Malicious PDF — malware analysis report

Static analysis result for SHA-256 bea5f3f664da36ae…

MALICIOUS

PDF

43.4 KB Authoring application: OpenOffice.org
MD5: 324c8fa5a02a566c3ca339252b9ffe4b SHA-1: 453f3866ab541859cc78d7e38d22059000b0c42b SHA-256: bea5f3f664da36ae5e094347fb597f329791490d211489aec63e4d2e31bfa802
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is heavily obfuscated and does not provide clear textual lures.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://fallongeiger.com/uploads/1/3/0/6/130604476/9976774.pdf
    • http://atriumgrandballroom.com/uploads/1/3/0/8/130814579/refeno.pdf
    • http://allaboutalyssam.com/uploads/1/3/0/6/130621548/paginosu.pdf
    • http://niwawriters.net/uploads/1/3/0/6/130639719/giket.pdf
    • http://mondayswithmike.com/uploads/1/3/0/2/130288510/8613670.pdf
    • http://entretienmenagergagnon.com/uploads/1/3/0/8/130874475/pavoxaker.pdf
    • http://globalsupplyanddistribution.com/uploads/1/3/0/4/130476004/wefafaz.pdf
    • http://catholicsonfire.net/uploads/1/3/0/9/130969759/nabepe-forapibalo-kuvawolimalaz-mefun.pdf
    • http://crowlitmag.com/uploads/1/3/0/6/130621300/livupikulejowiz.pdf
    • http://www.lifesacredelements.com/uploads/1/3/0/6/130620451/linokebewebun.pdf
    • http://gilded-concepts.com/uploads/1/3/0/2/130272072/fukewazuw_golinuxamasuzez_lulajotajevudi_kureweluf.pdf
    • http://sparkleheads.com/uploads/1/3/0/5/130589338/810e36.pdf
    • http://experiencetrailhead.com/uploads/1/3/0/4/130491418/6099513.pdf
    • http://psychotherapeute-paris.net/uploads/1/3/0/5/130542769/rolubaro.pdf
    • http://pferde-ernaehrung.com/uploads/1/3/0/7/130739379/2c6ef.pdf
    • http://mirasolrehab.net/uploads/1/3/0/3/130379316/kixuderasa-vovofaka-batodipe-ramig.pdf
    • http://natashiapandther.com/uploads/1/3/0/4/130489080/sitipetiwe.pdf
    • http://pofadd-voicecall.com/uploads/1/3/0/6/130621384/boforojodo-nufitosimexemu-dasurejikesadug.pdf
    • http://cmm-programmer.com/uploads/1/3/0/7/130775762/ramek_xifevotukasike_dogogexu_bapafelepibib.pdf
    • http://cfhancock.org/uploads/1/3/0/3/130323592/xibazaxokuxax_tixilafafelig_wasowevoxulu.pdf
    • http://cosras.weascend.org/uploads/1/3/0/7/130738738/gatenolab-butodunajiv-joriv-zopiwuganuxak.pdf
    • http://x0807796xstreamtravel.xsideas.com/uploads/1/3/0/5/130547486/130547486.html#viral+conjunctivitis+pregnant

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a61.bin
23c39270a606557b7b2a3a1dd2d51debb430b2d60f4bbd1cc91f9357ee82d3e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A61 7468 bytes

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