Malicious PDF — malware analysis report

Static analysis result for SHA-256 304018a345e62b87…

MALICIOUS

PDF

44.9 KB Authoring application: Poppler-utils First seen: 2020-09-24
MD5: d10a54435534e899f209f4fdc83947c2 SHA-1: f1174c5882a89d47162d9c05a3b02279c21a38a6 SHA-256: 304018a345e62b873e58fcbdb53f147f269031c4236bd0febda054b8f609ab8e
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or content distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://mikkiscreations.shop/uploads/1/3/0/2/130274368/8513428.pdf In PDF document text
    • http://batazakek.pulkovo3.info/uploads/2020/01/27/1162542.pdfIn PDF document text
    • http://77thscouts.ca/uploads/1/3/0/4/130477310/1369588.pdfIn PDF document text
    • http://1113studios.net/uploads/1/3/0/5/130551981/fewikev.pdfIn PDF document text
    • http://wabashtees.com/uploads/1/3/0/4/130488331/napedudav.pdfIn PDF document text
    • http://shopamysattic.net/uploads/1/3/0/5/130552034/1df2ef4b30a6.pdfIn PDF document text
    • http://shannonsharper.com/uploads/1/3/0/3/130379818/ea32b88325e2.pdfIn PDF document text
    • http://purebarretexasstrong.com/uploads/1/3/0/5/130551343/5220379.pdfIn PDF document text
    • https://pomanipusutuluw.weebly.com/uploads/1/3/0/5/130539305/c3f96b.pdfIn PDF document text
    • http://mrbojandals.com/uploads/1/3/0/4/130435857/cfa42c7635c.pdfIn PDF document text
    • http://oasistoyhaulers.com/uploads/1/3/0/5/130551651/tinudurofin.pdfIn PDF document text
    • http://mindforyouth.com/uploads/1/3/0/6/130639082/40642828d.pdfIn PDF document text
    • http://regenesisgroup.net/uploads/1/3/0/6/130604938/rutadubuzitif.pdfIn PDF document text
    • http://blackoakcreativetest.com/uploads/1/3/0/2/130271132/2c22ce26dd4.pdfIn PDF document text
    • http://dad.tht-premiere.online/uploads/2020/01/27/xudetasuzelobulutis.pdfIn PDF document text
    • http://auroraweddingandevents.co.uk/uploads/1/3/0/2/130272086/rilijuvatuto.pdfIn PDF document text
    • http://thealth.ru/uploads/2020/01/27/730e8fd68.pdfIn PDF document text
    • http://ackertech.org/uploads/1/3/0/6/130621305/afee8acc29e4c.pdfIn PDF document text
    • http://aprendizajeactivobrumiel.com/uploads/1/3/0/4/130483836/130483836.html#can%27+t+format+sd+card+mac+osIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14FD 8356 bytes
SHA-256: b9cb24f76559253ebc3368985fe86a8b4a0190d762fb7af54d780f4f9ecb4cba
font_01_sfnt_off0000676e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676E 16384 bytes
SHA-256: ac49849b978058f48725d089179747450f7987fdfd4cddbc63fac11af8b99083