Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c7178ed390f47d…

MALICIOUS

PDF

40.9 KB Authoring application: Poppler-utils
MD5: 4ced2a36be3d3901780db046e183e6db SHA-1: 505fc584f10ab3b430977696e3148f5fd0bc35ee SHA-256: 49c7178ed390f47d737f015d3af8c0496425e5508f5ff49335c05f729ebffcd3
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, a technique commonly used for SEO poisoning and phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The document body, though heavily obfuscated, mentions 'Reduce pdf size adobe acrobat standard', suggesting a lure to trick users into clicking malicious links.

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://wallymarket.com/uploads/1/3/0/5/130551129/7683446.pdf
    • http://purebarretexasstrong.com/uploads/1/3/0/7/130776068/2454451.pdf
    • http://yardpick.com/uploads/1/3/0/3/130313000/3002993.pdf
    • http://jennycarroll.com/uploads/1/3/0/6/130620379/b0736e6d.pdf
    • http://consultoriasrojas.com/uploads/1/3/0/5/130542829/001c0.pdf
    • http://floppycat.net/uploads/1/3/0/6/130620841/2805873.pdf
    • http://adultchildrelationshipmatters.co.uk/uploads/1/3/0/2/130289421/2688817.pdf
    • http://howtogetasmallbusinessloan.net/uploads/1/3/0/6/130603834/a2e2e64a.pdf
    • http://orockrotorua.co.nz/uploads/1/3/0/4/130476066/faaf331264befd.pdf
    • http://drrodchiropractic.com/uploads/1/3/0/7/130776661/4541852.pdf
    • http://allisonyelton.com/uploads/1/3/0/2/130272336/duvaduwivalato.pdf
    • http://mkefacepaint.com/uploads/1/3/0/7/130739060/4053022.pdf
    • http://ndhomesinc.com/uploads/1/3/0/5/130550762/327ddb.pdf
    • http://daksfalk.com/uploads/1/3/0/7/130776196/1503b539edb.pdf
    • http://jf1850.com/uploads/1/3/0/2/130271068/niropeniz.pdf
    • http://bhpromove.com/uploads/1/3/0/5/130551697/goxuju-logupe-fixawokufalale-magibalumatedi.pdf
    • http://time2gotravelwithsuzan.voyagerwebsites.com/uploads/1/3/0/6/130620464/130620464.html#reduce+pdf+size+adobe+acrobat+standard

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004596.bin
7d99b2cfdee557364a4d5d67577e9bd0180bc92aeac428d2123a07acfbfaefa0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4596 7548 bytes

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