Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccf5a421a5a76e6a…

MALICIOUS

PDF

50.4 KB Authoring application: pdf-parser First seen: 2020-08-10
MD5: b0b4eb9d287345351496c5cbd5882788 SHA-1: a3c6cd78f3d4d2ab2562ec654459fbfb1d0a0043 SHA-256: ccf5a421a5a76e6a36bd07182116bfe6577e3eab1267a735ca08dfb7926a6659
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a phishing or redirection attempt. The ML classifier and ClamAV detection strongly indicate maliciousness. While no scripts were explicitly extracted, the presence of numerous external links points towards a likely attempt to download a second-stage payload or redirect the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://numinersfootball.com/uploads/1/3/0/2/130289690/1034251.pdf In PDF document text
    • http://ganbangparty.com/uploads/2020/01/29/123648.pdfIn PDF document text
    • http://mysecretlagoon.com/uploads/1/3/0/2/130289259/nudajejewotasad-doritasapofadi-xejif.pdfIn PDF document text
    • http://nortonbio.com/uploads/1/3/0/5/130588492/6424700.pdfIn PDF document text
    • http://trubaok.ru/uploads/2020/01/27/5836042.pdfIn PDF document text
    • http://mimiscoffeehouseofhardwick.com/uploads/1/3/0/6/130639765/c6cff0e74cd51be.pdfIn PDF document text
    • http://mylifeinconchas.com/uploads/1/3/0/6/130604002/6e0f2a052.pdfIn PDF document text
    • http://mtbakercrossfit.com/uploads/1/3/0/6/130639298/bokisegaka-lipusetiduxa-fiwutuxej.pdfIn PDF document text
    • https://jepizalobatise.weebly.com/uploads/1/3/0/2/130272394/1137747.pdfIn PDF document text
    • http://ontarioboudoir.com/uploads/1/3/0/3/130379239/sefezuxopapijezunaw.pdfIn PDF document text
    • http://sweetblooms4u.com/uploads/1/3/0/5/130588427/7624526.pdfIn PDF document text
    • https://zotixeziwuwazu.weebly.com/uploads/1/3/0/2/130289735/9763725.pdfIn PDF document text
    • http://primeamazon.net/uploads/1/3/0/6/130639123/130639123.html#flipkart+guess+what+answers+16+march+2019In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1396 9284 bytes
SHA-256: 11d4605956b126366b5dbae54ebd5908df00e3f6bb8845d298a25de82bb6e2c3
font_01_sfnt_off00007e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E6A 16164 bytes
SHA-256: 32b54217619f9438721b423dc2f4f4da0f78781b0811ea49af2be6b0310ecf56

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