Malicious PDF — malware analysis report

Static analysis result for SHA-256 472fa8303d51fad2…

MALICIOUS

PDF

56.0 KB Created: 2018-06-11 08:24:48 -04:00 Authoring application: wkhtmltopdf 0.12.4 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 71d6137d4c2af9649c8c7ec7630296ff SHA-1: 7ea94d7266be0254869a73b3e71db6b0f2447d0c SHA-256: 472fa8303d51fad282d6fc4429885c94f622869c0e6990a76be33857bd72f73f
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded URLs and a heuristic firing for a visual download button, suggesting a social engineering lure. The primary URLs point to external resources hosted on 'uncpbisdasdegree.com' and an IP address, indicating a potential distribution point for malicious content. The presence of these elements suggests the document is designed to trick the user into downloading a further payload.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4794

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • PDF carries a PHP-gateway SEO-spam PDF link farm medium PDF_SEO_PHP_GATEWAY_LINK_FARM
    PDF contains four or more clickable links whose target is a `.php` gateway with a multi-word search-PHRASE document slug embedded after it (e.g. 'index.php?.../binary+options+trading+nz.pdf' or 'pdf.php/cialis-dosage-side-effects.pdf'). Legitimate PHP-served documents use a filename or numeric id, not a search-query phrase, so this is the generated SEO link-farm shape — pharma / binary-options / 'free download' spam that ranks for queries and routes users into payload/redirect chains. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://uncpbisdegree.com/download3.php?q=tom-swift-collection-volume-two-five-novels-in-one-volume.pdf In PDF document text
    • http://uncpbisdegree.com/download4.php?q=tom-swift-collection-volume-two-five-novels-in-one-volume.pdfIn PDF document text
    • http://cosero.de/tom/swift/tom_swift_collection_volume_two_five_novels_in_one_volume.pdfIn PDF document text
    • http://128.199.155.214/file-pdf/tom-swift-collection-volume-two-five-novels-in-one-volume.pdfPDF link annotation
    • http://fmantz.de/tom/swift/tom_swift_collection_volume_two_five_novels_in_one_volume.pdfIn PDF document text
    • http://mobely.de/tom/swift/tom_swift_collection_volume_two_five_novels_in_one_volume.pdfIn PDF document text
    • http://asiyah.de/tom/swift/tom_swift_collection_volume_two_five_novels_in_one_volume.pdfIn PDF document text
    • http://fehlix.de/tom/swift/tom_swift_collection_volume_two_five_novels_in_one_volume.pdfIn PDF document text
    • http://riverside-resort.net/1/singapore-celebrates.pdfIn PDF document text
    • http://riverside-resort.net/1/titanic-scavenger-hunt-questions-and-answers.pdfIn PDF document text
    • http://riverside-resort.net/1/solution-manuals-mechanics.pdfIn PDF document text
    • http://riverside-resort.net/1/supersonic-home-theater-owners-manual.pdfIn PDF document text
    • http://riverside-resort.net/1/thats-a-promise-promises-1-victoria-klahr.pdfIn PDF document text
    • http://riverside-resort.net/1/the-deep-end-of-ocean-cappadora-family-1-jacquelyn-mitchard.pdfIn PDF document text
    • http://riverside-resort.net/1/solution-manual-for-mathematical-modeling-meerschaert.pdfIn PDF document text
    • http://riverside-resort.net/1/the-prison-industrial-complex-and-the-global-economy.pdfIn PDF document text
    • http://riverside-resort.net/1/study-guide-for-praxis-0511.pdfIn PDF document text
    • http://riverside-resort.net/1/sony-mdr-rf930k-headphones-owners-manual.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://976349.r.bat.bing.com/?ld=d3-eCPDarlqNBu2PWnq7vyojVUCUyybV8qEqBZkHC4AHmmuu_QBYFE8V7Mvh9TFr6K81VEShRVs3n6A2jn86LIAlrU0kdE1_za7BjVWdO8k3nZEtrYAEEkzIQuVnwif7wVbr7WnuQ-_fui8O4MSY3Qmx0yYnY4rd0VtjBrU3rFwoAPk2ji&u=https%3a%2f%2fwww.toms.com%2fblakes-bio%3futm_source%3dbing%26utm_medium%3dcpc%26utm_term%3d%252Btoms%2520article%26utm_campaign%3dUS%2520Blake%2520Mycoskie%2520-%2520BMM%26utm_content%3ds_dc%7cpcrid%7c%7bcreative%7d%7cpkw%7c%252Btoms%2520article%7cpmt%7cb%7c%26msclkid%3d%7bmsclkid%7dIn PDF document text
    • https://www.amazon.com/Tom-Swift-Collection-Five-Novels-ebook/dp/B001FWZ0KCIn PDF document text
    • https://www.amazon.com/Kindle-eBooks/b?ie=UTF8&node=154606011In PDF document text
    • https://www.amazon.com/Literature-Fiction-Kindle-eBooks/b?ie=UTF8&node=157028011In PDF document text
    • https://156000343.r.bat.bing.com/?ld=d3KDFCKXEbImZ_hZ4VfSkB2zVUCUxEYL1y9ewDtrUhzf6-J7jrIlK9nyYmj5G6jolzWaQgVKtmM2zlwrS3q3mTJngVlw9D85tbrMgcvuNMgDhsYeE2j9nROTetRdz_8UZyfir78zZ2p6BqENM0E8OecekkwJg0ECmFBjql1tFLpvkwK_AX&u=http%3a%2f%2fwww.amazon.com%2fs%2f%3fie%3dUTF8%26keywords%3dfree%2btom%2bswift%2bbooks%26tag%3dmh0b-20%26index%3ddigital-text%26hvadid%3d78202816195857%26hvqmt%3db%26hvbmt%3dbb%26hvdev%3dc%26ref%3dpd_sl_3x5uqfv0d3_bIn PDF document text
    • https://157104623.r.bat.bing.com/?ld=d35GsR5rQYUTSbsDQA33BQbjVUCUzlRSlpavEEqtRc155QP9au6LxYc174AqO537V0zci3yj5jMt6X3pzuPxvFGuu8KhlKaG6qUAruTOAxUnJ3I0lhOxtq_x7bcA3eaCm8qYogLuOfTwSoT_a4wVDpBO-3n5RRzKXZtuTNvgPaoU8S3TZd&u=https%3a%2f%2fwww.guardengine.com%2fge12%2fsearch%2fweb%3ffcoid%3d417%26fcop%3dtopnav%26fpid%3d27%26q%3dTom%2520Swift%2520Books%26msclkid%3d%7bmsclkid%7dIn PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=617350In PDF document text
    • http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409In PDF document text
    • https://go.microsoft.com/fwlink/?linkid=868922In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=617297In PDF document text
    • https://174078293.r.bat.bing.com/?ld=d3rVAr3Cqb-g4Y6W0pFBS1fTVUCUxgL6iDe1J4d_0_upO49RW4d9gLovm_vpDZ95_0A5ONJKnwlw3ePMPeyO8VhdrU5DsBq0qRjckHyXKycz02hZJE5g-TUVf98IBmNWoNdcKhIWMxnxDuSVszEICb6ik_8K-hWaiOVDbYdXx3XsUqvRfd&u=https%3a%2f%2fwww.gopher.com%2fgo.02%2fsearch%2fweb%3fq%3dTom%2520Swift%2520Books%26ad.network%3do%26ad.keyword%3dTom%2520Swift%2520Books%26ad.creative%3d%7bcreative%7d%26ad.position%3d%7badposition%7d%26ad.placement%3d%7bplacement%7d%26ad.matchtype%3db%26ad.aceid%3d%7baceid%7d%26ad.ismobile%3d%26ad.device%3dc%26ad.devicemodel%3d%7bdevicemodel%7d%26ad.adgroupid%3d1260040405503664%26cid%3d309251308%26ad.segment%3dgo.02%26utm_source%3dbing%26msclkid%3d%7bmsclkid%7dIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008921.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8921 14872 bytes
SHA-256: 547ee496e2a570fe76e13bff0b00d0a80f0e31856be6e191de4e230f0aa5fc37
font_01_sfnt_off0000b6e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6E1 10272 bytes
SHA-256: dc482c43725b770927fa229621c6dacc5ce0a5f7b1d5693c395edc2936a02dc2

Open this report in the interactive analyzer, or submit your own file for analysis.