Malicious PDF — malware analysis report

Static analysis result for SHA-256 69f29d93e39798e7…

MALICIOUS

PDF

77.6 KB Created: 2021-05-02 12:05:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 394df5ae93f890358b0c93f0837e5667 SHA-1: 4af564de7b093e0e92895c9a815eb1026c2724c2 SHA-256: 69f29d93e39798e7a0134f434001ae33d9e7c4d1704f2564069c6b66d45fa03b
126 Risk Score

Malware Insights

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

The PDF contains numerous external links, many hosted on disposable domains, indicating a link farm or redirection scheme. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The document body, though heavily obfuscated, contains text related to opening files, which is used as a lure to direct users to malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/strik?utm_term=how+to+open+up+wii PDF link annotation
    • http://gutagige.sportsontheweb.net/chuyn_i_file_nh_sang_word.pdfIn PDF document text
    • https://dapevorejux.weebly.com/uploads/1/3/4/6/134695165/wiwomo.pdfIn PDF document text
    • https://pupazugosabi.weebly.com/uploads/1/3/4/8/134868946/5431337.pdfIn PDF document text
    • https://gawakugoful.weebly.com/uploads/1/3/4/7/134757428/toluv.pdfIn PDF document text
    • https://jazelisis.weebly.com/uploads/1/3/4/8/134870131/ba60d.pdfIn PDF document text
    • http://vukagife.iblogger.org/12607488353.pdfIn PDF document text
    • http://jawunefuda.mygamesonline.org/balachandran_chullikkad_kavithakal.pdfIn PDF document text
    • http://duwuzoruperiged.scienceontheweb.net/tibazifobag.pdfIn PDF document text
    • https://pananufizusa.weebly.com/uploads/1/3/4/4/134445813/soforafom-dowasiz-nolikeboxet-diregar.pdfIn PDF document text
    • http://poruzotosiku.getenjoyment.net/58405571122.pdfIn PDF document text
    • http://nomokesus.sportsontheweb.net/96481113284.pdfIn PDF document text
    • http://sijiwepi.mypressonline.com/stannah_lifts_fault_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/xugosovemi/hgidkTz/broken_bones_kaleo_genre.pdfIn PDF document text
    • https://cdn.sqhk.co/pasivuzuke/bgcbgj7/90143416867.pdfIn PDF document text
    • http://poposiruta.mywebcommunity.org/adding_and_subtracting_integers_practice_7th_grade.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vidilig.onlinewebshop.net/10560090594.pdfIn PDF document text
    • http://davinawoguzag.atwebpages.com/85411400022.pdfIn PDF document text
    • https://s3.amazonaws.com/fivebo/converse_plataforma_grises_altas.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/english_movies_with_subtitles_sites.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/basketball_game_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/cable_one_fargo_channel_guide.pdfIn PDF document text
    • http://filogipopema.epizy.com/the_fact_of_blackness_sparknotes.pdfIn PDF document text
    • http://mexefesu.epizy.com/soundpeats_bluetooth_earbuds_review.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_off0000f218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF218 4352 bytes
SHA-256: 1c35df287df38d2225fa95f890ef15a85ad545e516996ce648796fe8d3f65d44
font_01_sfnt_off00010108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10108 11936 bytes
SHA-256: 9a9288e74f207a387ca187391ef65a4451e5d0b70d59860a9d879c8fafff11c9

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