Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cb8283043f4ab03…

MALICIOUS

PDF

45.2 KB Created: 2020-03-10 02:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 88a1245803a33fb7e55500a517b4bfe6 SHA-1: 1a96e9d99d289b3b976aa05281b7ac7438ab0e1e SHA-256: 9cb8283043f4ab03ebded058dfa2b158bfe7d1ad81a09cd1f4ca296d9ee010fc
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or a method to distribute malicious content. The embedded URL also leads to an external resource. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://mninal.salon225.com/uploads/1/3/0/7/130775680/130775680.html#acetic+acid+and+sodium+bicarbonate+type+of+reaction
    • http://sunnymotorbiketours.com/uploads/1/3/0/7/130738777/rinizij-vabilutidon.pdf
    • http://brosrf.org/uploads/1/3/0/7/130774994/lobod.pdf
    • http://www.tahoeadventurebikerentals.com/uploads/1/3/0/6/130621664/vamuxuwu.pdf
    • http://dr-lawexperts.com/uploads/1/3/0/2/130270869/768029.pdf
    • http://aslantonbritishshorthairs.com/uploads/1/3/0/6/130639365/gefonifigemoxob-sajitozoxoko.pdf
    • http://geminipartners.org/uploads/1/3/0/9/130969334/zejaxesisav.pdf
    • http://dwtaylor.com/uploads/1/3/0/5/130541743/6681abf1f.pdf
    • http://www.cfccelect.com/uploads/1/3/0/9/130969001/sesovivanif_zurumidu_lobobuzomapa_xasar.pdf
    • http://andyknguyen.com/uploads/1/3/0/7/130739579/nejozebizuzonibikir.pdf
    • http://aaronkleiber.com/uploads/1/3/0/5/130539875/9705644.pdf
    • http://beingaliveisawesome.com/uploads/1/3/0/8/130814339/75688.pdf
    • http://www.tahoeadventurebi
    • 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_off00008512.bin
19ca6d6c6836b468f7f6cc092bfc01b68c226b19368640fc1674ef676c81cd62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8512 9104 bytes

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