Malicious PDF — malware analysis report

Static analysis result for SHA-256 38f89000cc13b053…

MALICIOUS

PDF

43.0 KB Created: 2020-03-29 10:21:11 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 2806f14ad248f2812b8cb6adcfafeb7b SHA-1: 3fdfbceb3ee0e3e8a2fa9c987e67dc2c9f872ee2 SHA-256: 38f89000cc13b053e534ce562d06e2b85dc59fc6eb965675c33628afc619a3bc
72 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many pointing to other PDF files, indicative of a link farm. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior. The presence of a 'download button' lure further suggests an intent to trick users into downloading potentially malicious content. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://mysoundcollective.com/uploads/1/3/0/7/130775871/130775871.html#puppy+contract+examples
    • http://moncadas.net/uploads/1/3/0/5/130550805/wavenotuveliwimij.pdf
    • http://www.memberships.jacwellness.com/uploads/1/3/0/5/130589042/gidivesetube.pdf
    • http://rhsimb.org/uploads/1/3/0/5/130588614/3751082.pdf
    • http://tompkinsrealestateco.com/uploads/1/3/0/8/130814003/1362552.pdf
    • http://mta-sts.kiropraktikaistra.com/uploads/1/3/0/5/130550763/5723531.pdf
    • http://www.beautifullykraftedjewels.com/uploads/1/3/0/9/130969458/3313d469b18765.pdf
    • http://sofiyacattery.nl/uploads/1/3/0/3/130324164/pudijusunil.pdf
    • http://selvesgroup.com/uploads/1/3/0/7/130776418/4420427.pdf
    • http://thegrayorder.com/uploads/1/3/0/5/130588393/603bd7fdecd9.pdf
    • http://tradesupercenterclassifieds.com/uploads/1/3/0/4/130488172/1370730.pdf
    • http://theloveboxcompanyonline.com/uploads/1/3/0/2/130288661/jajer-tivor.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_off00007dc0.bin
4fa499fcf9fe09f3ad397c8e9c0b829c62cb572ac7de5f0dd7d61530cba4e24e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC0 8780 bytes

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