Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d7bb7e83d3a53a5…

MALICIOUS

PDF

84.2 KB Created: 2021-04-16 01:35:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d6b9af547b85aa177a9268e79e0d0c54 SHA-1: 5ab7703db2c25be779ef054671267d26b4debe61 SHA-256: 0d7bb7e83d3a53a5338028b56979aae11348593b5fd2d4c48665882423efdcf1
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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 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.
  • 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://bologen.ru/strik?utm_term=1.+what+are+the+top+five+sources+of+stress+in+your+everyday+life PDF link annotation
    • https://rasisepuwefu.weebly.com/uploads/1/3/4/6/134678142/6018512.pdfIn PDF document text
    • http://kirudikegopoded.sportsontheweb.net/jbl_boombox_vs_xtreme_2_specs.pdfIn PDF document text
    • http://zagavexakagin.mypressonline.com/safizaneraz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387825/normal_605a65432286b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501961/normal_6069d50a7bc4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471514/normal_602733db118e6.pdfIn PDF document text
    • https://nasavizar.weebly.com/uploads/1/3/5/3/135322571/vawar_xomakeba.pdfIn PDF document text
    • https://cdn.sqhk.co/moturalogupe/Qichbgi/44744618751.pdfIn PDF document text
    • https://cdn.sqhk.co/nadipozow/jahd23h/smart_pulse_survey_5._5_version_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zojoguxuban/cTDavIN/skylanders_characters_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/damukowabij/eWGjehj/witirizadibozozewareba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445550/normal_6035b0b786fff.pdfIn PDF document text
    • https://nisivijuwowog.weebly.com/uploads/1/3/0/8/130813757/buzisapefo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453332/normal_602efffe1172e.pdfIn PDF document text
    • https://cdn.sqhk.co/livaxipovage/hZv9nDk/zombie_hunter_gun_parts.pdfIn PDF document text
    • https://voxugenones.weebly.com/uploads/1/3/1/8/131871951/6160148.pdfIn PDF document text
    • https://turarizamagux.weebly.com/uploads/1/3/1/4/131453837/aa338a.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/jujojomojemiz/bournside_sixth_form_term_dates.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/zebebelawujabuvupatel.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/anamnesis_psicologia.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/safirejebavemi.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/composite_functions_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/game_changer_book.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/uscg_medical_certificate_status.pdfIn PDF document text
    • http://kibagog.onlinewebshop.net/disipabokuxediroz.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/which_of_the_following_represents_an_empirical_probability.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_off00010754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10754 5484 bytes
SHA-256: 0bca4524a27fd3a47a2cbc06e3022d639be845c04cb1fe114a26c4f408671e49
font_01_sfnt_off00011a1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A1B 11220 bytes
SHA-256: c08651e47c57540a635c9fe7ba5d5c9ff56f37a7948dadf9aa1806be97fb8c0f

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