Malicious PDF — malware analysis report

Static analysis result for SHA-256 136b766459010af1…

MALICIOUS

PDF

81.8 KB Created: 2021-03-29 00:13:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e916fa1068046b968a8e020cde933dc5 SHA-1: 2f0744046ea80dc25b70db54a494e5a73a8e0b02 SHA-256: 136b766459010af174e8f4e21b83dfb2ff6e3493d334d949e7bbff40fae75348
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'https://ponafet.ru/wix?keyword=avast+key+registration+up+to+2050', suggesting a phishing or malware distribution lure related to software registration. The PDF structure and embedded URLs indicate it's likely part of a phishing campaign, potentially using JavaScript for execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://ponafet.ru/wix?keyword=avast+key+registration+up+to+2050
    • https://static.s123-cdn-static.com/uploads/4448124/normal_5ff52da161771.pdf
    • https://cdn-cms.f-static.net/uploads/4415544/normal_6031015dca0dc.pdf
    • http://lologunaw.mygamesonline.org/walef.pdf
    • http://turuvirele.iblogger.org/fundamentals_of_momentum_heat_and_mass_transfer_5th_edition_solution_manual.pdf
    • https://cdn.sqhk.co/figegixo/aOM9Kig/stranger_things_season_4_hopper_dead.pdf
    • https://cdn.sqhk.co/lebudawojafi/c63hehh/gupizifapib.pdf
    • http://belepebo.mywebcommunity.org/40891503218.pdf
    • http://idealica-columbia.site/an_introduction_to_mechanics_by_daniel_kleppner_and_robert_kolenkowgije5.pdf
    • http://bupro.asia/xunepavifaixt8q.pdf
    • https://cdn.sqhk.co/lofakekaf/9gjbiau/72635735462.pdf
    • http://buyfastedcircle.xyz/easy_keto_breakfast_recipes_ukhxkai.pdf
    • http://pro-konditer.com/equivalencia_neumticos_moto_pulgadas_a_milimetrosgy9ry.pdf
    • https://cdn.sqhk.co/lajakukilo/gjvhhja/78131685498.pdf
    • https://cdn.sqhk.co/nepajenine/40rVLic/classic_movie_collection_dvd_set.pdf
    • https://cdn-cms.f-static.net/uploads/4443810/normal_6023670251b5b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/werowibovezoje/94151237313.pdf
    • https://s3.amazonaws.com/xapota/jigekif.pdf
    • https://s3.amazonaws.com/povodijirig/fugiviwigoferixapatifu.pdf
    • http://bezopiwuzalobit.rf.gd/guide_gnie_des_lieux.pdf
    • http://gevejonitu.onlinewebshop.net/60149643264.pdf
    • http://zufejudo.epizy.com/10459458984.pdf
    • https://s3.amazonaws.com/pekatikisuruki/shahrukh_khan_video_free.pdf
    • http://pavebutom.epizy.com/31776264694.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5b0.bin
8a985da8f2d623a0aa9bc41f788d16bb9aff44a54b499a7cac9cb09d53b1aebf
pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B0 5568 bytes
font_01_sfnt_off000108c9.bin
4cd5680fadba8a523d1e8923e5fbe6ea8b2f8cbae822d801c3f489012d998c85
pdf-font-stream PDF embedded font (sfnt) at offset 0x108C9 21468 bytes