Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab14b06f6a2cfe73…

MALICIOUS

PDF

82.8 KB Created: 2021-03-19 12:03:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3ccbf0664987e816c0e83133060bfa58 SHA-1: b3444e6fc8af30925a00056e29153cb52fdc99b9 SHA-256: ab14b06f6a2cfe73a901eb617e6c5b2a7ec5be383447dc83ecca4d138be609a7
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9994

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/strik?utm_term=mere+christianity+summary+chapter+3 PDF link annotation
    • http://zipafaxelati.sportsontheweb.net/86115758358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408984/normal_604f1fc54842b.pdfIn PDF document text
    • https://xuvajova.weebly.com/uploads/1/3/1/3/131380845/af169c4dc8.pdfIn PDF document text
    • http://gudutisiluzew.mypressonline.com/10897532852.pdfIn PDF document text
    • https://kumojazoj.weebly.com/uploads/1/3/1/3/131381946/fixarugaget_zasezu_pusojuxopu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372373/normal_604cff7a8240d.pdfIn PDF document text
    • http://zobevewobuka.22web.org/michel_foucault_what_is_an_author_modernity_and_its_discontents.pdfIn PDF document text
    • https://dolojimopa.weebly.com/uploads/1/3/4/8/134887070/6183631.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490746/normal_604623690e4eb.pdfIn PDF document text
    • https://vuzipelafow.weebly.com/uploads/1/3/4/6/134688966/9725125.pdfIn PDF document text
    • https://nodepinanobepex.weebly.com/uploads/1/3/1/3/131381288/wexanituvixitito.pdfIn PDF document text
    • http://rulabepotinujeb.mypressonline.com/43828503331.pdfIn PDF document text
    • http://chelamela.org/mapobosulisesogakibarivh0u.pdfIn PDF document text
    • http://xofebuledat.scienceontheweb.net/how_to_reprogram_my_car_starter.pdfIn PDF document text
    • http://omerkatanalp.com/pilgrims_progress_2019_full_movie_download0qdem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385850/normal_60344b4ce050e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389074/normal_5fc90832b6755.pdfIn PDF document text
    • http://gililofus.medianewsonline.com/data_analysis_with_microsoft_excel_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xekazaz.myartsonline.com/30191674719.pdfIn PDF document text
    • http://jawikiluzejibe.epizy.com/eye_of_the_beholder_game_download.pdfIn PDF document text
    • http://suzerukudatede.epizy.com/birarujuwowuruwufup.pdfIn PDF document text
    • http://taweredatupiko.rf.gd/lagu_dj_better_half_of_me.pdfIn PDF document text
    • http://wutesejib.onlinewebshop.net/nozatadikur.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_off0001044f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1044F 5412 bytes
SHA-256: 26f000984af16af4c57a0ebc6bb3388098fb7884951acc1c6c912c57b44fc1dd
font_01_sfnt_off000116a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116A5 11032 bytes
SHA-256: fffbb0b6f0b2fb02ef810eced3e58ddf497b26cb18229db6966a108e5685e9f5

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