Malicious PDF — malware analysis report

Static analysis result for SHA-256 d820b2f91d9db587…

MALICIOUS

PDF

81.6 KB Created: 2021-03-28 23:12:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 668bbf3aed309cefe187f712f2956490 SHA-1: 7ea65f9a218a11758d45d9b21e94082741184928 SHA-256: d820b2f91d9db5870b34b8d9057e912e0666f009d4c283001a49a0654308e288
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a site that appears to be a lure, disguised as a search result for 'swtor trooper companions'. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to redirect users to potentially malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/wix?keyword=swtor+trooper+companions
    • http://limuzinof.ru/graficar_funciones_trigonometricas_tangenteb6e3s.pdf
    • http://white-x.fun/torofifavaimbmn.pdf
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdf
    • http://flymoney.net/el_cuadrante_del_flujo_de_dinero_robert_kiyosaki_resumen3alet.pdf
    • https://mapunexi.weebly.com/uploads/1/3/3/9/133999872/sejemazokon_fafoz_ripavovene.pdf
    • https://bigonokefexix.weebly.com/uploads/1/3/4/5/134518339/a83babc14b82c7e.pdf
    • https://sotugenedoximo.weebly.com/uploads/1/3/4/0/134040923/biwimone-wezakabije-pexati.pdf
    • https://static.s123-cdn-static.com/uploads/4424985/normal_5ff7eda366328.pdf
    • http://persequen.com/vosujen1b7gt.pdf
    • https://static.s123-cdn-static.com/uploads/4383586/normal_5ff8e67151745.pdf
    • http://iranomics.com/ap_world_history_chapter_11_quizsbulu.pdf
    • https://sipovabamekejo.weebly.com/uploads/1/3/5/3/135391609/c5da0a06c4be02b.pdf
    • https://static.s123-cdn-static.com/uploads/4501989/normal_5ff502dff13e9.pdf
    • http://foramodosug.mygamesonline.org/aristotle_eudemian_ethics.pdf
    • https://nibadaxolakawub.weebly.com/uploads/1/3/4/8/134882114/30bd10bf.pdf
    • https://static.s123-cdn-static.com/uploads/4479212/normal_5fe45ba9eb380.pdf
    • https://static.s123-cdn-static.com/uploads/4449779/normal_5ff4152b239d6.pdf
    • http://2022god.com/conjunctions_worksheets_with_answers2n0hg.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://begafunif.epizy.com/online_share_trading_platforms_nz.pdf
    • http://vugugemo.atwebpages.com/jitunonukixofuxageko.pdf
    • http://gunololidomip.rf.gd/jaxegosolerabodin.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_off00010382.bin
176495d370a41450a9de8c2ca6183ad4d316451bcf55128a61379e2d33302b5c
pdf-font-stream PDF embedded font (sfnt) at offset 0x10382 5240 bytes
font_01_sfnt_off0001154f.bin
a16bca9d7acebe90288abe24b787f3332aabda482547f1bb539a0a35fbb681b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1154F 10492 bytes