Malicious PDF — malware analysis report

Static analysis result for SHA-256 022e6cb78b0d177c…

MALICIOUS

PDF

36.0 KB Authoring application: pdf-parser
MD5: e6985aafd0542a2edf33e1ce9ea19d29 SHA-1: e47d5e3a9b0fefb4212993f98bc046ecfb39e0b9 SHA-256: 022e6cb78b0d177c8d983927e77c2664668ea7d9ed634a4c5855e8e90bc50c25
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, many of which point to other PDF files, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier further support its malicious nature. The document body's deceptive message about reading material is a lure to encourage users to click these links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://orlandoforeclosurelaw.net/uploads/1/3/0/8/130874030/finafoge.pdf
    • http://otamassagechairsoutlet.com/uploads/1/3/0/5/130590273/3420776.pdf
    • http://hlproducts.net/uploads/1/3/0/3/130379204/d8d4c.pdf
    • http://mail.tullyrosen.com/uploads/1/3/0/8/130874386/521f3364531.pdf
    • http://www.thriftposition.org/uploads/1/3/0/8/130873802/zovizukamibe-ravejutife.pdf
    • http://f-ckprobably.com/uploads/1/3/0/7/130739719/1709036.pdf
    • http://kirstencarabin.com/uploads/1/3/0/5/130588923/dinalagiwifate.pdf
    • http://twynetrip.com/uploads/1/3/0/6/130639230/dojozokowow.pdf
    • http://cdc-tmsolutions.co.uk/uploads/1/3/0/6/130639107/3910330.pdf
    • http://kimsportacademy.eu/uploads/1/3/0/7/130775858/d90cd5.pdf
    • http://www.kingislandartist.com/uploads/1/3/0/6/130639739/majofu-vedakekon-jejetawa.pdf
    • http://plankandforge.com/uploads/1/3/0/6/130604918/duwuwoxulud-rojujemilasetej-wulewired-zejijewaxanij.pdf
    • http://albertarescue.com/uploads/1/3/0/7/130776594/d2de230ef9df7.pdf
    • http://nrareservations.com/uploads/1/3/0/8/130874495/sefajixiz_xexivip_kiduxu_rotajijoza.pdf
    • http://qky.brdge.org/uploads/1/3/0/5/130590462/130590462.html#yojana+magazine+telugu+pdf+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000321f.bin
f2b9bc36ae0b87beba7b6abe56c78300c35d3003a3280e4ab9f3a5cfe60af478		 pdf-font-stream PDF embedded font (sfnt) at offset 0x321F 8068 bytes

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