Malicious PDF — malware analysis report

Static analysis result for SHA-256 17fad69e39a43436…

MALICIOUS

PDF

116.2 KB Created: 2021-07-21 21:14:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 8c54a181bcdf20cce3531e93ec989e13 SHA-1: 0bb9a3a72d66ddac8d4286d5c86bfd855c800118 SHA-256: 17fad69e39a4343639e06adf730645131471dcaba9e07453582fc5ab5bbd3e08
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. The presence of embedded URLs suggests the PDF is intended to redirect users to malicious sites. Although no scripts were explicitly extracted, the PDF structure and embedded content are indicative of malicious intent, likely to exploit vulnerabilities or trick users into downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://feedproxy.google.com/~r/sq/ugae/~3/qQn0o4eTdIQ/square?utm_term=country+rock+singers+male
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f63f8f514b21793b4e09a8/1626750863758/confluence_space_tools.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f001aa1c2a3138378e5b88/1626341802308/94292353823.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f7426686120f686ca5b23a/1626817126564/stravage_in_a_sentence.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f5af489fcba71c4acd63f9/1626713929225/67019849826.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60eca52a3080d76c7a54081e/1626121514623/20382372473.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f680d8351e882d92433a94/1626767576606/count_and_write_worksheet_for_nursery.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ed8b692ae47d2ac9243bcd/1626180457757/72076455011.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f0d849c825a553dff06eec/1626396745402/zoboluwoxeviwurutilaf.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60edcad57ce58f02ed91accb/1626196693926/xuguxokipapupukip.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f5ab885ac1050346bc5587/1626712968512/13973481252.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f7b1c167b36875348a4a16/1626845633454/91085595189.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60eddc17cc8e436e46652751/1626201111362/nuclear_power_plant_book.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60edc09930d23a75506062f1/1626194073959/organisms_living_near_hydrothermal_vents_get_their_energy_from.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8427fa9c4294aacf594a6/1625834111535/the_ultimate_situational_survival_guide.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f8463012db3d6e375c71b9/1626883632378/1100_mb_to_gb.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f674fd3b8c3407e1b0f24f/1626764541144/15053490616.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f0771b98e33d2cebbe9db4/1626371867500/gentle_reminder_email_to_hr_sample.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e8efccf107ff2467e6c180/1625878476899/61542181986.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_off000163ca.bin
0b81f55f7e3a73a43581a9b8a6958dd6252f9c9824c0089ecd8aa7769696a327		 pdf-font-stream PDF embedded font (sfnt) at offset 0x163CA 17664 bytes
font_01_sfnt_off00019258.bin
b059019ddbc47626b3eb6c1709cfbdd9c2aa609d90251170bcc13b2914a34413		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19258 10912 bytes
font_02_sfnt_off0001abc0.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1ABC0 16792 bytes

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