Malicious PDF — malware analysis report

Static analysis result for SHA-256 44368bd7372a71bd…

MALICIOUS

PDF

42.9 KB Authoring application: Adobe PDF Library 9.0
MD5: 3b1a6b0d3aac79b3a72f52565ee1ed0e SHA-1: d11e03b2a454383c8d215ba0fc48d17bec0132a3 SHA-256: 44368bd7372a71bd3f3a9d1d4f78bc9ba04a4a0f18e550b9368e9362639b9d96
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further suggests a phishing or traffic redirection intent. The document body is heavily obfuscated and does not provide clear textual lures, but the sheer volume of links points towards a strategy of overwhelming the user with choices, all leading to potentially malicious destinations.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://alecfasani.london/uploads/1/3/0/6/130620431/5fe334a89dcb.pdf
    • http://balacas.com/uploads/1/3/0/5/130543868/7382990.pdf
    • http://loudfitness1.com/uploads/1/3/0/4/130494172/vosotevominege-gumotute.pdf
    • http://www.bulverdepregnancy.org/uploads/1/3/0/5/130538931/migazuzirewisux-mugopurebagidez-wobatoxubir-bupumexajo.pdf
    • http://cerecintraoral.com/uploads/1/3/0/2/130273623/fafidufe.pdf
    • http://myecwc.com/uploads/1/3/0/2/130271206/2328135ec05c.pdf
    • http://bestework.com/uploads/1/3/0/5/130551795/8203279.pdf
    • http://xintaiyangchengkaihuyouhui.br3h.com/uploads/1/3/0/7/130775986/7535450.pdf
    • http://www.siouxlandcore.com/uploads/1/3/0/6/130639379/bexixapururimi.pdf
    • http://theholographicchoice.com/uploads/1/3/0/7/130776225/fd71b67dcb7552.pdf
    • http://mhswarriorettes.com/uploads/1/3/0/3/130313107/jewobuxujutob-nituz-lupewova-mazeruvisan.pdf
    • http://www.knightsan.com/uploads/1/3/0/4/130489044/fatudoma.pdf
    • http://nicolewilliamswrites.com/uploads/1/3/0/5/130543640/boxose-mipeko-lagotisij-fexiwos.pdf
    • http://reclaiminghopecounseling.com/uploads/1/3/0/6/130620551/rifibu.pdf
    • http://bn0tr.bpmtc.com/uploads/1/3/1/0/131070992/131070992.html#activex+control+in+vba+excel

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032ee.bin
809e4ed1761795fe1864bc27332a1522b143418fcdd8fa22ba7aa8e0bcb4fa2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32EE 16580 bytes
font_01_sfnt_off00004cad.bin
84a8b4e93c0e882f1c9ba6c7ea2c3ff728f5c71a19d8eda4f086e828959b0512		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CAD 8364 bytes

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