Malicious PDF — malware analysis report

Static analysis result for SHA-256 132df6195d93e090…

MALICIOUS

PDF

78.7 KB Created: 2021-07-14 00:09:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 532c11d9faaa41cb0bf1203d18ea87f4 SHA-1: 1f51541987e6cae1884891280374485cf84f3ada SHA-256: 132df6195d93e090e9cbccea8744983991185de86e9f6127f613c37848a8061c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The embedded URL, disguised as a link to a free live football streaming app, is the primary lure. Although no scripts were explicitly extracted, the nature of the detection suggests potential for embedded JavaScript or other exploit mechanisms within the PDF structure to redirect the user to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8287

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/k6oGaauGqGM/square?utm_term=free+live+football+streaming+app+for+android
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e88b0f3fd6951e3d1961dd/1625852687284/don_appropriate_ppe.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee0083d6ef6771c1df9534/1626210436119/77763951905.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e8a840171439398e0bd046/1625860160394/7048914600.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec8eee05183b3b579e2715/1626115822393/world_population_1970_by_country.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8514afd08905cf2061ec5/1625837898463/best_thoughts_on_life.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60edff90e11d817478d5a85c/1626210192840/dramatic_irony_in_a_sentence.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_off0000d51a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xD51A 16792 bytes
font_01_sfnt_off0000ed2c.bin
1e7fbc6a4b25e4564a5ccce5960236a61eda279a8b949ee88a5407851e579ff5
pdf-font-stream PDF embedded font (sfnt) at offset 0xED2C 15696 bytes
font_02_sfnt_off0001157d.bin
9fc7db66711f153b8308ff8929fae9a7feec24f0aeb361ca693f5695bfa7dfe7
pdf-font-stream PDF embedded font (sfnt) at offset 0x1157D 11024 bytes