Malicious PDF — malware analysis report

Static analysis result for SHA-256 a740d579630644c3…

MALICIOUS

PDF

73.4 KB Created: 2021-01-30 04:51:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7b89a048edf71ce500c474d1b1e91e42 SHA-1: 2b1d05f33f018c9a78d2ea88fac2be576a2b3f27 SHA-256: a740d579630644c3740f1a61b246739462bd66cd4f9bac869b49f439dc2ab165
96 Risk Score

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-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://seumenha.ru/aws?utm_term=informes+terminal+chajari+telefono PDF link annotation
    • https://cdn.sqhk.co/zaweniwefi/chibSij/oxygen_tank_refill_cost.pdfIn PDF document text
    • http://umkatrade.ru/best_keyboard_piano_app_for_pcjx6p8.pdfIn PDF document text
    • http://confirmationhelpcenter.com/samsung_galaxy_core_prime_battery_issuevfand.pdfIn PDF document text
    • https://cdn.sqhk.co/pezolaje/c0bgijg/honore_de_balzac_author.pdfIn PDF document text
    • http://all-system7.xyz/ping_pong_ball_air_target975le.pdfIn PDF document text
    • http://hot-money.fun/bizogafitefurogavurolef1htra.pdfIn PDF document text
    • https://cdn.sqhk.co/nebuneduzib/HhcheZW/kotetakiver.pdfIn PDF document text
    • https://cdn.sqhk.co/firataxoworo/jaYihij/navy_gunner_shoot_war_fps_shooting_games_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/ritasuxa/jAgdiix/ant_bait_lowes.pdfIn PDF document text
    • https://cdn.sqhk.co/datolabevev/9ds62ET/fubegoxeniromuribenadaxi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jufosuliz.epizy.com/53197102056.pdfIn PDF document text
    • http://fepevakadiw.rf.gd/kumpulan_lagu_anisa_rahma_new_pallapa.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_off0000de58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE58 5132 bytes
SHA-256: 2e4786a928362a1ab6affc8f10aec6df340cdda25993375326c9db7ccca24d2f
font_01_sfnt_off0000efa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA5 12408 bytes
SHA-256: 6c789b0949bb475c963319de8e169438fcee0c91aa1dc5aa49dcddfbf167292b

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