Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf6c4d2942301ea1…

MALICIOUS

PDF

71.1 KB Created: 2021-03-03 22:37:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d668977d1dfecd6d30a3a20295817289 SHA-1: 5681e5b6ab39dfba537cb260674716421d92da7b SHA-256: bf6c4d2942301ea1bafefb15ac136f6c207dcce56e8269a2f4ce0f1c24f918dc
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a URL that appears to be a lure for downloading a service manual, likely a malicious document. The presence of multiple suspicious URLs further supports the phishing and malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/wix?keyword=jeep+xj+factory+service+manual
    • https://cdn.sqhk.co/ludukuni/1ttRiju/99952505100.pdf
    • https://cdn.sqhk.co/reparepoki/oifichf/true_football_2_mod.pdf
    • http://vbruti.site/new_h_pylori_guidelines_2017ir6qw.pdf
    • http://tesar-krd.ru/fanumakusafofadaklwt.pdf
    • https://cdn.sqhk.co/gitogozune/cJghigG/the_survival_hunter_games_2_apk_mod.pdf
    • http://getyourscore.info/messenger_pc_versions4qfj.pdf
    • http://muparizuxufuxud.22web.org/kerakoll_fugabella_grout_data_sheet.pdf
    • http://air-calm2.club/bootstrap_form_input_stylesm3bj2.pdf
    • http://teren.fun/environmental_health_and_safety_jobs_in_michigan6o3ci.pdf
    • http://clebohets.xyz/10th_class_mathematics_book_odiskeevg.pdf
    • http://reduslim-italiaoficial.site/probabilidad_y_estadistica_descriptiva2uuhr.pdf
    • https://cdn-cms.f-static.net/uploads/4368763/normal_5fe75bc6daeec.pdf
    • https://cdn.sqhk.co/digipexula/hhdhejf/69927866639.pdf
    • http://revenularozudo.66ghz.com/android_file_system_browser_pc.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kenamumiv.rf.gd/xowezetejapelokadejuzex.pdf
    • http://salulasalanegox.rf.gd/balanopostitis_tratamiento_nios.pdf
    • http://gobavaduxa.epizy.com/31699257614.pdf
    • http://famuruvif.epizy.com/31780193912.pdf
    • http://lisowinuxofifok.rf.gd/75441915351.pdf
    • http://zaxawogaxema.epizy.com/gattu_battu_remix_song.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_off0000d9e9.bin
808e6297803483cfbcb21ae2dbd1c3ef4fe232581a54e97fff131f96a70c58cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E9 5456 bytes
font_01_sfnt_off0000ec84.bin
9f7817410dcc1b41bbdb2da88b09c7a9789618e5778a5ee76d385f7d8a35fba5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC84 10184 bytes

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