Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a5ed808b3e4c655…

MALICIOUS

PDF

50.2 KB Created: 2018-06-11 08:53:38 -04:00 Authoring application: wkhtmltopdf 0.12.4 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 80c1d1e4a6c076f1281cdec4529edaec SHA-1: df0af0bead7ae141d089578568b30126e73014a0 SHA-256: 7a5ed808b3e4c655290c234d6010beeb9e44d5a9915b50032b70593688a09b14
102 Risk Score

Malware Insights

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

The PDF document is identified as a fake 'free download' SEO-poisoning lure. It contains multiple embedded URLs, including http://uncpbisdegree.com/download3.php?q=sony-d-ne329liv2-cd-players-owners-manual.pdf, which likely serves as a gateway to download a malicious payload. The document's content and structure strongly suggest a phishing attempt to trick users into downloading malware disguised as a manual.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9083

Heuristics 4

  • Fake 'free download' SEO-poisoning PDF critical PDF_SEO_FAKE_DOWNLOAD
    The ML classifier flagged this PDF AND it carries a visual download/call-to-action lure AND an off-domain server-side download-gateway link whose query string names a document payload. This three-signal conjunction is the fake-document / 'free PDF download' SEO-poisoning delivery pattern: the page is padded with benign decoy links to dilute classifier scores while funnelling the victim through the gateway to malware/scareware. Acting only on the conjunction keeps benign download-bearing PDFs from being misflagged.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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=sony-d-ne329liv2-cd-players-owners-manual.pdf PDF link annotation
    • http://uncpbisdegree.com/download4.php?q=sony-d-ne329liv2-cd-players-owners-manual.pdfIn PDF document text
    • http://isodat.de/sony/d/sony_d_ne329liv2_cd_players_owners_manual.pdfIn PDF document text
    • http://megama.de/sony/d/sony_d_ne329liv2_cd_players_owners_manual.pdfIn PDF document text
    • http://netrek.de/sony/d/sony_d_ne329liv2_cd_players_owners_manual.pdfIn PDF document text
    • http://cosell.de/sony/d/sony_d_ne329liv2_cd_players_owners_manual.pdfIn PDF document text
    • http://giseye.de/sony/d/sony_d_ne329liv2_cd_players_owners_manual.pdfIn PDF document text
    • http://cardup.de/sony/d/sony_d_ne329liv2_cd_players_owners_manual.pdfIn PDF document text
    • http://rawest.de/sony/d/sony_d_ne329liv2_cd_players_owners_manual.pdfIn PDF document text
    • http://taotic.de/sony/d/sony_d_ne329liv2_cd_players_owners_manual.pdfIn PDF document text
    • http://retinopod.com/upload/sony-d-ne329liv2-cd-players-owners-manual.pdfIn PDF document text
    • http://helgez.de/sony/d/sony_d_ne329liv2_cd_players_owners_manual.pdfIn PDF document text
    • http://avidis.de/sony/d/sony_d_ne329liv2_cd_players_owners_manual.pdfIn PDF document text
    • http://uncpbisdegree.com/1/space-light-and-harmony-the-story-of-crystal-hermitage.pdfIn PDF document text
    • http://riverside-resort.net/1/westlife-annual-2002-annuals.pdfIn PDF document text
    • http://riverside-resort.net/1/user-guide-canon-eos-300d-download.pdfIn PDF document text
    • http://uncpbisdegree.com/1/sullair-sr-1000-manual.pdfIn PDF document text
    • http://riverside-resort.net/1/zimsec-biology-question-papers-for-o-level.pdfIn PDF document text
    • http://riverside-resort.net/1/volkswagen-polo-instruction-manual.pdfIn PDF document text
    • http://uncpbisdegree.com/1/tales-of-chinatown.pdfIn PDF document text
    • http://uncpbisdegree.com/1/taxonomic-key-work-sheet-and-answers.pdfIn PDF document text
    • http://uncpbisdegree.com/1/solutions-manual-for-protective-relaying.pdfIn PDF document text
    • http://uncpbisdegree.com/1/spector-rebop5dlx-ex-guitars-owners-manual.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://0.r.bat.bing.com/?ld=d3fJGOizm2JRX_NXKzXeesLjVUCUxygchD9ZvpzGQCgLszOTSLom4z_MAakgwujcfcaagPXm_umupCwxq9indY0au6P5f8raWHCp7vZbfffvJWbknrlkthwjgFdreV7hgw06szdMaG02sSkvtSC5kZiTE2dnRK9LymxYAycmEAlo_4S6Oh&u=www.productmanuals.org%2flp%2f%3fcategory%3dSony%26utm_source%3dadcenter%26utm_medium%3dcpc%26utm_term%3dsony%2520owners%2520manual%26utm_network%3d%7b%7d%26utm_campaign%3dFM%2bIAC%2bBrands%2b02-08In 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://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000763d.bin
c928dc256b6540343c6cda5a0596c5f5640462f4b15f3f3a93a39215486245db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x763D 13888 bytes
font_01_sfnt_off0000a0de.bin
d98dce4519942bcce2869d9ed1ea603cfc1ad6f1802dff06de6df5e57ffb70c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0DE 9732 bytes

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