Malicious PDF — malware analysis report

Static analysis result for SHA-256 2deb4980c2601630…

MALICIOUS

PDF

81.2 KB Created: 2021-07-22 04:16:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 823680a7afca338369cccc29e2f259f2 SHA-1: f94d2b44c377942342fa3676943232cc80924810 SHA-256: 2deb4980c2601630b6dd924a1b4f0ca5b2f715669325e71b54459ed3bf871994
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs suggests a phishing or redirection attempt. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious document, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://feedproxy.google.com/~r/sq/ugae/~3/S-4CHg4Qmwo/square?utm_term=pdf+technical+services
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e93231defa333328ab06bd/1625895473267/xixipogo.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f62b9be514952827cd175d/1626745755285/symbiosis_ecology_definition.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f42b263a33e4096de3db7c/1626614566316/95372228594.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f3f7a96167905317e0fd1a/1626601385742/27381426819.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ed9a8cc8cbd011b90b9de2/1626184332612/10137699518.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f0567db9070f061f2d8b55/1626363518304/verse_about_casting_burdens_on_the_lord.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e92f91db8bb141bad9e219/1625894801532/list_of_biology_scientists_and_their_discoveries.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f014b6d777570416549308/1626346678522/how_to_pronounce_usually.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f3ba0caba5f52989ad0f54/1626585612518/stencil_drawing_for_kids.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f175516186c431004661b4/1626436945310/56607029337.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec90ec3631fd4ab81730f4/1626116332400/tenozikopedawivebogebema.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e8a79f3817d36d1155b4ff/1625859999730/44108838404.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f5a68a70e1af736d8d3ce7/1626711690350/77259874488.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f8b39cd0dad67a22d54f0c/1626911644555/77399080511.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f7672cd4084472284fcfd7/1626826540509/how_many_dimes_fit_in_a_16_oz_bottle.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f02c79e00eb31d7cefa180/1626352761179/actor_garcia_weight_loss.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee903f39b82603386e9214/1626247231657/twilight_full_movie_in_english_download.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f8baea51efa1374401899c/1626913514247/section_4_little_league_ny.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ede3e7bf52576c6247b2c0/1626203112070/fudilatimis.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f3605a1ad9bf1c32b50686/1626562650548/befetifebefikubop.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_off0000dc2c.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2C 16792 bytes
font_01_sfnt_off0000f43e.bin
150505dc2262ed14cb4170f69db1272b718391f73cafe04776aff940c0ab93c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF43E 16224 bytes
font_02_sfnt_off00011e5a.bin
109b5799c3cfe25f90735855ecb5493028913d7fe4add64a6ab68d024d99c7bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E5A 10520 bytes

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