Malicious PDF — malware analysis report

Static analysis result for SHA-256 efab76dfa6affd29…

MALICIOUS

PDF

38.9 KB Authoring application: Karbon
MD5: 591c7a373f9d70e913ff9fb50472ccdb SHA-1: bfea6c084858427c30f2775b72a5406c881f17b5 SHA-256: efab76dfa6affd29e676c74f6f1cca68b7fc37aa0933206eb1f49e49ebfbfc58
120 Risk Score

Malware Insights

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

The PDF file exhibits a critical heuristic firing for a link farm, containing numerous embedded URLs pointing to other PDF files. This technique is often used for SEO manipulation or to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection.

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://spokanefamilyheritagevideos.com/uploads/1/3/0/4/130488069/xapefasotosigejenop.pdf
    • http://qigongfirenze.com/uploads/1/3/0/4/130476917/1b5d45.pdf
    • http://koala-d.com/uploads/1/3/0/4/130489185/demozepusab.pdf
    • http://wabashtees.com/uploads/1/3/0/6/130605393/840cb74094c2dde.pdf
    • http://adtest.site/uploads/1/3/0/5/130590567/zodaxaf.pdf
    • http://eliteculinarychef.com/uploads/1/3/0/6/130604042/zuvepot.pdf
    • http://midiowaworkingdog.com/uploads/1/3/0/5/130589413/5b8b5.pdf
    • http://bambusaglobal.com/uploads/1/3/0/3/130323342/tufelali.pdf
    • http://askthetutor.ca/uploads/1/3/0/3/130323295/1244095.pdf
    • http://fijikerus.dddich.ru/uploads/2020/01/28/dokusononuxizag-kojipewutize-tiboxulem.pdf
    • http://mipalmi.com/uploads/1/3/0/4/130488696/6476811.pdf
    • http://themusiclaboratory.com/uploads/1/3/0/5/130550704/b1fb19c2c6e.pdf
    • http://professionalbeveiliging.nl/uploads/1/3/0/6/130604230/8680438.pdf
    • http://ozervisioncare.net/uploads/1/3/0/2/130288430/minumuje.pdf
    • http://allstatepavingandmasonry.com/uploads/1/3/0/6/130621413/nifuzeju-kitaximejisujib-dudosimu.pdf
    • http://techconnectwest.net/uploads/1/3/0/6/130604036/8d292c1.pdf
    • http://ddlgverse.com/uploads/1/3/0/5/130540176/devapobenofa_nagip_mumes_rulusolubej.pdf
    • http://seattlebreastfeedinghikes.com/uploads/1/3/0/6/130604564/ab5a1d6.pdf
    • http://garyschuen.com/uploads/2020/01/28/26fadf3fe5.pdf
    • http://savianflaviusdesigns.com/uploads/1/3/0/5/130550926/8cb08b99267f30.pdf
    • http://fusitu.mir-tattoo.ru/uploads/2020/01/28/leguligikoka.pdf
    • http://my-safety-box.com/uploads/1/3/0/4/130483617/d87cc864d5b.pdf
    • http://beantownscience.com/uploads/1/3/0/5/130590241/8987544.pdf
    • http://antiviruseprotectserviceonline.site/uploads/1/3/0/6/130620556/130620556.html#milady+theory+workbook+answers+chapter+11

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000016b3.bin
f9d7ce84e75155852036c90389fb57f76994f98aeaf836fd690c3d63c4f4c084		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16B3 7916 bytes

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