PDF malware analysis — malicious · 9df15b87c43a1980

MALICIOUS

PDF

41.8 KB Authoring application: QPDF

MD5: 1577add27e94685da3b8dad61f4d6ff1 SHA-1: ab61738855f5380e3248a545ab3a5a1164ebeb85 SHA-256: 9df15b87c43a1980ff9920b8a17b114018f9e28c01827a77718483f9ed3c7d52

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The heuristic 'PDF_SEO_LINK_FARM' directly points to the attack pattern of creating a link farm, with the first URL being http://timothydlthompson.net/uploads/1/3/0/8/130814161/cebcd6fa.pdf.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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://timothydlthompson.net/uploads/1/3/0/8/130814161/cebcd6fa.pdf
- http://janstravelandcruise.com/uploads/1/3/0/3/130323235/livogi.pdf
- http://mindandhomeinsurance.com/uploads/1/3/0/3/130323260/lewiruvi.pdf
- http://www.amoerickman.com/uploads/1/3/0/6/130621928/gonilepom_nefap_zipolupegujekiw.pdf
- http://llnoble.net/uploads/1/3/0/8/130814575/nunulalu_durufegaxob_puborelogom_metamegivanon.pdf
- http://dckninternational.com/uploads/1/3/0/5/130551033/kipaba.pdf
- http://www.vaultheistgeelong.com.au/uploads/1/3/0/5/130551922/bijamajokunumoji.pdf
- http://maxsocialsecurityforlife.com/uploads/1/3/0/7/130738933/folidaguzegode-gifimur.pdf
- http://samuelchazalmartin.com/uploads/1/3/0/6/130605017/nutof.pdf
- http://www.floorexpertslimited.com/uploads/1/3/0/2/130291575/bebomataxejo.pdf
- http://74-123-73-223.mgwnet.com/uploads/1/3/0/2/130289466/newagolejutaton-pagofozobotob.pdf
- http://upwholesaleflooring.com/uploads/1/3/0/6/130603692/6f94cc.pdf
- http://brentmichaelchow.com/uploads/1/3/0/2/130288875/4720871.pdf
- http://motivatedqueen.com/uploads/1/3/0/6/130639165/zovegipipafijil_bepuvodowane.pdf
- http://mysteryshoppingonlinejob.com/uploads/1/3/0/5/130539599/metarifabugiliz.pdf
- http://besttreeservicememphis.com/uploads/1/3/0/2/130270804/naxopolafufevub_pivumaf_ganagipez_junolesejok.pdf
- http://beccabecca.shop/uploads/1/3/0/6/130639275/duxepuxezeleledufawu.pdf
- http://digitalfoxagency.com/uploads/1/3/0/6/130604074/83849eeb.pdf
- http://access-acumen.com/uploads/1/3/0/8/130815097/2a27f5aefb59.pdf
- http://www.klimb4kidz.org/uploads/1/3/0/3/130379164/1862594.pdf
- http://myprizeonline.com/uploads/1/3/0/4/130476493/lokarilozaremopo.pdf
- http://5pointauto.com/uploads/1/3/0/7/130739557/130739557.html#math-drills.com+adding+mixed+fractions
- http://www.vaultheistgeelong.com.au/uploads/1/3/0/5/130551922/bij

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000035ee.bin` `e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x35EE	2652 bytes
`font_01_sfnt_off000041c8.bin` `e753dda65604936f9bf031cd91f0759e49315e284b8a756b90902a8dde37ee56`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x41C8	8008 bytes

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