Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b85b5a9b5905828…

MALICIOUS

PDF

39.3 KB Authoring application: OpenOffice.org
MD5: d42976f37b40e181345528d4cdebeaa8 SHA-1: 568020512a55526140830dff6f0f1ca43aa0bbf3 SHA-256: 5b85b5a9b5905828969c4ca85c04820ff7b42d9a30e2e5e4254b9527c8cfc2d3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. No scripts were extracted, but the sheer volume of linked PDFs suggests a coordinated effort to distribute further content.

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://hawkeyehomeinspectionmd.com/uploads/1/3/0/5/130542710/numup_mikaleralut.pdf
    • http://scstrainingofohio.com/uploads/1/3/0/5/130538949/bixanufidipal.pdf
    • http://alumcanyonediting.org/uploads/1/3/0/5/130588710/xitabifopasip-jefozavafaj.pdf
    • http://cpanel.foodsempire.com/uploads/1/3/0/8/130873939/2376739.pdf
    • http://nashvilleperformancepsych.net/uploads/1/3/0/4/130488669/rukelefen_nevuwaloba_mojuxidamezu.pdf
    • http://cafecancunco.us/uploads/1/3/0/3/130323401/bajefunigurokura.pdf
    • http://helpfulblueshirts.com/uploads/1/3/0/6/130639551/padadidi.pdf
    • http://uitests.com/uploads/1/3/0/6/130639548/digexijuse.pdf
    • http://onshoresurfshops.com/uploads/1/3/0/2/130273752/pilufes.pdf
    • http://actwithpurpose.ca/uploads/1/3/0/7/130738644/ladimavebijeze.pdf
    • http://qlcommunitychallenge.crowdrisetoolkit.com/uploads/1/3/0/5/130543305/5029362.pdf
    • http://functionoutsidethebox.com/uploads/1/3/0/7/130775772/2580039.pdf
    • http://www.smithsofballinagh.com/uploads/1/3/0/5/130551467/suxaxusuviludozikip.pdf
    • http://navigatelifetransitions.com/uploads/1/3/0/5/130546000/zudesis.pdf
    • http://mobilizerrs.com/uploads/1/3/0/4/130477135/74b5a5f2f1bc1.pdf
    • http://easternfiltration.com/uploads/1/3/0/8/130815582/6bd2b76.pdf
    • http://antiageingsolutions.com/uploads/1/3/0/5/130550855/xivubopoxefazev.pdf
    • http://bayleighscloset.co/uploads/1/3/0/4/130483673/67f838d92.pdf
    • http://rorosglassartandcrystalskulls.com/uploads/1/3/0/3/130380037/puboxapo_jodux_sujefadi_bipawupunufano.pdf
    • http://accademiale5sinergie.com/uploads/1/3/0/8/130813765/19a58ffc71652.pdf
    • http://njstrengthcamp.com/uploads/1/3/0/6/130603789/1645349.pdf
    • http://blacklocustpastures.com/uploads/1/3/0/6/130640231/8fdf70f3b3b0775.pdf
    • http://thewarriorsoftruth.com/uploads/1/3/0/2/130292110/tiradunurulikulub.pdf
    • http://www.kondra.ca/uploads/1/3/0/9/130969543/130969543.html#radial+nerve+glide+exercise

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003677.bin
8fecb9e9c66dca812239f5ebd49685b2c7379e5573e7568d7038279f1a743707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3677 8132 bytes

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