Malicious PDF — malware analysis report

Static analysis result for SHA-256 01b94b0dd31d3e15…

MALICIOUS

PDF

83.0 KB Created: 2021-07-02 17:46:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 1ead1080a663c8027b3f59dc32df688e SHA-1: 4409745a379e2cb797c63e70dc9623324674f49d SHA-256: 01b94b0dd31d3e15be2c671271e76004905eda3d1d83e250493793d2ca85e976
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that likely lead to the download of further malicious content. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it is designed to trick users into downloading and opening malicious files, fitting the profile of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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 http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093a2eea5558---27876990460.pdf
    • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5ce935ea5---vexidiko.pdf
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4d33ccf90---78235599420.pdf
    • https://toskov-yordanov.com/userfiles/file/xekigasejedezedep.pdf
    • https://ebooksweb.net/files/file/55366379093.pdf
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160757f30e7394---bikedi.pdf
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afed7c32a14---ginivesixagidelevemuwu.pdf
    • http://turatabor.hu/media/19370303212.pdf
    • http://qytbearing.com/upfile/file/seduvopulazovadokitekola.pdf
    • https://stillwaiting.org/userfiles/file/76298438386.pdf
    • https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/40b063e599e34e580d4bf040806fc4b6/rebemul.pdf
    • https://cheesykeju.com/contents//files/tefuwevozilemawawuxopuzu.pdf
    • http://praconsulgroup.ru/pict/file/29503244130.pdf
    • https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/slt3ok0il773k34p2e1fpkn81a/90544348780.pdf
    • https://btsmstlucia.com/atomicsteps/upload/userfiles/file/94931997760.pdf
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/49367167880.pdf
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608acae82d2c5---1487968030.pdf
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/a6771c2b849ce6fd7e954b4f4bbedb64/91233757146.pdf
    • http://matsusushionline.com/uploads/files/61603637412.pdf
    • http://grandp.ru/userfiles/file/66879509153.pdf
    • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/ae77b21d1a210e576ab32be3ef7df2de/jutekibagetapoxowadedu.pdf
    • http://harissarantis.com/userfiles/files/dakotufuta.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=do+i+need+crutches+for+a+sprained+ankle
    • 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_off0000e409.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE409 16792 bytes
font_01_sfnt_off0000fc20.bin
c13d7f6afb1adf06e2962fe232ebdf5bf76234d211df53511a60676849dc9bc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC20 10908 bytes
font_02_sfnt_off00011546.bin
fcecd4e7739c07f517c3167140d9a5c079c0abdc80bb5b1488f1140b2c89c64c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11546 16076 bytes

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