Malicious PDF — malware analysis report

Static analysis result for SHA-256 36185ca39a22f894…

MALICIOUS

PDF

50.6 KB Created: 2020-07-28 20:26:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e0e6d299e245bb50dfaf804a297e96f SHA-1: 3db725403c4c84b68e78999fe05303ce0351c4c0 SHA-256: 36185ca39a22f8943a682683db590ad64773d27edc1bbf34dfc96b695b8139f7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing for PDF_SEO_LINK_FARM. One of these links, https://ttraff.com/pify?keyword=apna+time+aayega+dj+song+free, is flagged as malicious by a PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body contains garbled text but includes a reference to 'Apna time aayega dj song free', suggesting a lure. The primary attack pattern involves redirecting users to malicious infrastructure.

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.com/pify?keyword=apna+time+aayega+dj+song+free
    • http://files.mainstreetenid.org/uploads/1/3/0/7/130776611/zokewelizot.pdf
    • http://files.thebestinmusic.com/uploads/1/3/2/6/132695915/vufirav_bowoxupexifi_xuxapevata.pdf
    • http://files.thirdcharm.ca/uploads/1/3/1/4/131437246/817418.pdf
    • http://files.jeffgrothedesign.com/uploads/1/3/0/9/130969061/kurenudawaxorilo.pdf
    • http://files.jeffgrothedesign.com/uploads/1/3/0/9/130969061/kurenudawa
    • https://cdn.shopify.com/s/files/1/0433/7015/2088/files/wamaluxumex.pdf
    • https://cdn.shopify.com/s/files/1/0428/5369/5647/files/vuxatowalunajavajipep.pdf
    • https://cdn.shopify.com/s/files/1/0428/7466/7164/files/91221452394.pdf
    • https://cdn.shopify.com/s/files/1/0435/1878/7736/files/15365829627.pdf
    • https://cdn.shopify.com/s/files/1/0428/0044/7655/files/togonofaxopubopozirus.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/91868346369.pdf
    • https://cdn.shopify.com/s/files/1/0430/2916/8282/files/gasixesusupanozatorow.pdf
    • https://cdn.shopify.com/s/files/1/0428/2544/9628/files/tawawujugapixomuxusa.pdf
    • https://cdn.shopify.com/s/files/1/0427/7764/1116/files/61405163578.pdf
    • https://cdn.shopify.com/s/files/1/0440/7987/4213/files/jibojoreno.pdf
    • https://cdn.shopify.com/s/files/1/0431/1089/1676/files/gexivogoveg.pdf
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/25552712095.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_off00006bd8.bin
04b24fbcd761b8d454ddc037bed64663719e244c740e407712a5fb0b1dc07bda
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD8 5284 bytes
font_01_sfnt_off00007dc2.bin
e8bca0aad6a67084338c631dfae92d1462cd103eb1c8d91013b762e088899f37
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC2 14396 bytes
font_02_sfnt_off0000ab23.bin
242aba3ea7c6c29c9be94c4dafb9e22c355833695bffb9aabf825fc10c6f7a9b
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB23 5060 bytes