Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3de1a9ab01b9349…

MALICIOUS

PDF

46.8 KB Created: 2020-08-04 00:59:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a09678541f83cc8389ddf8e86a4a0fd SHA-1: 809dc559c0b4bf37158de9b86c0c49886ac8e7ea SHA-256: b3de1a9ab01b9349b855877b09b5afe355ab6a7eba4c0e0ea09660afbd9ed0b4
120 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as an Aadhar card form download. It also features a link farm of 17 SEO-optimized PDF files hosted on Shopify, with the primary redirector pointing to 'https://ttraff.cc/pify?keyword=aadhar+card+form+download+pdf+file'. This indicates a social engineering attempt to lure users to malicious infrastructure, likely for further payload delivery or phishing.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 https://ttraff.cc/pify?keyword=aadhar+card+form+download+pdf+file
    • http://files.saudibuilding.site/uploads/1/3/1/0/131071297/3efab2bb45878c2.pdf
    • http://patipal.royaleliteweeksrental.com/uploads/1/3/1/6/131607163/94222fbf3c9025.pdf
    • http://files.vcgallery.org/uploads/1/3/1/8/131856381/rokererukirejakifu.pdf
    • http://files.alberto-micheletti.net/uploads/1/3/0/7/130776120/74a4da9.pdf
    • http://files.oursaviourchurch.org/uploads/1/3/2/7/132740804/dujugiduxetigi_kabed.pdf
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/36583055085.pdf
    • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/tumina.pdf
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/61656076718.pdf
    • https://cdn.shopify.com/s/files/1/0450/6674/8056/files/algebra_2_common_core_big_ideas_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/2458/8701/files/parilas.pdf
    • https://cdn.shopify.com/s/files/1/0432/3957/1616/files/34137022603.pdf
    • https://cdn.shopify.com/s/files/1/0429/2047/6828/files/848997804.pdf
    • https://cdn.shopify.com/s/files/1/0431/4071/0566/files/givixarigudipolemuxol.pdf
    • https://cdn.shopify.com/s/files/1/0431/0731/9974/files/darosozobobuxajafir.pdf
    • https://cdn.shopify.com/s/files/1/0429/6451/7023/files/32075968948.pdf
    • https://cdn.shopify.com/s/files/1/0431/9435/1778/files/faxusipox.pdf
    • https://cdn.shopify.com/s/files/1/0429/9449/9743/files/giwazapinabugawidabo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068f5.bin
df62b6569e713c31e0dbf0c9f6200a2e39fdfa08b0645422e470ea62f42be24d
pdf-font-stream PDF embedded font (sfnt) at offset 0x68F5 5300 bytes
font_01_sfnt_off00007ae4.bin
b16d46fd78c94d07a85beec51fcdb63da870b35ad358148fe57a0ba64fa7f011
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE4 8792 bytes
font_02_sfnt_off0000992e.bin
017b841c0be3bec6e6144bbf5d186c3668b406bc64a43aff2197aaf169ee6358
pdf-font-stream PDF embedded font (sfnt) at offset 0x992E 5776 bytes