Malicious PDF — malware analysis report

Static analysis result for SHA-256 d17caa42ab6b7c38…

MALICIOUS

PDF

42.6 KB Authoring application: Adobe PDF Library 9.0
MD5: 50a70bcafa3c1a68024c1e95063dcec6 SHA-1: 95edc9cef3fc8f83e062813b0e143c30b5971f1b SHA-256: d17caa42ab6b7c382ff467349eb1db443f9abe0ccbcf79d18efea969e4d1040c
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDFs hosted on various suspicious domains, indicative of a link farm or phishing campaign. The heuristic 'SE_INVOICE_LURE' suggests the document's content is designed to trick the user into clicking these links, likely for malicious purposes such as malware distribution or credential harvesting. The ClamAV detection further confirms its malicious nature, classifying it as 'Pdf.Phishing.TtraffRobotInstall'.

Heuristics 4

  • 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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://restage.tv/uploads/1/3/0/4/130436033/xopofejasor.pdf
    • http://musicinthe.club/uploads/1/3/0/4/130479171/xudiwupemin.pdf
    • http://thebeautifulwomanjb.com/uploads/1/3/0/6/130639939/0a558e3.pdf
    • http://redthreadtraveler.com/uploads/1/3/0/3/130323425/96726606f.pdf
    • https://banugazezabikeg.weebly.com/uploads/1/3/0/5/130551981/powokizugip.pdf
    • http://soccerlegion.com/uploads/1/3/0/2/130291623/lomazuwudubo-zixeribojek-jemoke-fejovuluzik.pdf
    • http://mentorpreschools.com/uploads/1/3/0/5/130588294/1034432.pdf
    • http://mustardseedboutiquemass.com/uploads/1/3/0/4/130483983/motivopuzotered-votuzisupofa-fegawukatujis.pdf
    • http://tahoegoogletours.com/uploads/1/3/0/6/130604422/d4f43009a7b.pdf
    • http://mrowkaszprotawa.pl/uploads/1/3/0/4/130476687/waxaniketonuror-pumanomemimu.pdf
    • http://moodlabnewlife.nl/uploads/1/3/0/2/130270777/130270777.html#quotation+word+document+template

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000127f.bin
18f9d49927319a5b96b63556779e59fcda05de485e5c30e707c743beb613d537		 pdf-font-stream PDF embedded font (sfnt) at offset 0x127F 7476 bytes

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