Malicious PDF — malware analysis report

Static analysis result for SHA-256 51e77049820db9ff…

MALICIOUS

PDF

40.7 KB Authoring application: SWFTools First seen: 2020-09-15
MD5: 3d2af159512dff43317812caf49fc583 SHA-1: 11d948f025bac3e63427b2ed08b118b6a4a87253 SHA-256: 51e77049820db9ffcc11d9b6442ccaa56582ff4f4dbc4dba0199443b7d5ab71d
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF containing embedded URLs that point to other PDF files hosted on external websites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent, likely phishing or malware distribution. The document body, though partially corrupted, contains references to these URLs, suggesting they are part of the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://uclabbsa.weebly.com/uploads/1/3/0/2/130289558/906947cd5a697a1.pdf PDF link annotation
    • http://nancebmecleaning.com/uploads/1/3/0/6/130639329/4967824.pdfIn PDF document text
    • https://desutunidiruse.weebly.com/uploads/1/3/0/3/130313046/67abe.pdfIn PDF document text
    • http://theelfbox.com/uploads/1/3/0/4/130435712/130435712.html#jumbled+sentences+for+class+3+with+answersIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD0 8332 bytes
SHA-256: 254055e0089fce676b6d548c154d172f9bcbbf79593047b69f7adc2532c44962
font_01_sfnt_off000057f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F3 16364 bytes
SHA-256: c374740700516b41f218ce1f3063ed30c57c5df665187242c67f0d0be227b05e

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