Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa60ec22858cb36d…

MALICIOUS

PDF

72.7 KB Created: 2021-06-12 04:56:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e75769ed7aa1946e30eecd89cbf3e65d SHA-1: 1d2bc44ff837a351724a88fc6a75949c0d5ac4cb SHA-256: aa60ec22858cb36d47c41399eff9e28591794600cfc8800e487c297f31af43e8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9997

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://crysiq.ru/pbw?utm_term=mkwii+expert+staff+ghosts PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4373509/normal_5fff4ecf94af7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414176/normal_6064f1194170f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462980/normal_5fe1bcb58f151.pdfIn PDF document text
    • https://riwumoba.weebly.com/uploads/1/3/5/9/135965326/24e9f1294e.pdfIn PDF document text
    • https://pevawufanuru.weebly.com/uploads/1/3/7/5/137518929/gumig_bofeboto_jelugom_wesanapigifugez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470402/normal_603c57c3df7e2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449766/normal_5ff7d88b2b263.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488130/normal_604d0823eec06.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4419623/normal_60b4a11b91d1a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403819/normal_5fcd433688665.pdfIn PDF document text
    • https://buwulikifem.weebly.com/uploads/1/3/4/5/134583505/6411439.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375696/normal_5fcc3b1bdf1a6.pdfIn PDF document text
    • https://fewabobur.weebly.com/uploads/1/3/4/7/134713859/modolib_vulut_wuvofomowelav.pdfIn PDF document text
    • https://ruxibudowivuk.weebly.com/uploads/1/3/4/7/134728491/befubitaduwuzaxesawe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474980/normal_6032479fd707d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gegoxelaw.pbworks.com/f/mebalugefatuzuzogumoliw.pdfIn PDF document text
    • http://xeninexiruvo.pbworks.com/w/file/fetch/144832011/the_flu_full_movie_2013_english_subtitle_download_hd.pdfIn PDF document text
    • http://likanegi.pbworks.com/w/file/fetch/144961473/gta_v_free_download_for_pc_compressed.pdfIn PDF document text
    • http://wenitat.pbworks.com/f/long_lachi_mp3_download_song__50____Low__0.pdfIn PDF document text
    • http://negaboxa.pbworks.com/f/defying_gravity_easy_piano.pdfIn PDF document text
    • http://mazibudikor.pbworks.com/f/6688930911.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE068 5360 bytes
SHA-256: bdde35853e42e028e0f1060568524a04e36b8abafd8c0841a981a57cfa50f6a8
font_01_sfnt_off0000f2c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C1 10232 bytes
SHA-256: aec246bead551ca618bccd79332b760a3840ca74e60c83aff009861c517fcd19

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