Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc828aa0d42bd8c7…

MALICIOUS

PDF

49.0 KB Created: 2020-03-28 10:53:01 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 603d5e6643b307e374ddd39a99fa4474 SHA-1: 7ae4ae5182cd5b52857c0e9c2644c980b1df31fd SHA-256: fc828aa0d42bd8c7b25da4f905dc5c7fabf25a82604941fb215eee0f15b08420
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. The primary heuristic indicates a 'PDF_SEO_LINK_FARM', suggesting the document is part of a network designed to distribute traffic or host malicious content. The embedded URL also points to a similar structure. No scripts were extracted, limiting further analysis of direct payload delivery.

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.
  • 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://inwardvision.com/uploads/1/3/0/4/130476738/130476738.html#que+es+numero+de+masa+at%C3%B3mica+en+quimica
    • http://querubicamp.com/uploads/1/3/0/8/130813490/5298011.pdf
    • http://portalcleaners.com/uploads/1/3/0/4/130488920/f6a415357609d3.pdf
    • http://artsestate.com.au/uploads/1/3/0/7/130740255/kowafetibebu.pdf
    • http://www.quiltwithleslie.com/uploads/1/3/0/6/130620455/zefumilik_tizifibekol.pdf
    • http://www.yogaatschools.org/uploads/1/3/0/5/130539107/popevidox.pdf
    • http://74-123-76-34.mgwnet.com/uploads/1/3/0/3/130323811/koduvajevuzebiwop.pdf
    • http://www.rainbowreveal.com/uploads/1/3/1/0/131070152/gazasezebore.pdf
    • http://edocig.com/uploads/1/3/0/2/130273581/9901418.pdf
    • http://brukhair.bernardcassiere.fi/uploads/1/3/0/7/130776873/7838329.pdf
    • http://dentaljedi.com/uploads/1/3/0/6/130639599/rakedanonafufazo.pdf
    • http://supernovaexotics.com/uploads/1/3/0/6/130621335/3c6b807.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007245.bin
f74269f379cb416473428f2b0d84153f62db0627ab51ac6237f009b547cf41f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7245 9944 bytes
font_01_sfnt_off000095cf.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x95CF 2652 bytes
font_02_sfnt_off00009f36.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F36 16036 bytes