Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0f11c0bd75da7af…

MALICIOUS

PDF

75.9 KB Created: 2021-07-14 03:25:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0cfa92116647450765a03f8ee484f672 SHA-1: 7dddf4db030922b5ab7a8ea287e2c087ba57a711 SHA-256: a0f11c0bd75da7afb969fed58f96b71819c0c62830262f5a8454c129d6afa70b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an embedded URI, despite being labeled as confirmed benign, suggests an attempt to redirect the user. The PDF structure and metadata are consistent with malicious documents, and the 'Pdf.Phishing.Trojan' detection name strongly implies a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9163

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/jEScUJLm1bs/square?utm_term=texas+donation+request
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e80f805eabb22f35dcb245/1625821057169/94158045141.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee2733b82b3047685ebddb/1626220339490/the_number_of_valence_electrons.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60eca3ede4ca3800a11acadf/1626121198039/piluposu.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60edda48ad58ca03d2266c00/1626200648931/one_syllable_country_names.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec8445b8cbe518df57d720/1626113093271/bhaga_meaning_in_english.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e883914fc0cf5de7d790b5/1625850769249/41587127014.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec88ff4c0b954f9ea4bb76/1626114303897/chemical_engineering_fluid_mechanics_notes.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_off0000c892.bin
8eea351dd3fd31103f18c4d3fe168ae178e0ae051e6eb6536b11527a4bb7d56e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC892 10504 bytes
font_01_sfnt_off0000e06c.bin
e8ed3c4068ce9bcb6954b4d90aa2247ebea1a21f381f8740f9f4d8956b1a28d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE06C 16700 bytes
font_02_sfnt_off00010bae.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10BAE 16792 bytes

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