Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa9b9df6f908d8fc…

MALICIOUS

PDF

74.9 KB Created: 2021-05-08 21:45:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8d5f18f97c310f55bfb4b530ac78f25c SHA-1: 7397fca146987369c2bb1fc7cb2dda1663a3d30a SHA-256: aa9b9df6f908d8fcbbdda981c38beda14d0427dbc02257f0afcfba7fa7c32090
96 Risk Score

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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/strik?utm_term=overcoming+gravity+used PDF link annotation
    • http://samafutanub.mypressonline.com/fosariwiwonelugiviwop.pdfIn PDF document text
    • http://jarevine.mywebcommunity.org/givolubanisazet.pdfIn PDF document text
    • http://liwitesuzemumex.sportsontheweb.net/bsli_wealth_secure_plan.pdfIn PDF document text
    • http://jovefupe.mywebcommunity.org/beowulf_picture_book.pdfIn PDF document text
    • http://sitizinudex.getenjoyment.net/86739482118.pdfIn PDF document text
    • http://tomolijoponix.mypressonline.com/lady_of_the_lake_movie_2019.pdfIn PDF document text
    • http://megidexabaror.mywebcommunity.org/ziveno.pdfIn PDF document text
    • http://jexekiraj.sportsontheweb.net/40282153770.pdfIn PDF document text
    • http://kosamaritaj.getenjoyment.net/85465473292.pdfIn PDF document text
    • http://sabovibin.medianewsonline.com/megagejibetolibabunimo.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/mipizaju/sidixutozesona.pdfIn PDF document text
    • http://sinusudixuxuwad.atwebpages.com/cch_ct_ghp_trong.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/hollow_wooden_surfboard_templates.pdfIn PDF document text
    • http://saxarivoje.onlinewebshop.net/arithmetic_progression_problems.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/rozobinurekoporapa.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/50334994045.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/conjunctive_adverb_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/definicion_de_trastorno_alimenticio.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/vawuloluviwep.pdfIn PDF document text
    • http://rixigor.onlinewebshop.net/black_and_decker_grass_hog_weed_eater_battery.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/education_board_result_2019_marksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/neporezofov/vuwufebinulaminesapazefem.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/tuwivaturaw.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_off0000e4bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BD 5416 bytes
SHA-256: d9648043efa063084b359c7abba417ae7c18eec62a1794da8c095fc50d29bfa5
font_01_sfnt_off0000f71c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF71C 11080 bytes
SHA-256: 94e084e6c87bed71f872039444b77c8ab52be8ea58dd5732dcb4afea27c3f4ee