Malicious PDF — malware analysis report

Static analysis result for SHA-256 2337ab35e69d96b7…

MALICIOUS

PDF

38.2 KB Authoring application: Mobipocket Creator
MD5: 78880b725d5ddf7f66ebba97da9dc1fb SHA-1: 0b8fd4d8e18e82d281cfb1ccbf85bd2a919e43c8 SHA-256: 2337ab35e69d96b73b8718810800f5a9d68ceb11ac54ba41a685214e05c809b9
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, indicative of a link farm or phishing lure. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to redirecting users to phishing sites or distributing further malware. The document body itself is heavily obfuscated and contains references to Mobipocket Creator and Adobe, but does not provide clear user-facing text.

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://daviddemondphotography.com/uploads/1/3/0/7/130776492/pujavizigo-mulamug-suzokunuxal.pdf
    • http://crystalstone.org/uploads/1/3/0/2/130273842/mazaxano-surunovafe.pdf
    • http://brentbraveman.org/uploads/1/3/0/8/130874473/6244868.pdf
    • http://taozhiyao.com/uploads/1/3/0/7/130775560/kopupizurot.pdf
    • http://admin.hialeahgardens.org/uploads/1/3/0/6/130604803/vunuta_mokajavel_megapamazizilu.pdf
    • http://www.southsidedavis.com/uploads/1/3/0/5/130588617/4772355.pdf
    • http://arcanathegame.com/uploads/1/3/0/3/130323182/fotiwaborimabuxamow.pdf
    • http://marcellastraub.com/uploads/1/3/0/6/130621059/gufemorij_kopop.pdf
    • http://magicaladventurestravelbystacy.com/uploads/1/3/0/6/130604574/963ea.pdf
    • http://nesyb.net/uploads/1/3/0/6/130639528/fokufuwamejikus.pdf
    • http://bakasolomon.com/uploads/1/3/0/6/130640072/504159e03e8dac3.pdf
    • http://momentumva.com/uploads/1/3/0/5/130539763/xituvozezo.pdf
    • http://christianawt.com/uploads/1/3/0/8/130873902/3a028e944f78a17.pdf
    • http://www.gregorysdentrepair.com/uploads/1/3/0/4/130436163/wusanapemonopa.pdf
    • http://chloehorie.com/uploads/1/3/0/6/130604539/6195777.pdf
    • http://74-123-78-199.mgwnet.com/uploads/1/3/0/7/130740218/130740218.html#abbyy+finereader+14+full+version+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003a4d.bin
d107ed78cf72265307eecc29ce8635ed12edd841edc36935ff1cede10b2d7a7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3A4D 8060 bytes

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