Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f7ee3f1627bee4f…

MALICIOUS

PDF

29.9 KB Authoring application: Mobipocket Creator
MD5: fe1a785e3c0479f86bba26ce78ade8c5 SHA-1: 9753f0a7286d1eb27d353c8a1e8a036a7a0fc373 SHA-256: 9f7ee3f1627bee4f909bc7e487eb15fd594bb8d74046e32aca24cb11867d1896
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, many of which point to other PDF files hosted on various domains. The document body text, while containing some garbled characters, mentions downloading media content, suggesting a lure to download further malicious files. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a phishing or malicious download campaign.

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://soccerskillschools.com/uploads/1/3/0/3/130313339/guridulisovuzegiwufu.pdf
    • http://newkids.co.uk/uploads/1/3/0/5/130550663/1398368.pdf
    • http://lets-split.com/uploads/1/3/0/3/130313176/tifitonem_jibevo.pdf
    • http://120lakeshoredrive.com/uploads/1/3/0/4/130483498/sutuxuti.pdf
    • http://cbdisolateuses.com/uploads/1/3/0/5/130551182/voxederopawiwotaroju.pdf
    • http://scentedpens.com/uploads/1/3/0/6/130640040/jafuwazukowuvodunami.pdf
    • http://thebannersheet.com/uploads/1/3/0/5/130588712/kotesubegu.pdf
    • http://magentabackpack.net/uploads/1/3/0/2/130272481/lisemefisap.pdf
    • http://anxietyfreepregnancy.com/uploads/1/3/0/6/130621280/130621280.html#download+boruto+the+movie+english+su

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001184.bin
d8e4448eb84c9724ff3b5b3d83941904e4fcb66744ff0bf2e0e6f6f50647250b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1184 7388 bytes

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