Malicious PDF — malware analysis report

Static analysis result for SHA-256 9698b9db84fc427b…

MALICIOUS

PDF

76.5 KB Created: 2021-03-27 22:11:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 05e2bca0866c034b3166bed995457f14 SHA-1: 6e280071fdc5db5dc7c07f1f434ab82126eb2274 SHA-256: 9698b9db84fc427bb0e395a3abc36cf0b4b053d6ef46cb1cecc1d709133d46e6
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or credential harvesting scheme. The document body, though heavily obfuscated, appears to contain metadata related to its creation, suggesting it was generated programmatically to host the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/aws?utm_term=what+does+a+client+care+coordinator+do PDF link annotation
    • https://cdn.sqhk.co/lexaxemiji/ujdSthf/math_facts_flashcards_for_1st_grade.pdfIn PDF document text
    • http://kefikajutadab.22web.org/31676307414.pdfIn PDF document text
    • https://cdn.sqhk.co/gadukupuwe/BEhciju/real_tractor_farming_simulator_2018_game_video.pdfIn PDF document text
    • https://cdn.sqhk.co/vakanaju/hhyBiaH/varoziziren.pdfIn PDF document text
    • https://cdn.sqhk.co/sovixojer/ghikibm/55140048816.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427499/normal_6052a49b320d2.pdfIn PDF document text
    • https://cdn.sqhk.co/devisofage/kkqjg9X/30871929600.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480728/normal_604ec58c71647.pdfIn PDF document text
    • https://cdn.sqhk.co/fepefudasor/iedkhgp/goal._com_chelsea_team_news.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/tIT5xha/mediaf_re_minecraft_mods_bedrock.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416125/normal_6008b1b32ecf6.pdfIn PDF document text
    • https://cdn.sqhk.co/sarodeduz/cgdvFmG/idle_makeover_mod_apk_revdl.pdfIn PDF document text
    • https://cdn.sqhk.co/nasubivapu/jcieTha/womens_no_button_cardigan.pdfIn PDF document text
    • https://cdn.sqhk.co/wadupaxi/eGjFogc/al_kahraba_se_com_sa.pdfIn PDF document text
    • https://cdn.sqhk.co/budatumibowu/bMuV7pc/best_2020_albums_hip_hop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/baafc483-6428-460a-bc9a-06622dabd269/telugu_short_stories_with_author_name_and_book_name.pdfIn PDF document text
    • http://wisalawisavu.epizy.com/divorce_papers_template_nj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f07ef7bc-c2a9-49fb-83d1-c849e8d8f648/why_is_my_dyson_v6_animal_not_charging.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ead5735a-b77d-4822-ba4d-1b7ec3cffde8/how_to_write_a_character_analysis_essay.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE42 5040 bytes
SHA-256: 90a02044b10e61d889145b8c60e34f44a3585d7a7be9924cc44266d8378c4d61
font_01_sfnt_off0000ff6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF6A 10576 bytes
SHA-256: bc2308f59b2bc3a2b02db3cfa2c86fc9d7100aca244bcf21bf49115a9d598a89

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