Malicious PDF — malware analysis report

Static analysis result for SHA-256 2046b454b89a1236…

MALICIOUS

PDF

34.9 KB Created: 2020-05-15 18:26:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 04eb827ce0c3a645fd2a5b27989eea97 SHA-1: 536710d841adbf178d82075ea4bdcdd3a22dedfb SHA-256: 2046b454b89a12362e5375550db226e324a79b82c787683062b23f102236b7db
82 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files, suggesting a link farm or SEO abuse tactic. The document body and heuristics indicate a callback phishing lure, prompting the user to call a phone number related to a fake issue. No scripts were extracted, limiting the analysis of direct payload delivery. The primary attack vector appears to be social engineering through a deceptive document.

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://iglootw.com/uploads/1/3/0/5/130588757/130588757.html#bt+phone+answer+machine+not+working
    • http://hillyhundred.info/uploads/1/3/0/7/130738754/wijonokuzesop.pdf
    • http://paulinefonzi.com/uploads/1/3/0/8/130814562/tojedurisog.pdf
    • http://boobearsbrew.com/uploads/1/3/0/4/130492127/7539532.pdf
    • http://vonsloccreations.com/uploads/1/3/0/6/130620926/rinimos_tusitad_libenamine.pdf
    • http://study-to-success.com/uploads/1/3/1/4/131482988/3335042.pdf
    • http://sparkeinc.com/uploads/1/3/0/4/130478819/0415157b70f.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_off00005d38.bin
12826a6a8f04e5926667909bed15b4ed94112b8648c048aa3410e36c63ba7836
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D38 10488 bytes