Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bba8598e8f2ab1f…

MALICIOUS

PDF

86.4 KB Created: 2021-07-22 00:04:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f5b0edc75dac33d47715ba56edfbd808 SHA-1: a1619b0aafba01bb712990e79281d69744143dc6 SHA-256: 9bba8598e8f2ab1fe9e8a522f419aae1cf7227e233b040b4c27e4dd83bae4042
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a malicious site. No scripts were extracted, but the presence of a malicious URI in a PDF strongly suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://synerhu.ru/square?utm_term=caulfield+races+results
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e8b52e4129c85887a6bd42/1625863470173/fagamewodi.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7aea5a431ed42d2f97a22/1625796262107/2382802423.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f2e8c551c2e860984a8b68/1626532037852/97548805290.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee957f2a4cda176262849b/1626248575734/90689652832.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e94d5c2f3c4128e18bab35/1625902428239/a_triangle_cannot_have_more_than_right_angle.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f130c3e75c7a046d9cf1c4/1626419395769/podepuwudotula.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f5ab577cd9c942084378b1/1626712919186/dongodu_mp3_songs_download.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f0a006d219ba36b74438d8/1626382342852/zogareburizu.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee1a26b1dcdf258da53677/1626216998628/43844884308.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f671c9b3c02b00e1f34cd4/1626763721319/bikebalugekitojikuwuva.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f82873c1165a7252687f30/1626876019196/14537939684.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60eca58177250868136ff2ca/1626121601971/chartres_cathedral_architect.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f261c326c2747482d62d98/1626497475186/19257691400.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f88bc6bdf15a01f206ebb3/1626901447060/1308752490.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e7fdd64aaab0286a8bdf50/1625816535119/i_am_healed_by_the_wound_in_his_side_lyrics.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec9097f91837287387d1eb/1626116248145/kulefepikoxeliro.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_off0000f06a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF06A 16792 bytes
font_01_sfnt_off0001087c.bin
cf48ef080ecc1eee61ff42508ada249fb20a407b729398865b7c1aec6c2fb6e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1087C 17088 bytes
font_02_sfnt_off000135a3.bin
83018308807428742d1494cd0b196c224fbd9b75d69879a02ed2cea7a545cd96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x135A3 10376 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.