Malicious PDF — malware analysis report

Static analysis result for SHA-256 6627703d19da3a99…

MALICIOUS

PDF

75.7 KB Created: 2021-04-02 06:56:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19ac5adb47dfab600f153235055bb5d0 SHA-1: d72ff54e0d157d1fb1f1fdcc57c301cb5309c14d SHA-256: 6627703d19da3a99e4689133dafa27aff57c5691680fc6697a0ad3d44d90778d
104 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains multiple embedded URLs, with the primary one being 'https://zajinet.ru/award?keyword=adawat+novel+by+riaz+aqib+download+pdf', suggesting a lure for downloading content. The presence of a visual download button further supports a phishing or social engineering attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://zajinet.ru/award?keyword=adawat+novel+by+riaz+aqib+download+pdf
    • http://jabewes.medianewsonline.com/vedic_astrology_books_free_download.pdf
    • http://tuduvodakep.mypressonline.com/65682775073.pdf
    • http://xupokaxe.medianewsonline.com/gokajetuxenomekep.pdf
    • http://retapadu.medianewsonline.com/couples_painting_with_a_twist_near_me.pdf
    • https://cdn.sqhk.co/muvotugi/ggggggi/82948397471.pdf
    • http://wirobigi.medianewsonline.com/bollinger_bands_indicator_settings.pdf
    • http://metarapuw.mypressonline.com/crossfire_miniature_rules.pdf
    • https://cdn.sqhk.co/zugivakizo/iegj3vn/how_much_does_smithsonian_channel_plus_cost.pdf
    • http://linavaluviriv.getenjoyment.net/borawoxevosigaliginirinaz.pdf
    • http://revodegasiger.sportsontheweb.net/tubijukefujamubukaga.pdf
    • http://xonibiz.22web.org/8847655221.pdf
    • https://cdn.sqhk.co/modesarox/cgjLagj/mergecraft_mod_apk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jozetej/27003935375.pdf
    • https://s3.amazonaws.com/mafavuzenoliki/76690289491.pdf
    • https://s3.amazonaws.com/wumodukubaru/18679553435.pdf
    • https://s3.amazonaws.com/lijulijowivaze/44324211716.pdf
    • http://xugeseza.epizy.com/tuvizinowonapaxexisazeluj.pdf
    • http://mafofeguf.epizy.com/xbox_360_wireless_controller_via_play__charge_kit_drivers_download.pdf
    • https://s3.amazonaws.com/jivagajamav/34071371165.pdf
    • https://s3.amazonaws.com/miwolezedubujoz/broadcaster_pro_manual.pdf
    • https://s3.amazonaws.com/foneniz/who_is_lemony_snicket_in_real_life.pdf
    • https://s3.amazonaws.com/zijivevip/86106635518.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_off0000e1b1.bin
afd00e4a060dc3ffa6ff4d33679c04e8fffb98e5b8b540dd07117575c3f80f51		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B1 5416 bytes
font_01_sfnt_off0000f441.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF441 1800 bytes
font_02_sfnt_off0000fccf.bin
ba88ba142613d1498b0f8e0509865ba2042792387edbfe3de38f24e2f650da2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCCF 10220 bytes

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