Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cd3856974770d96…

MALICIOUS

PDF

46.3 KB Created: 2020-04-02 10:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 76da743ec60f26ecbcb5588094b23dac SHA-1: ce75fa9ebace227fe62ab59084371c09c2f3298f SHA-256: 2cd3856974770d964924e6716d870b995bc63e30501fa1c61ad8ad2bb23f973a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of external links to other PDF files hosted on various domains. This pattern is indicative of SEO spam or a link farm designed to distribute malicious content or drive traffic to compromised sites. The document body itself is largely obfuscated but contains references to URLs, reinforcing the link-farm nature of the attack. No scripts were extracted, limiting the analysis of direct 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://kindwarriorwork.com/uploads/1/3/0/7/130775372/130775372.html#cardiac+drugs+list
    • http://masterofthedomains.com/uploads/1/3/0/6/130639294/madaxubuf.pdf
    • http://anniesimagination.com/uploads/1/3/0/7/130775031/1133f713a406.pdf
    • http://allurlife.com/uploads/1/3/0/2/130288661/jufotir-remopuloxuf-xafiliwojil.pdf
    • http://create.center/uploads/1/3/0/2/130288579/ba09538.pdf
    • http://dinquel.com/uploads/1/3/0/6/130620293/gorofowe.pdf
    • http://stratmarc.org/uploads/1/3/1/3/131383977/rovulex.pdf
    • http://lamspto.org/uploads/1/3/0/7/130739221/tizivoleri_mikuvuxexetupo.pdf
    • http://tntgeneralservices.net/uploads/1/3/0/4/130476171/regunobe-ruvujifafupijim-pumunegusinopa.pdf
    • http://azulmusicstore.com/uploads/1/3/0/9/130968967/1bfd8c0e.pdf
    • http://teaganmurphymusic.com/uploads/1/3/0/6/130603979/129b5d9.pdf
    • http://hollywilliamscopy.com/uploads/1/3/0/9/130969945/zesewajinosir-bituja-vopiranu.pdf
    • http://oawtrucking.com/uploads/1/3/0/4/130477805/tiberuw.pdf
    • http://tiffanyleeofficial.com/uploads/1/3/0/7/130775269/f7d5f80b.pdf
    • http://getphonesex4free.com/uploads/1/3/1/3/131384099/2107656.pdf
    • http://yukonpix.com/uploads/1/3/0/5/130550882/e2905390e.pdf
    • http://ospreyinvestors.com/uploads/1/3/0/3/130323131/127e0d96d06a5.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_off00008da9.bin
84822fa4c48226d84fffda485c4fada263175a5f3752c09467d2801b806da338		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA9 7864 bytes

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