Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeec6cced879960e…

MALICIOUS

PDF

60.3 KB Created: 2020-06-03 21:52:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 38c547b34b2c51b8c4bf84a9c3f49b37 SHA-1: 8a61af9506310d3af65d2d8158bb8ae8c1c0cde1 SHA-256: eeec6cced879960e4f20fcdb1588ba868bdd5fcd4388fa3d246539af137e4902
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

This PDF document contains a large number of external links, many of which point to other PDF files, suggesting a link farm or SEO abuse tactic. The document also explicitly mentions password protection for an archive, a common lure to bypass gateway security. The embedded URLs likely lead to further stages of the attack, possibly downloading additional malicious content.

Heuristics 4

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://74-123-75-90.mgwnet.com/uploads/1/3/1/1/131164273/131164273.html#comptia+cybersecurity+analyst+%2528csa+study+guide+download
    • http://findourfetishes.com/uploads/1/3/0/8/130873975/7755138.pdf
    • http://hussbrand.com/uploads/1/3/1/4/131454316/ditanemifuporudevu.pdf
    • http://wifiwv.club/uploads/1/3/0/2/130287997/jokefexe_duvitode_jakotu.pdf
    • http://aliasprivateinvestigations.com/uploads/1/3/0/6/130620635/pujanop.pdf
    • http://cierradmusic.com/uploads/1/3/0/5/130545753/dumixow.pdf
    • http://ecosattvasangha.com/uploads/1/3/1/6/131637839/1926111.pdf
    • http://camp-star.de/uploads/1/3/1/4/131452860/xozuxedunurirasa.pdf
    • http://organiclifedayspa.com/uploads/1/3/0/3/130324236/wolirapowuzej-raseb-fakasok.pdf
    • http://broadstreetbarkery.com/uploads/1/3/1/4/131408516/ruvanatawakej.pdf
    • http://74-123-75-90.mgwnet.com/uploads/1/3/1/1/131164273/terms.html
    • http://74-123-75-90.mgwnet.com/uploads/1/3/1/1/131164273/dmca.html
    • http://74-123-75-90.mgwnet.com/uploads/1/3/1/1/131164273/policy.html
    • https://dojenus.files.wordpress.com/2020/05/nalirevasezipomuda.pdf
    • https://bakovenorow.files.wordpress.com/2020/05/59376658948.pdf
    • https://nefemeze.files.wordpress.com/2020/06/vawamazix.pdf
    • https://xodugunoku.files.wordpress.com/2020/05/tixutemifuxuki.pdf
    • https://mosufazu.files.wordpress.com/2020/06/96861821736.pdf
    • https://fatoturomixo.files.wordpress.com/2020/06/polaxujosozelix.pdf
    • https://kulovop.files.wordpress.com/2020/06/60914175721.pdf
    • https://xekaviwaseti460218893.files.wordpress.com/2020/06/sigewanudaxavow.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a78a.bin
4b620e643fe45583c85a58ef7b713894e53eb17e12de344443984f79a1b0278d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA78A 11636 bytes
font_01_sfnt_off0000ceda.bin
c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCEDA 16204 bytes

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