Malicious PDF — malware analysis report

Static analysis result for SHA-256 69ee7e2ea401589d…

MALICIOUS

PDF

78.7 KB Created: 2021-07-21 17:18:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 1966d1aa648ae506a6223c47d81b1643 SHA-1: 5ced2d7debdcbc7e404cc7e9bdefb087d6a1c917 SHA-256: 69ee7e2ea401589d8321b76fe14a06e9c5336a9d77321c5e8e1825037a2ed019
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The embedded URL, 'https://smidgel.ru/square?utm_term=style+taylor+swift+chords', is likely used to redirect the user to a phishing or malware distribution site. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the presence of a malicious URL strongly suggests a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://smidgel.ru/square?utm_term=style+taylor+swift+chords
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f14a74fe1af12ac2c4e5f6/1626425972974/come_on_down_lord_jesus.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f07454c358bb447607052f/1626371157153/68888142398.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f7a45138a0583738292f4b/1626842193764/place_for_final_words_nyt_crossword.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f4e21027519501fc240658/1626661393026/fasedukinasufoludutaber.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f09cca7db9c748133c501f/1626381515132/michigan_booster_seat_laws_2020.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f66c80aaa839667718af38/1626762368607/pdf_put_together_one_file.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f7923ebe79d63b81eb3e79/1626837566707/indiana_high_school_basketball_champions.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f74dd81091db506020f153/1626820056940/best_opm_songs_of_all_time.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f6ac2adfb63e545b6bd825/1626778666470/togawujovapepolazewurasu.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f80dec3fe7684a17be1817/1626869229088/herblore_ironman_guide_osrs.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e8c3233601b306b46fe163/1625867043163/27028037998.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f0c45f840b985f2c52ac9f/1626391647676/claudius_ptolemy_geography.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f324c65f13a15bd81c8061/1626547398237/cooking_red_cabbage_with_apple.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f7ddf88c94980aa1701d2b/1626856953082/how_to_pray_the_rosary_on_thursday.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f16c63adf71e7547cfd3ad/1626434659908/bloons_td_6_online_unblocked.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee8ee87d49fb55d62bb751/1626246888254/python_pocket_reference_5th_edition.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f5d8edd7cf2d305dc061ab/1626724590086/water_policy.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f7ab9ba1bc6e1f97d42f74/1626844060099/11668677343.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f520c79c7c9f0ea9afbe03/1626677447255/depressed_for_no_reason.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_off0000d25a.bin
cf01babdcdfd071ea8830714c65deecfec3e26d625d7da77634da755e4d0e09b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD25A 10744 bytes
font_01_sfnt_off0000eb43.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB43 16792 bytes
font_02_sfnt_off00010355.bin
072d0f4b5523e1a9abdae22aed6cbaafeb1d147324a5c30761a865977ddf17ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10355 16376 bytes

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