Malicious PDF — malware analysis report

Static analysis result for SHA-256 05976f8a0e3a92c0…

MALICIOUS

PDF

80.8 KB Created: 2021-03-01 18:35:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8db7697a6f1a6e46e639e946849f0e19 SHA-1: 396f758639b3bba9831e3c48daff29a4b2ebacf8 SHA-256: 05976f8a0e3a92c0cd0ee879d8372f4fbdc4b7f6b6dc82d21cfd5c74e46ced67
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • 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://pelibifir.ru/award?keyword=99+names+of+allah+pdf+english PDF link annotation
    • https://zorusijumabek.weebly.com/uploads/1/3/4/8/134851431/6081607.pdfIn PDF document text
    • http://axecheat9.xyz/ffx_first_blitzball_game_guide1hrfb.pdfIn PDF document text
    • http://trynon.xyz/adobe_flash_player_android_mozilla_firefoxjgdjl.pdfIn PDF document text
    • http://vekisonoloze.sportsontheweb.net/fundamental_physics_halliday_10th_edition.pdfIn PDF document text
    • https://figiroxofidun.weebly.com/uploads/1/3/0/7/130740151/geviv-funekegili-tuwasu-kokovakerid.pdfIn PDF document text
    • https://worijuxadije.weebly.com/uploads/1/3/4/8/134863955/kulozitux-nizogene-jokurekilujex.pdfIn PDF document text
    • https://cdn.sqhk.co/vopofuxo/jeBkidZ/wazixemefeloti.pdfIn PDF document text
    • https://dugaposiga.weebly.com/uploads/1/3/4/8/134857723/59914.pdfIn PDF document text
    • http://starkrobotics.org/8898556927715rxa.pdfIn PDF document text
    • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/5816933.pdfIn PDF document text
    • http://harmony-market.ru/blue_is_the_warmest_colour_booktpc98.pdfIn PDF document text
    • http://voicebftyi.com/what_is_the_definition_of_quality_management_according_to_iso_90003kwwy.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/fogodununejiwakexovox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bitenozof.atwebpages.com/percy_jackson_lightning_thief_book_chapter_2.pdfIn PDF document text
    • http://wugujub.onlinewebshop.net/how_to_install_sena_20s_evo.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_off00010076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10076 5420 bytes
SHA-256: f31ca82ecd9572a7c7ed2f9ae02c484d59a3a0d0557a51ec882d78995465a4f6
font_01_sfnt_off000112c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112C8 10412 bytes
SHA-256: 93231f516014868e9a2005bbb382693d42af950f3a5304464a30fbe69f7b58af