Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b99f50bb7e5d7ca…

MALICIOUS

PDF

55.4 KB Authoring application: Karbon First seen: 2020-09-24
MD5: 53aa48ba53de5b968414ce5421b4d4b9 SHA-1: 6bb51f2281e486eb747840822db660f0f27144bf SHA-256: 7b99f50bb7e5d7ca3f6ec1163936199d1d2191777eba3a11f6dfc5c2ef2aeabf
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical alert for a large number of embedded external links, indicating a link farm. ClamAV identified it as Pdf.Phishing.TtraffRobotInstall, and an ML classifier also flagged it as malicious. The embedded URLs likely lead to further malicious content or phishing sites, consistent with a phishing or SEO spam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://merrick-global.com/uploads/1/3/0/6/130639291/26eb0.pdf In PDF document text
    • http://mrbrownmoderngent.com/uploads/1/3/0/5/130543976/xivorotoluva_ziwarebolubeb_wodatu_nusewasafumat.pdfIn PDF document text
    • http://cyberaffairs.com/uploads/1/3/0/7/130739020/6313097.pdfIn PDF document text
    • http://oildale.news/uploads/1/3/0/4/130489706/dejiduti.pdfIn PDF document text
    • http://dh.banjodanielmusic.com/uploads/1/3/0/3/130313249/d47e8bcf5a.pdfIn PDF document text
    • http://www.comfortwithhygge.com/uploads/1/3/0/6/130604798/5829925.pdfIn PDF document text
    • http://www.dianemarrapodi.com/uploads/1/3/0/6/130604928/nasixob_pedowukawetumo_dexinasizowiw.pdfIn PDF document text
    • http://wpgcotw.com/uploads/1/3/0/4/130477719/repekusidup-diveguzoxibufab.pdfIn PDF document text
    • http://pandago.com/uploads/1/3/0/2/130288567/f5dde9461950.pdfIn PDF document text
    • http://routestoknowledge.com/uploads/1/3/0/4/130488503/706784.pdfIn PDF document text
    • http://adams-aardvarks.com/uploads/1/3/0/5/130588816/loruzis.pdfIn PDF document text
    • http://ccraftwork.com/uploads/1/3/0/6/130605116/bopofazo.pdfIn PDF document text
    • http://helpdomore.com/uploads/1/3/0/2/130287988/665276.pdfIn PDF document text
    • http://insidedentalequipment.net/uploads/1/3/0/6/130621868/3525286.pdfIn PDF document text
    • http://dimwit.biz/uploads/1/3/0/5/130588905/bevopamumolu.pdfIn PDF document text
    • http://www.panagiotisandreoglou.com/uploads/1/3/0/6/130639885/9869369.pdfIn PDF document text
    • http://elsllops2.myvetpetconsulting.com/uploads/1/3/0/5/130589208/lifonefifed.pdfIn PDF document text
    • http://charmgurl.com/uploads/1/3/0/6/130604770/kegodusomenoxon-watogafuwekob-mibad.pdfIn PDF document text
    • http://www.phillyaphrodite.com/uploads/1/3/0/4/130436258/c961c.pdfIn PDF document text
    • http://myforeclosurelawyer.net/uploads/1/3/0/6/130604279/26e89.pdfIn PDF document text
    • http://purgatoirevalleyfoundation.org/uploads/1/3/0/6/130620565/8fa7f76615976c.pdfIn PDF document text
    • http://www.acutabovelawncare.org/uploads/1/3/0/6/130640028/sonunobibodope.pdfIn PDF document text
    • http://levy.team/uploads/1/3/0/6/130603931/1086199.pdfIn PDF document text
    • http://www.dontforgetdon.com/uploads/1/3/0/6/130622091/9353314.pdfIn PDF document text
    • http://merlene.ca/uploads/1/3/0/2/130291474/2036030.pdfIn PDF document text
    • http://olddominionsausage.gammaxiques.org/uploads/1/3/0/5/130539279/130539279.html#homero+la+iliada+fragmentoIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1118 9396 bytes
SHA-256: 88cab0150dc16383efb9f6338fae807071e6f84023eee1a0b35cf048e950c90f
font_01_sfnt_off00008932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8932 3396 bytes
SHA-256: bce20319bae158bde839d39624ec17ce2ee43366ee9a42d8de4d492f9ec28a85

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