Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7f31adf6d78b25b…

MALICIOUS

PDF

83.0 KB Created: 2021-04-05 08:08:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a78dcfac1f055a5626f1b4c38fae675 SHA-1: 2c95306cbfb1bd15f32e0f440af227b17a30b8d9 SHA-256: c7f31adf6d78b25b973e04f902a267ce1c0300205ada60d27ff6ef9b7b607987
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'scaled agile framework safe distilled pdf', aiming to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://lozipotod.ru/award?keyword=scaled+agile+framework+safe+distilled+pdf
    • http://sizinepizot.scienceontheweb.net/vba_macro_excel_tutorial.pdf
    • http://kavelokafozi.medianewsonline.com/libro_diseo_de_bases_de_datos_relacionales.pdf
    • http://zutumufedige.getenjoyment.net/29935124313.pdf
    • http://nomenowunesazoz.scienceontheweb.net/car_alternator_circuit_diagram.pdf
    • https://dipediras.weebly.com/uploads/1/3/0/7/130739778/7287502.pdf
    • https://tiruzezisuwef.weebly.com/uploads/1/3/4/4/134499189/2415984.pdf
    • https://static.s123-cdn-static.com/uploads/4385631/normal_5fee8a20892b0.pdf
    • https://cdn.sqhk.co/zewezerezi/zIggbRm/rocket_car_ball_mod_apk_1._9.pdf
    • https://cdn.sqhk.co/sevijeruba/a4sgijd/kiki_dee_singer_elton_john.pdf
    • https://digagewopaloz.weebly.com/uploads/1/3/4/6/134634746/2cb5ed8b93dfdda.pdf
    • https://cdn-cms.f-static.net/uploads/4368238/normal_5fe8748943809.pdf
    • https://cdn-cms.f-static.net/uploads/4380869/normal_6048a06f3160c.pdf
    • https://static.s123-cdn-static.com/uploads/4427795/normal_5fe070968029a.pdf
    • https://cdn.sqhk.co/pagozixupezi/b8dRTPj/zeton.pdf
    • https://static.s123-cdn-static.com/uploads/4453885/normal_5ffdf5db14275.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xagejedidupomup.rf.gd/synonyms_worksheet_with_answers_doc.pdf
    • http://fukasutatota.rf.gd/global_warming_greenhouse_effect.pdf
    • http://wikeziduloduw.rf.gd/povigurijato.pdf
    • https://s3.amazonaws.com/wixanarer/zojaxigogumigudunules.pdf
    • http://golujaxi.epizy.com/85481168599.pdf
    • https://s3.amazonaws.com/mejigavukolu/clerical_associate_level_3_salary_nyc.pdf
    • https://s3.amazonaws.com/wujanozo/splash_screen_maker_free.pdf
    • https://s3.amazonaws.com/wetevali/upsssc_vdo_form_sarkari_result.pdf
    • http://bopiguxa.atwebpages.com/arduino_cnc_shield.pdf
    • http://notaruk.rf.gd/speed_test_ptcl_software.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_off000101ca.bin
9f1a7fd3e59622a9efc844a240e2be67fc7f258c8d51697c48388bdfed5c4ae4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x101CA 5736 bytes
font_01_sfnt_off00011559.bin
ad601e4572a3f0505d81289c061d9c1b80c404621788f7196cb65b35aaf0da4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11559 11668 bytes

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