Malicious PDF — malware analysis report

Static analysis result for SHA-256 92d6ea86d31751b5…

MALICIOUS

PDF

77.6 KB Created: 2021-03-04 07:31:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d02c7e5493244a0d876f2943fc12a69b SHA-1: b8ba7ab6c5f120b7059ff09092892ea6a2feedf3 SHA-256: 92d6ea86d31751b5ef3fe41b36b5d9951b99be24b380ac0808d30bfee5969081
104 Risk Score

Malware Insights

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

The file is a PDF document flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an external URI pointing to 'soxebez.ru', which is likely part of a phishing lure. The document body, though heavily obfuscated, suggests a download pretext. No scripts were extracted, but the overall structure and heuristics indicate a phishing attempt to trick the user into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://soxebez.ru/123?utm_term=scansnap+s1500+macos+mojave
    • http://instofficial.online/where_can_i_read_the_trials_of_apollo_online6h5mj.pdf
    • https://pisiteju.weebly.com/uploads/1/3/5/3/135314571/3983109.pdf
    • http://vorecan.space/zutupileri6kq4u.pdf
    • http://trenolgia.buzz/how_to_reset_royal_500dx_cash_registeretjhs.pdf
    • http://top-shop-store.website/present_simple_verb_to_be_worksheetssvl5r.pdf
    • http://kigurumi.org/laws_of_power_bookpqgi6.pdf
    • http://dolinunuridaku.iblogger.org/how_many_atoms_in_a_compound_calculator.pdf
    • http://axecheat9.xyz/binomial_theorem_calculator_with_coefficientswe6gg.pdf
    • https://losuwasujiro.weebly.com/uploads/1/3/1/6/131637226/d5eac191146f3c4.pdf
    • https://levukuwaxumofet.weebly.com/uploads/1/3/1/3/131383949/5781227.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/falevi/sifobobodujoradoxo.pdf
    • http://sefegotanekexe.rf.gd/jagelibomowexiwibezumuji.pdf
    • https://s3.amazonaws.com/rawesaragegugar/boost_converter.pdf
    • http://xorabaza.rf.gd/avengers_endgame_movie_tamil_full_movie.pdf
    • http://lolowavedipugis.rf.gd/bixew.pdf
    • https://s3.amazonaws.com/saziwijaxodav/dodge_charger_2014_user_manual.pdf
    • http://zobovobewuw.epizy.com/diablo_3_gem_farming_guide.pdf
    • http://tiwemevi.rf.gd/fulosigasudapaluxiru.pdf
    • http://kudogal.rf.gd/lava_hd_2605_antenna_manual.pdf
    • https://s3.amazonaws.com/zuguvoxoki/marvel_future_fight_guide_2018.pdf
    • http://sobogewas.epizy.com/hush_hush_book_description.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_off0000eca1.bin
f35ae2ceb1a7408a5843bba91d8d3f121520b69b3ce1bb30a1f7b92b13450f44
pdf-font-stream PDF embedded font (sfnt) at offset 0xECA1 5508 bytes
font_01_sfnt_off0000ff5b.bin
dbb2273c9e00f2a39c55120f9eef8d0b58773408860886273c238c7015cf8ffa
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF5B 14228 bytes