Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d12216d72bad2cb…

MALICIOUS

PDF

36.5 KB Created: 2020-05-15 14:48:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 728a9cf8ccb212e216492cc48b4cd68d SHA-1: 77c4d5b9df4042a372c9ab3fe39b95fa8ee71499 SHA-256: 2d12216d72bad2cb99b7fb6236195baa8fa7ecd97c543a17417e28bac61e5c69
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious websites. The document body contains text related to 'Caller tune app jio', suggesting a lure to trick users into clicking the embedded links. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates a malicious intent to host a large number of links on potentially compromised or low-reputation domains.

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://us4-admin-mailchimp.com/uploads/1/3/0/5/130541817/130541817.html#caller+tune+app++jio
    • http://articuloabc.com/uploads/1/3/0/5/130590105/4100502.pdf
    • http://etchedkc.com/uploads/1/3/0/4/130436513/fb19900cdcd.pdf
    • http://woodwardmagnetschool.com/uploads/1/3/0/4/130479472/zikona_nurajilufes.pdf
    • http://baracom.org/uploads/1/3/0/4/130477131/7ee08350cfcb73.pdf
    • http://bayareasofareviews.com/uploads/1/3/1/4/131438086/3670126.pdf
    • http://srgonline.us/uploads/1/3/0/3/130323392/bixibi-vibofikija-lanijelebujesis.pdf
    • http://alexnicholsconsulting.com/uploads/1/3/0/8/130874691/tutigaxuzo.pdf
    • http://lacompagniecandle.com/uploads/1/3/1/8/131856456/4580347.pdf
    • http://firsthotpotny.com/uploads/1/3/0/5/130588205/voluxig.pdf
    • http://c21sweyerrealestatecareer.com/uploads/1/3/0/7/130776787/pidovepum_kabesizasefim.pdf
    • http://ellipsesensemble.com/uploads/1/3/0/7/130775447/7912341.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_off00005a64.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A64 1800 bytes
font_01_sfnt_off000062f0.bin
117ce04f0b134786c68eec8f7d01d7f76d9f0c5a206d0f4d62dead9256d90f4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x62F0 10420 bytes