Malicious PDF — malware analysis report

Static analysis result for SHA-256 5015cd4f669fd387…

MALICIOUS

PDF

64.9 KB Created: 2021-02-21 06:38:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8717ed7813df346dd40719cbc3ef0101 SHA-1: edd54592682a32545615e0cbda7f956d54d8f2dd SHA-256: 5015cd4f669fd3877ae801a20b0d6d725aaeb2375fa024a04c44b65dea9c538d
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://crophysi.ru/123?utm_term=the+lottery+by+shirley+jackson+audiobook In PDF document text
    • https://cdn.sqhk.co/gojapawareke/beFjbjb/soccer_kick_game.pdfIn PDF document text
    • https://cdn.sqhk.co/pevelefotuve/jdjahhS/doomsday_movie_dc.pdfIn PDF document text
    • https://gatepeduvemixif.weebly.com/uploads/1/3/4/6/134669895/9311253.pdfIn PDF document text
    • https://cdn.sqhk.co/najiligopej/yijeZVQ/nibokama.pdfIn PDF document text
    • https://cdn.sqhk.co/vimerokil/9ieKbig/chara_deltarune_jigsaw_game_puzzle.pdfIn PDF document text
    • https://fezadegijowazon.weebly.com/uploads/1/3/4/0/134096780/tosudexe.pdfIn PDF document text
    • https://tuzenuzibawura.weebly.com/uploads/1/3/4/7/134733138/53287e3f.pdfIn PDF document text
    • https://welavomuwaj.weebly.com/uploads/1/3/4/6/134633166/18d16a863cade.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417834/normal_6015d50d8db86.pdfIn PDF document text
    • https://cdn.sqhk.co/venitalobeni/nhc7jjh/plants_vs_zombies_play_now_free_no_download.pdfIn PDF document text
    • https://dizogesutupini.weebly.com/uploads/1/3/4/6/134631076/kiduregufadaxajosefe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xubifupi/1078931883.pdfIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/zuzog.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/guvatepogajurulenafas.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/80082056376.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_off0000c231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC231 5356 bytes
SHA-256: b56f99b8bce82f039282f200b72cd93d33130927c3de0817f569839d1b86934f
font_01_sfnt_off0000d465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD465 10172 bytes
SHA-256: 8a724b4a05b94f8226fb7ec0de2780ec7835449873b6e38b2eb49bb0d131247e

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