
    • http://getchambre.xyz/62794012807tfaoc.pdfIn PDF document text
    • http://derifupiwa.mypressonline.com/ruzabunewaledanod.pdfIn PDF document text
    • http://puwinowelin.medianewsonline.com/canon_eos_rebel_t5_manual.pdfIn PDF document text
    • http://duplicwcnj.space/24566459686kndd7.pdfIn PDF document text
    • http://idealica-co.site/the_lightning_thief_booksuhi3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://limazajot.rf.gd/how_to_learn_more_about_the_stock_market.pdfIn PDF document text
    • http://zumijuxuv.epizy.com/switch_pro_controller_blue_light_stays_on.pdfIn PDF document text
    • http://lozepis.epizy.com/40772016715.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/40305596346.pdfIn PDF document text
    • http://fepenupusabumo.rf.gd/wavosezugoju.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_off0000f1bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1BC 5040 bytes
SHA-256: e38010bda120dafc1da18811a10f68f1de753b6d57f22cd6d209579413bc32d7
font_01_sfnt_off000102be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102BE 11536 bytes
SHA-256: 963510731a2d1b0521b644d33aad0b59d8028884240f9354dbcc8cf30d05fccf
font_02_sfnt_off0001286f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1286F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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