Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d7dc7e0dc6adb7…

MALICIOUS

PDF

42.1 KB Authoring application: LibreOffice
MD5: 49398403c50328b93ffcf6252e4b975f SHA-1: dc411a59e104a2ea0c312e919d423a98320e3eaf SHA-256: d1d7dc7e0dc6adb7f68bc4598bb0d44eda15de9bd5be049ac1474d13c7a895ce
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to phishing or malware distribution sites. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. The document body itself contains garbled text and technical terms related to catalysis, which appears to be a lure to disguise the malicious nature of the embedded 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://britishwhitecattleaustralia.com/uploads/1/3/0/5/130588277/reruxaxipifotoxutoda.pdf
    • http://ednenterprisesllc.com/uploads/1/3/0/6/130621048/1126361.pdf
    • http://bearversusbaby.net/uploads/1/3/0/8/130874330/8e31308e3.pdf
    • http://firstsourceveterans.com/uploads/1/3/0/5/130542770/xawasowuvenuroro.pdf
    • http://nfloo.com/uploads/1/3/0/3/130313454/wonunavovegejumuku.pdf
    • http://ohiocastleday.com/uploads/1/3/0/7/130739232/4fc189c664a2.pdf
    • http://midwestlightingllc.com/uploads/1/3/0/7/130740138/suxiru.pdf
    • http://jusdesock.com/uploads/1/3/0/6/130604361/jotuvamijuzekej.pdf
    • http://buckfinishes.com/uploads/1/3/0/6/130603836/2840589.pdf
    • http://newtouchstone.com/uploads/1/3/0/4/130475997/sulap.pdf
    • http://misbailes.com/uploads/1/3/0/3/130323337/130323337.html#industrial+application+of+homogeneous+catalysis

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000123b.bin
c13ab6fe841a083710d2bd8547904bae5069d0127faca4bad05a8934a52b5ec3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123B 7624 bytes
font_01_sfnt_off00005db1.bin
4b9d5ed4380496a01ba159619359c68b929b4365047eb67ca52b427bb012304a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB1 16132 bytes

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