Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccdaf4fe2eb70033…

MALICIOUS

PDF

88.3 KB Created: 2021-07-14 02:37:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: be0c5b427bfe85a188c8d4da9366c34b SHA-1: fa9e663e583c91a9a81b8f3ce38da62acaaf28cb SHA-256: ccdaf4fe2eb700333ddaf73279bfef230b2d3ab295eacd55ffb4f499ab5f0c1e
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ClamAV heuristic identified this PDF as a phishing trojan. An embedded URI points to a URL that, while currently classified as benign, is likely part of a phishing lure. The document body is heavily obfuscated and unreadable, preventing a more detailed analysis of its specific intent.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3361

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/WVKuihPcy9U/square?utm_term=french+verb+attendre
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec8dfa97282d6f46910ddc/1626115578760/elements_of_literature_book_answers.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec7e234a8bde38c3442528/1626111523776/mejatezugaworojoxuzarali.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec8e9b9a1cf201f8058a28/1626115739311/8_ounce_ground_beef_nutrition.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e770e3a336ab736a1eca26/1625780451538/maybe_so_meaning.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e7c3384261ba79805ff9b8/1625801528101/lolagifulefufujomeki.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1d5.bin
0031c3c2ba3b90d97080a977e9401a565477d1436ef4c4b456ff0784fff818bd
pdf-font-stream PDF embedded font (sfnt) at offset 0xD1D5 17160 bytes
font_01_sfnt_off0000eb4b.bin
6700af213a92a1e4eb0ae3a00dc298d90f6d41dbbefd42c1b8adf833393198a8
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4B 19544 bytes
font_02_sfnt_off00011c4e.bin
5221cc56e96b657ff7c15f49bf1fbf1b5222e15cd7ffd769ce953162a3e53832
pdf-font-stream PDF embedded font (sfnt) at offset 0x11C4E 2064 bytes
font_03_sfnt_off0001258d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1258D 16792 bytes
font_04_sfnt_off00013da4.bin
2511137553ab23f14d427af93f53e3b38eff55d0372bd6d485b43542cdac61a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x13DA4 10224 bytes