Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d01f8ecb1ad94f…

MALICIOUS

PDF

46.6 KB Authoring application: PDFedit First seen: 2020-09-24
MD5: 2d35bd5e2ecf596e8ba532adb3bd4454 SHA-1: d05d275492c58debc7130ef5708d9c588b25099d SHA-256: c5d01f8ecb1ad94f8477734f4cb9d11d61d36c356018c4992bfcfdd7879264fa
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 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 distribute malicious content. ClamAV detected this as Pdf.Phishing.TtraffRobotInstall-7605656-0, and a machine learning classifier also flagged it with high confidence. The document body was not parsable, but the heuristic firings strongly indicate a malicious intent related to link farming and potential phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://optodev.org/uploads/1/3/0/7/130740073/2505076.pdf In PDF document text
    • http://costaparadiso.holiday/uploads/1/3/0/5/130589147/934c4c8fc771.pdfIn PDF document text
    • http://ngbeautymakeupstore.com/uploads/1/3/0/5/130589035/d40655.pdfIn PDF document text
    • http://uncommongracepediatrictherapy.com/uploads/1/3/0/4/130435679/kopefel_farax_nipipopajep.pdfIn PDF document text
    • http://www.anthonymarchianofilms.com/uploads/1/3/0/6/130620760/lijakoxumoma.pdfIn PDF document text
    • http://rick8.com/uploads/1/3/0/7/130775997/dolizesido.pdfIn PDF document text
    • http://gle-services.com/uploads/1/3/0/6/130604427/5903256.pdfIn PDF document text
    • http://mocopridefestival.org/uploads/1/3/0/6/130639042/951c855358540.pdfIn PDF document text
    • http://magna-core.net/uploads/1/3/0/4/130436492/7627327.pdfIn PDF document text
    • http://missfass.com/uploads/1/3/0/6/130605422/fovewugosuwunexazam.pdfIn PDF document text
    • http://elevitae.com/uploads/1/3/0/6/130604956/76f88fe5f7979.pdfIn PDF document text
    • http://bellesandbeausball.com/uploads/1/3/0/3/130324278/pupanofefula-donebadezad-gopabanaruxop.pdfIn PDF document text
    • http://alpinecbd.co/uploads/1/3/0/7/130738861/d24fb317c1226f4.pdfIn PDF document text
    • http://www.snobcorn.com/uploads/1/3/0/4/130479123/9343421.pdfIn PDF document text
    • http://pauldini.net/uploads/1/3/0/5/130588763/rofinaxokisebafewira.pdfIn PDF document text
    • http://cretanoliveoilfarm.gr/uploads/1/3/0/6/130621832/wegenuwezamig_kepoxowapufi_xoredanotetivib_kevikubojedep.pdfIn PDF document text
    • http://notmypresidenttrump.net/uploads/1/3/0/7/130738531/9616607.pdfIn PDF document text
    • http://cladnh.com/uploads/1/3/0/7/130740562/kejosegim.pdfIn PDF document text
    • http://mywnydreamhome.com/uploads/1/3/0/2/130289493/8627439.pdfIn PDF document text
    • http://digimatics.net/uploads/1/3/0/4/130435658/ff2e1.pdfIn PDF document text
    • http://websiteamonth.com/uploads/1/3/0/4/130488429/mokamidas.pdfIn PDF document text
    • http://mamasgracebirthservices.com/uploads/1/3/0/3/130379523/130379523.html#apple+airport+extreme+configureIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C6 16392 bytes
SHA-256: 75142bf01d0ab32ce01be6024841912efe79c09672bdbf6a70e796af82a37893
font_01_sfnt_off00004813.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4813 2600 bytes
SHA-256: 41d5c9cb4d60b7530e3cfd93a78efd430fe179aa57a8296e74fb8a971da4b0ee
font_02_sfnt_off000053fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53FA 9464 bytes
SHA-256: c34a247c6430928eecd0d8b25a416a1f0bb6c31f6096b7230a8c940c198aee23

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