Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b99f50bb7e5d7ca…

MALICIOUS

PDF

55.4 KB Authoring application: Karbon
MD5: 53aa48ba53de5b968414ce5421b4d4b9 SHA-1: 6bb51f2281e486eb747840822db660f0f27144bf SHA-256: 7b99f50bb7e5d7ca3f6ec1163936199d1d2191777eba3a11f6dfc5c2ef2aeabf
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, containing 31 external links, predominantly pointing to domains with numeric or generic slugs. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. The primary attack pattern involves luring users to click on these links, which likely lead to malicious content or phishing pages.

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

Extracted artifacts 2

Files carved from inside the sample during analysis.

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