Malicious PDF — malware analysis report

Static analysis result for SHA-256 42caf6a164402f22…

MALICIOUS

PDF

46.0 KB Authoring application: Karbon
MD5: 6106444c91c0e3448f0d6d4ead1c7570 SHA-1: 60ac7ef82743eaf240fb7d15a4c1f1cd9c8fe6e6 SHA-256: 42caf6a164402f22c8ea2bc6a707f4218205459e6480e659c5cec515d13a07d7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This technique is commonly used for SEO poisoning or to redirect users to malicious sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample.

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://brianpastor.com/uploads/1/3/0/4/130483811/382484.pdf
    • http://doublekdorpersheepranch.com/uploads/1/3/0/6/130639215/6283623.pdf
    • http://kidsonstagela.net/uploads/1/3/0/5/130539697/6503254.pdf
    • http://natalietremblay.ca/uploads/1/3/0/5/130550928/xamopaj.pdf
    • http://russausnatives.com.au/uploads/1/3/0/7/130740432/4633dc928f.pdf
    • http://www.koasports.com.au/uploads/1/3/0/3/130313102/vawedadixebo.pdf
    • http://millerschoolmaster.com/uploads/1/3/0/4/130478203/8320870.pdf
    • http://flconservator.com/uploads/1/3/0/4/130435577/wenevijajeru-xotibuvidodetuj.pdf
    • http://guadaluperodeoqueen.org/uploads/1/3/0/2/130272242/xejev.pdf
    • http://www.thescurlockgroup-promo.com/uploads/1/3/0/6/130604405/1187870.pdf
    • http://institutodelamemoria.org/uploads/1/3/0/5/130541356/7711449.pdf
    • http://glebl.bpmtc.com/uploads/1/3/0/2/130287852/texoxuxodelutepo.pdf
    • http://lafferty.photography/uploads/1/3/0/2/130287394/3446393.pdf
    • http://alvarezorganicfarms.org/uploads/1/3/0/4/130436298/bufonaxapimajuvuse.pdf
    • http://dudetree.com/uploads/1/3/0/8/130874610/sunelasu-lipofim-rodijotureme.pdf
    • http://emilysusan.com/uploads/1/3/0/3/130313200/lapina.pdf
    • http://www.fortunesfool.org/uploads/1/3/0/8/130874325/2be9ac.pdf
    • http://thenationaldeclaration.com/uploads/1/3/0/6/130639879/xajimubedimuji-wokulewulewuwoj-fupaku.pdf
    • http://www.utimcenter.com/uploads/1/3/0/5/130547812/130547812.html#scipy+stats+norm+multivariate+normal

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000547f.bin
c5dc1a2eb6a78f2d784fdb08610a176c9b82b72e93aa408e74b035f253f98aa4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x547F 8672 bytes

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