Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cb75dd5ff1a2f7a…

MALICIOUS

PDF

80.8 KB Created: 2021-02-28 09:29:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 82e35e48066ec0cf4e1a57d8083175b2 SHA-1: d7b74def1d3421f7408a769adb703a98e91f0636 SHA-256: 9cb75dd5ff1a2f7a0c02d18b95deaf880c176e686c981a4728766451ff49448e
126 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable domains, suggesting an attempt to redirect users to malicious content. The document body, though heavily obfuscated, appears to be a lure related to a 'south lomei labyrinth map solution', likely intended to trick users into clicking the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://fokemale.ru/wix?keyword=south+lomei+labyrinth+map+solution PDF link annotation
    • http://rexevivejegox.scienceontheweb.net/little_fires_everywhere_season_1_episode_4_recap.pdfIn PDF document text
    • https://jivetigaforivuj.weebly.com/uploads/1/3/4/3/134350389/871152.pdfIn PDF document text
    • https://sinekagu.weebly.com/uploads/1/3/4/8/134855021/fulodujika.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482625/normal_6017a66681df4.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/kederagoxovarata.pdfIn PDF document text
    • https://cdn.sqhk.co/fuxilumevo/J5ie5bK/desenhos_para_imprimir_e_pintar_masha_eo_urso.pdfIn PDF document text
    • http://sokegex.mywebcommunity.org/how_much_do_personal_trainers_make_in_canada.pdfIn PDF document text
    • https://likizosuzi.weebly.com/uploads/1/3/4/8/134886942/kagerumeve_kufov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401714/normal_5ff35d7b8bf71.pdfIn PDF document text
    • https://cdn.sqhk.co/mivuxakadu/UhhQL15/indoor_skydiving_miami_beach.pdfIn PDF document text
    • https://cdn.sqhk.co/wamitavixitu/6jgrltt/animal_crossing_like_games_3ds.pdfIn PDF document text
    • https://mudomuroda.weebly.com/uploads/1/3/4/7/134728654/zedunawazobutal-tixovigosinu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475863/normal_5ff60ba88a830.pdfIn PDF document text
    • http://help-copyrighteamservice.com/jifesawavatijafalet23kie.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417653/normal_600d6ca0d61b4.pdfIn PDF document text
    • http://jorowijedo.mywebcommunity.org/jumedidixas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://refusunono.onlinewebshop.net/lifomebasuvawixulazij.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_off0001020b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1020B 5404 bytes
SHA-256: 637192b19e071b2104aa9bd86c408c7ed296541b2254863bdf92300d9ca90ac5
font_01_sfnt_off00011437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11437 9956 bytes
SHA-256: 472b1d66b14c021a8c209e826651dc9234944b8b77dd2ad087a96ec38c106f86

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