Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0ca2e3b0716af27…

MALICIOUS

PDF

42.4 KB Authoring application: Scribus
MD5: 3a446bfab9e13d95b551ac224363f3e0 SHA-1: 9be7eba4599e840dcb42c932687e2b9062808a29 SHA-256: c0ca2e3b0716af2722e678fd689c82bd161d1e04bdf6238469055e46edd36cbf
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 external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The document body, though heavily corrupted, contains fragments related to medical procedures, which could be a lure. The primary attack pattern involves directing users to a network of suspicious URLs hosted on various domains.

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://thechinahustle.us/uploads/1/3/0/6/130639436/4752791.pdf
    • http://tasteparty.jpjsweets.com/uploads/1/3/0/7/130738650/2734281.pdf
    • http://ds4you.tech/uploads/1/3/0/4/130436242/5061044.pdf
    • http://fwhhelpinghands.com/uploads/1/3/0/5/130544754/kozokesedumozudi.pdf
    • http://northbridgepropertyrights.com/uploads/1/3/0/6/130620327/xugususi.pdf
    • http://nwm2.club/uploads/1/3/0/5/130590499/xolokofate.pdf
    • http://iusedtobetechnical.com/uploads/1/3/0/3/130313208/982436.pdf
    • http://webmail.snackaddictedhi.com/uploads/1/3/0/6/130621717/4775472.pdf
    • http://meetmyfuture.com/uploads/1/3/0/6/130639896/591459.pdf
    • http://zenlockyt.com/uploads/1/3/0/4/130475982/sepolitiwa.pdf
    • http://mindbodymend.com.au/uploads/1/3/0/2/130289320/fivala.pdf
    • http://sparksdrone.com/uploads/1/3/0/4/130489226/werodixotimoge_duwel_zejimurefolesix_fisavir.pdf
    • http://nationalchristianhousingconference.org/uploads/1/3/0/8/130813496/sipetasusogexox.pdf
    • http://www.lightbrothers.com/uploads/1/3/0/9/130969018/5398270.pdf
    • http://annastewartibarra.net/uploads/1/3/0/8/130814631/6074134.pdf
    • http://www.114beverlydrive.com/uploads/1/3/0/5/130541944/1384733.pdf
    • http://cwegcommunity.org/uploads/1/3/0/3/130323110/1984477.pdf
    • http://jupita.com/uploads/1/3/0/2/130287239/katabo-repixifetoben-didenifakuzex.pdf
    • http://linquer.net/uploads/1/3/0/6/130621244/d5f7ad871d79ec.pdf
    • http://affordablevisualconcepts.com/uploads/1/3/0/5/130589281/dujigiju-bifegadelovid.pdf
    • http://musingsofageek.com/uploads/1/3/0/2/130289797/pabalamidej.pdf
    • http://www.indi-dent.org/uploads/1/3/0/5/130546024/130546024.html#belly+button+hernia+surgery+procedure

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000043f6.bin
f0d458a008e70e61192786fdab36947cb46ac4db62e4dda2df3faef90921a7e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43F6 8508 bytes

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