Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f02762302f45758…

MALICIOUS

PDF

113.9 KB Created: 2021-07-14 10:00:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 6daebc329376f6ef1bbe0ce5d8f5e217 SHA-1: 8b86c6f0a0a63d00201b7e5d1eda6e82f717857b SHA-256: 6f02762302f45758404f4f6432bd9788d3b2346ac7e7ea8a083142c077e83fbd
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that leads to a suspicious domain, likely intended to host a phishing page. No scripts were extracted, but the PDF structure and embedded URI indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://archism.ru/square?utm_term=causal+agent+of+typhoid
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec737659713006cbdfab20/1626108790234/jquery_ui_sortable_placeholder.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e8ff4027127e68041470eb/1625882432713/22086712533.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec9f701951226b8b8d8bb6/1626120048578/mother_perpetual_help_church.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ed97d38d40d36f00836f96/1626183635652/61779221176.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8827af9910009ad94dd98/1625850491018/lamejabaribozononinur.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec78e95f604029b9905ddf/1626110185637/lefum.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee58728685745b7d16c296/1626232946529/colorado_department_of_safety.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60eda50746a7611a87d0272b/1626187015745/watch_irreversible_online_free.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8f6c4566ded7d61ab1a69/1625880260988/defino.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e7737c651fad09a6667281/1625781116889/bsc_actuarial_science.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ed8c9543ec04194fd99fb8/1626180757590/wow_orgrimmar_flying_trainer.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e7ed8bf29cd6423db521e4/1625812363079/how_to_find_imei_number_of_lost_iphone_using_icloud.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015c1a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15C1A 16792 bytes
font_01_sfnt_off00017431.bin
0f17696a1437b8ebea4cabbabe58abd0f0752c0751162ad764ccb8fdc0bcc989		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17431 10924 bytes
font_02_sfnt_off00018d48.bin
14b1396ce190b52632d1421a7a6867f893d60f42ba3edb481a1e3bdfe88b36ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18D48 18108 bytes

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