Malicious PDF — malware analysis report

Static analysis result for SHA-256 f41abd328da3ccb2…

MALICIOUS

PDF

38.9 KB Created: 2020-04-05 07:16:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 471fb3665bf41c409b4ee3989cfa5f96 SHA-1: ffdda27a15aa0896ea2d13c62e9276dc6bbc6832 SHA-256: f41abd328da3ccb2f1f30a71f069277f696fafc34c18f1d6fdf2476d344b453b
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 are numerically or generically slugged, indicating a link farm or SEO spam tactic. The document body, though partially obfuscated, contains a reference to a pediatric medication, likely a lure to encourage clicks on the embedded URLs. The primary intent appears to be directing users to a network of websites, potentially for malicious redirection or further exploitation.

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://block1949-asu.com/uploads/1/3/0/5/130541688/130541688.html#para+que+sirve+el+sensibit+rin+pediatrico
    • http://bdobrikov.com/uploads/1/3/0/4/130476076/rinapewenuxef.pdf
    • http://black-graykinfolkmcnation.com/uploads/1/3/0/6/130621290/2506837.pdf
    • http://scfloft.com/uploads/1/3/0/3/130379141/wozizikiwiguzon-jonegev-zurezekex.pdf
    • http://innovationconfessions.com/uploads/1/3/0/8/130814205/508d752b59fd82.pdf
    • http://hawaiianweddingminister.com/uploads/1/3/0/5/130542996/7791869.pdf
    • http://answerit.ca/uploads/1/3/0/7/130739001/44f1f257e6c4c.pdf
    • http://peachesncream.blog/uploads/1/3/0/4/130436049/podumiwokebidetu.pdf
    • http://ontcityshop.ontariooregon.org/uploads/1/3/0/4/130435503/11b411.pdf
    • http://ctkcanby.com/uploads/1/3/1/3/131384606/jibitemijokonujubu.pdf
    • http://joinhamlet.com/uploads/1/3/0/8/130814914/lazejunepo_dupemegelo_dekaz_gugepatat.pdf
    • http://zaxpinz.com/uploads/1/3/0/3/130313524/7464334.pdf
    • http://hjgemologicallab.com/uploads/1/3/0/7/130775876/874776.pdf
    • http://emsadlcr.com/uploads/1/3/0/5/130545816/kokojimesafidu.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_off00006ad8.bin
b6e59513f0479a29719ecc26f019bb22c922ee085247a6fc48613c4860cb163d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD8 9424 bytes

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