Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1eea79a2f36564a…

MALICIOUS

PDF

91.6 KB Created: 2021-03-26 10:00:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: c02f9baecc38b216a81251ecb012b49e SHA-1: a935fec49614d04a53063e04eeda642f24c32359 SHA-256: e1eea79a2f36564af4350b42035783ccae5738a89692069c2c76d48793b18bb6
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that likely serves a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The presence of multiple external PDF links suggests a campaign to distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/wix?keyword=angles+in+parallelogram+worksheet+answers PDF link annotation
    • https://cdn.sqhk.co/dutaxato/J5tvzij/xovovopirawulojoduno.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490251/normal_60034145ea0fb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460060/normal_5fd09cbc6b01f.pdfIn PDF document text
    • http://birapemotafew.mygamesonline.org/wiwadub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450724/normal_60283b3a318f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412775/normal_6027cee378c57.pdfIn PDF document text
    • https://cdn.sqhk.co/luwokiseg/jkEa6PB/pasedemibipet.pdfIn PDF document text
    • http://rafupofamurawaf.mygamesonline.org/what_are_the_elements_and_principles_of_sculpture.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479224/normal_5ff276bed1673.pdfIn PDF document text
    • https://cdn.sqhk.co/puwukuwos/OhcjenP/nagosakuxabinamuf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491965/normal_5fe65135e5f89.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488101/normal_5fe56ef37ed8f.pdfIn PDF document text
    • http://najetaxu.mygamesonline.org/buwulovogumikameti.pdfIn PDF document text
    • http://duzusedolatepe.mypressonline.com/baxatavarexavazitor.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483082/normal_600279bd61d28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481272/normal_605b63950c84a.pdfIn PDF document text
    • https://cdn.sqhk.co/tixukiko/T5Qghib/true_skate_free_download_hack_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/eUhdhhN/nidiwatoxixukilekoze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rijemow.onlinewebshop.net/6588802525.pdfIn PDF document text
    • https://s3.amazonaws.com/wanalovum/europass_cv_template_italian.pdfIn PDF document text
    • http://bememikat.onlinewebshop.net/air_pollution_for_evs_project.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/3504158266.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/why_do_stars_appear_to_move_along_arcs_in_the_night_sky.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000112a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112A9 5380 bytes
SHA-256: e94116c9504fc69a99cdfb5727d6d644504cc2170c76f203dd6befa57f8ecf8f
font_01_sfnt_off000124e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124E0 11256 bytes
SHA-256: 936ed1dcbcd06c7fbf68ae26b1eda3589fab521de589f13d00e73416ff16a28e
font_02_sfnt_off00014b89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B89 16072 bytes
SHA-256: 4ce97752c8d1ed0b0302a1507788019c6b738cc3ee96ca273f61f92c287db7cd

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