Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cce6b43f4304785…

MALICIOUS

PDF

159.5 KB Created: 2021-04-21 07:57:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 539d7d965021e8caca536d7c1deccac3 SHA-1: 7873446acb3436b4d9b8795e94875bccd257f7f3 SHA-256: 3cce6b43f4304785a64ef71e3332b85ce8ef0f476f42bdc1f97b903041de803c
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document exhibits characteristics of an advance-fee scam, indicated by heuristics related to lottery or parcel delivery lures. It contains an embedded external URI pointing to a URL that appears to be part of the scam infrastructure. The ML classifier strongly flagged this PDF as malicious, and ClamAV also detected it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://pelibifir.ru/strik?utm_term=jack+reacher+2016+movie+flix
    • https://cdn.sqhk.co/reriwoduriju/Xpg4gdY/dragon_robot_car_game_robot_transforming_games.pdf
    • https://faxarumi.weebly.com/uploads/1/3/1/6/131606834/4039026.pdf
    • https://cdn.sqhk.co/kososojog/IVCyChd/88210417554.pdf
    • https://cdn.sqhk.co/lolajelor/hjeImjb/74018898485.pdf
    • https://cdn.sqhk.co/kuwusemob/CeW8Yie/rimidozilitimonofitiga.pdf
    • https://cdn.sqhk.co/tejosepu/iegeojd/zosezevixara.pdf
    • https://cdn.sqhk.co/turaxulefa/dgjRhfR/history_channel_vikings_season_5_download.pdf
    • https://wujipiledulom.weebly.com/uploads/1/3/4/6/134695719/xanevusilifipiw.pdf
    • https://cdn.sqhk.co/dakubakasilu/cjbhia4/scooby_doo_movie_zombie_island_cast.pdf
    • https://nakidero.weebly.com/uploads/1/3/4/5/134524904/rudasirojubodam-natoxaxoda-nabadubupe.pdf
    • http://sejerodetupumil.medianewsonline.com/pigenewirovi.pdf
    • https://cdn.sqhk.co/pivokazi/ic78he0/30861251937.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dapizodipe.myartsonline.com/45362970013.pdf
    • http://lumosaneja.onlinewebshop.net/lanewemosabajadedak.pdf
    • https://s3.amazonaws.com/jivamubug/lagu_yang_terdalam_peterpan_mp4.pdf
    • https://s3.amazonaws.com/tazibabebamep/traduire_report_abuse_en_francais.pdf
    • https://s3.amazonaws.com/tonemakopinibem/47216313757.pdf
    • http://jofikuv.atwebpages.com/ashton_kutcher_the_ranch_season_8.pdf
    • https://s3.amazonaws.com/xokebore/fournier_s_gangrene_treatment_guidelines.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002245a.bin
9ef0e391376404f7ee28f49276d662a1fe0e415aff2ba036ee231c6bf5956912		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2245A 3468 bytes
font_01_sfnt_off000230b3.bin
c15c93e1f12f499d687dde73dd5703f49a17a3d8d3d9a1477e5b0fa02e66130b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x230B3 5604 bytes
font_02_sfnt_off000243b2.bin
5ce29d243e95bd7dd50bfe16c0405c14a670c56fb982708c0125e2fac38ed3c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243B2 13244 bytes

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