Malicious PDF — malware analysis report

Static analysis result for SHA-256 acb646d0649c32b4…

MALICIOUS

PDF

44.2 KB Authoring application: Karbon
MD5: 6683c4bc393cb32cb07e659bf5a46782 SHA-1: ab0585932639eca620327524b6ab1125516de76d SHA-256: acb646d0649c32b468fa81a86cc91931b9b2912cf1084eff406bf00c03c4889e
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 spam or to redirect users to phishing or malware distribution sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://5pointauto.com/uploads/1/3/0/8/130813899/xogekesu.pdf
    • http://whatyouwantcreations.com/uploads/1/3/0/7/130738949/negozajup-pupose-zupebeboja.pdf
    • http://tombakercpa.com/uploads/1/3/0/2/130271128/werexub.pdf
    • http://lillauras.com/uploads/1/3/0/4/130476678/0749bc3d.pdf
    • http://fernandoporretta.com/uploads/1/3/0/5/130540824/fonetowepunasesamov.pdf
    • http://magickjournal.com/uploads/1/3/0/5/130551330/702fa2628.pdf
    • http://sissytrainingschool.com/uploads/1/3/0/3/130323120/4493679.pdf
    • http://greonav.com/uploads/1/3/0/4/130483123/2045484.pdf
    • http://www.superccattle.com/uploads/1/3/0/5/130588345/1084057.pdf
    • http://www.shylanelson.com/uploads/1/3/0/5/130540049/8332896.pdf
    • http://www.kidmarvel.net/uploads/1/3/0/4/130477090/ruvufutino.pdf
    • http://botakandalodge.com/uploads/1/3/0/5/130588698/2826464.pdf
    • http://donotpanicitsorganic.com/uploads/1/3/0/4/130489054/9423428.pdf
    • http://februaryvioletwedding.com/uploads/1/3/0/6/130639136/pibasekim-rokerivinuduzut.pdf
    • http://momentum-behavioral.com/uploads/1/3/0/6/130603894/welowon.pdf
    • http://accepteen.com/uploads/1/3/0/6/130621480/0dc2890.pdf
    • http://mail.shadesofpink.nl/uploads/1/3/0/5/130551567/zedokut_pibidaro_rikirob_numiv.pdf
    • http://stayplussuites.com/uploads/1/3/0/7/130775539/130775539.html#function+of+gastrocnemius+and+soleus

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003b8e.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3B8E 16036 bytes
font_01_sfnt_off0000523d.bin
3291526a0f62c3c80e813a0aae69249e893908da444ff12cf832cda0a5ca1bf5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x523D 7252 bytes

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