Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca98c5238288b982…

MALICIOUS

PDF

39.8 KB Created: 2020-04-05 06:24:20 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9d5f02b8000d1967f974725bb4f87f8c SHA-1: bbeb441b4070ede6b6f2f1f1d767180c8d0aba4f SHA-256: ca98c5238288b9820c98670755592e862c50a48a25e8abdde8102f9b8a788390
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF contains a large number of external links, indicating a link farm or SEO manipulation tactic. Additionally, a callback phishing lure is present, suggesting an attempt to trick users into calling a fraudulent support number. The document body itself is heavily obfuscated but contains references to study schedules and embedded URLs, reinforcing the lure. No scripts were extracted, limiting the analysis of direct payload execution.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://elliejames1.com/uploads/1/3/0/7/130776401/130776401.html#usmle+step+1+study+schedule+4+months
    • http://pofcalls-enable.com/uploads/1/3/0/6/130621059/bajugan.pdf
    • http://ausefulvessel.com/uploads/1/3/0/9/130969403/9317657.pdf
    • http://lagranvilla.org/uploads/1/3/0/7/130739951/9665510.pdf
    • http://bertlyman.com/uploads/1/3/0/2/130287472/pudafen.pdf
    • http://neuroticross.com/uploads/1/3/1/0/131070006/kezalitag.pdf
    • http://eslmyway.com/uploads/1/3/0/5/130544352/8747590.pdf
    • http://remediocbd.net/uploads/1/3/0/5/130541402/dijixosoxubun.pdf
    • http://tctfoundation.info/uploads/1/3/0/7/130775257/302526.pdf
    • http://prestigeeminence.com/uploads/1/3/0/4/130476144/8119347.pdf
    • http://puntguru.com/uploads/1/3/0/5/130588617/41b3dab030d1c4e.pdf
    • http://wildflowerwritings.net/uploads/1/3/1/1/131164417/busupadoxobojonavivo.pdf
    • http://tysoares.com/uploads/1/3/0/6/130639479/2337913.pdf
    • http://champironworks.com/uploads/1/3/0/6/130621376/rojizosadaw-mofuxowukuresu-xumejuna.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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007000.bin
628482bc716d953b243390379fe22bc88584b5076ce143eb531b33d481608039		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7000 9048 bytes

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