Malicious PDF — malware analysis report

Static analysis result for SHA-256 77dc37cbe82a70f0…

MALICIOUS

PDF

44.5 KB Created: 2020-03-29 22:23:05 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3bf282b57eae8064d89d99b45d374c9e SHA-1: 0fa6637b50044f6689db913b3ec8dbd81bab4f51 SHA-256: 77dc37cbe82a70f00c5c4b6c0cf0125c95b6e1b0287fdda4e1bb3f294466475d
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified as a PDF_SEO_LINK_FARM heuristic. The document body text is mostly garbled but contains a title related to education in Colombia, suggesting a lure. The primary intent appears to be directing users to a vast network of other PDF files hosted on various domains, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

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.
  • 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://colddiamnd.com/uploads/1/3/0/7/130740180/130740180.html#linea+de+tiempo+de+la+evolucion+de+la+educacion+a+distancia+en+colombia
    • http://thesouthernladyblog.com/uploads/1/3/1/4/131409236/wokuruz.pdf
    • http://rightkind.tools/uploads/1/3/0/8/130814483/7018251.pdf
    • http://dominicciociola.com/uploads/1/3/0/3/130312913/8294399.pdf
    • http://mrchadleypw.ca/uploads/1/3/1/4/131437849/77949e5.pdf
    • http://romsagency.com/uploads/1/3/0/3/130313346/wedadipetusati.pdf
    • http://buenoscience.com/uploads/1/3/0/4/130483074/cf2a6fe3bef.pdf
    • http://lotuspureskin.com/uploads/1/3/0/2/130287971/412db2f1.pdf
    • http://smhsstantonmobilehomesales.com/uploads/1/3/0/9/130969169/duxutaronukuxa.pdf
    • http://jacobmoehrmanportfolio.com/uploads/1/3/1/3/131379231/2be549f367cf4.pdf
    • http://bulletmotorsport.com/uploads/1/3/0/4/130435734/sujakufigapaw.pdf
    • http://amatteroftastecatering.net/uploads/1/3/0/5/130588875/9917867.pdf
    • http://scienceofstory.net/uploads/1/3/0/4/130488816/b19463a0680.pdf
    • http://uottawaaikido.ca/uploads/1/3/1/0/131070761/41381c.pdf
    • http://hotcliptoday.com/uploads/1/3/0/7/130776587/c853f0dce18787.pdf
    • http://skillboxconstruction.com/uploads/1/3/0/7/130776657/4697339.pdf
    • http://climaxdesigners.com/uploads/1/3/0/2/130289800/rinapusum_wojotas_vovabora_vewupipitovon.pdf
    • http://gearedmoon.com/uploads/1/3/1/4/131408502/7520933.pdf
    • http://cpoaklandpresentation.com/uploads/1/3/0/5/130589131/jesotazefujevaku.pdf
    • http://ibnpercy.com/uploads/1/3/0/4/130436289/bidetunibopatunefiwa.pdf
    • http://harvestgroundcafe.com/uploads/1/3/0/4/130476413/a38e96c9023fe2d.pdf
    • http://jungkyookimkorea.com/uploads/1/3/0/8/130814279/2544344.pdf
    • http://urbanphones.org/uploads/1/3/0/5/130590403/linasiwalunem.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f55.bin
8b1781cf9b727005f0023d26faa40c140cf8523ec09ea0ff18da51de9e27772e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F55 9712 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.