Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4fca50bb9c285ab…

MALICIOUS

PDF

38.9 KB Authoring application: Soda PDF
MD5: 7a68f82996fd049d6469898761379bfa SHA-1: e34aef06255e1e24fe8ae91de9f701bef57c2058 SHA-256: f4fca50bb9c285ab83b11e9b5e085c46b667fb5d0e42cb0bf5e6fafad84e4830
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'Pdf.Phishing.TtraffRobotInstall' ClamAV detection. The document body itself is heavily obfuscated and does not provide clear textual lures. No scripts were extracted from this sample.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://thecassandracomplexgallery.com/uploads/1/3/0/6/130639105/d0485d7377.pdf
    • http://rhinesville.com/uploads/1/3/0/5/130588529/3610268.pdf
    • http://immediate-insight.com/uploads/1/3/0/6/130604286/xelep.pdf
    • http://nybellhouse.com/uploads/1/3/0/7/130739032/kinakarovubobebifavu.pdf
    • http://cohesivecode.org/uploads/1/3/0/6/130621187/nebeg.pdf
    • http://mondobeauty.com.au/uploads/1/3/0/7/130739726/1c0ab187.pdf
    • http://dailytech.tips/uploads/1/3/0/5/130542982/sidelovozimo_bawagexebota_mikewupeginug_notujowok.pdf
    • http://artcenterla.com/uploads/1/3/0/7/130775800/dijulitodivam.pdf
    • http://geigerair.com/uploads/1/3/0/6/130621435/8536776.pdf
    • http://kleanoz.com/uploads/1/3/0/7/130775634/180089.pdf
    • http://jvwritingv4.club/uploads/1/3/0/6/130639513/wexoniporirup-faduf.pdf
    • http://aiafricatravel.co.za/uploads/1/3/0/5/130552017/wegem.pdf
    • http://finleywyatt.com/uploads/1/3/0/5/130551461/munarur-sepawali-xuroxidexed.pdf
    • http://www.belladraws4paws.com/uploads/1/3/0/7/130775827/cbedc4c1.pdf
    • http://reconnect-with-yourself.com/uploads/1/3/0/7/130775589/jibaxudosimukufam.pdf
    • http://www.pivotalchocolates.net/uploads/1/3/0/5/130551399/4c5baf05c1.pdf
    • http://zs-development.com/uploads/1/3/0/2/130272369/lodazisimobuz_vikumuxadar_fariz_zogexid.pdf
    • http://www.centralchurchofthenazarene.com/uploads/1/3/0/2/130273803/4bf7a1eb7342916.pdf
    • http://pronaffiliates.net/uploads/1/3/0/7/130738861/2403453.pdf
    • http://scottcarlic.com/uploads/1/3/0/2/130291712/jotijewaj.pdf
    • http://michellentherapy.com/uploads/1/3/0/3/130379319/riloribibiz.pdf
    • http://1s8ne0.salon225.com/uploads/1/3/0/2/130287269/130287269.html#arithmetic+sequence+and+geometric+formulas
    • http://nybellhouse.com/uploads/1/3/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003601.bin
1104ec1716244ea173d243711bc7f9acb59fd618f618ea3a8bc0c5cc65f8653f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3601 8336 bytes

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