Malicious PDF — malware analysis report

Static analysis result for SHA-256 005a7b946140467c…

MALICIOUS

PDF

46.0 KB Authoring application: Inkscape
MD5: 1ca361551defe35cfb56691ce1b95202 SHA-1: 22274ec65b3d869bc7f398253d5ff8018b88f362 SHA-256: 005a7b946140467c7f2b5f286af1252e9ce3e7a6705a024d12237e919fe8d7e2
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to host malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs are the primary indicators of compromise, suggesting a link-farming or redirection attack.

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 https://boluwixoliwuxuj.weebly.com/uploads/1/3/0/5/130544034/372e8.pdf
    • https://losadulisov.weebly.com/uploads/1/3/0/4/130476747/8ca92.pdf
    • http://lumcraft.net/uploads/1/3/0/5/130590180/linijigikidugu.pdf
    • http://tiwa.serdyukov.pro/uploads/2020/01/28/zadikarebefejezu.pdf
    • http://zotu.marketdota.ru/uploads/2020/01/28/6839128.pdf
    • http://sistemasappcc.com/uploads/1/3/0/3/130379145/mowuto.pdf
    • http://dateloveers.online/uploads/2020/01/27/xukegurog-bajevu.pdf
    • http://sowes.sber-afla.info/uploads/2020/01/29/sovekezegonozevime.pdf
    • http://zeloz.dekocasa.com/uploads/2020/01/29/e1bcd.pdf
    • http://nafe.1000bitcoinhomepage.com/uploads/2020/01/27/acc6b3128cf1085.pdf
    • http://tawuzu.event-nsk.com/uploads/2020/01/27/5620551.pdf
    • https://lafonapof.weebly.com/uploads/1/3/0/5/130543333/vazidosuvet.pdf
    • https://vovutigoxedani.weebly.com/uploads/1/3/0/4/130483273/vonevudipav-foverivit-wosedokebedemot.pdf
    • https://kevonetevumen.weebly.com/uploads/1/3/0/5/130550732/9645027.pdf
    • http://xoduvolu.lookru.ru/uploads/2020/01/27/wawesonuwuf_zilizome.pdf
    • https://mejozivu.weebly.com/uploads/1/3/0/5/130588403/zewasivuwoza.pdf
    • https://kunazokeb.weebly.com/uploads/1/3/0/2/130274349/1337304.pdf
    • http://cosmeticswithsteph.com/uploads/1/3/0/2/130270953/130270953.html#jim+cornette+alice+radley
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014b0.bin
c104b7d64c09935b560c73427345c9394f4b3a65b8b6b8497aa4e7a306a620d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14B0 8488 bytes
font_01_sfnt_off00006bed.bin
0bcb8714eeee09f3a0b97cfa4268358194ea58a2d09b0ea1e98cdb863a7a445a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BED 16404 bytes

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