Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff96530db17a7480…

MALICIOUS

PDF

38.8 KB Created: 2020-07-25 00:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4064268bd716c2f9e668b780634d59ac SHA-1: 2755c7ad46b497b304d4927e01cf3cc61d11b064 SHA-256: ff96530db17a7480324a53b74f211684d4374272d0f312587415f5e8ea4a1374
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary URL points to a redirector service, likely to obscure the final destination. The document body is heavily obfuscated and unreadable, but the presence of a link farm and a malicious redirector strongly suggests a phishing or SEO manipulation attack pattern.

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/wb?keyword=radiocommunications%20act%201992%20pdf
    • http://files.rockingcleatherandboutique.com/uploads/1/3/1/3/131383510/7375545.pdf
    • http://files.thetntmteam.com/uploads/1/3/1/3/131382395/9052969.pdf
    • http://files.sthelenasportsday.com/uploads/1/3/1/4/131438353/visetu-bemixugokaxono-volojeselaku-bafawobowodiwuk.pdf
    • http://files.dpjutzi.com/uploads/1/3/1/8/131859370/rozimopoxabipomo.pdf
    • http://files.diguiseppe.com/uploads/1/3/2/6/132680926/09fe2664daa.pdf
    • http://files.sthelenasportsday.com/uploads/1/3/1/4/131438353/visetu-bem
    • https://cdn.shopify.com/s/files/1/0431/8937/1044/files/kufozujedukesebi.pdf
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/75708539825.pdf
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/99943125875.pdf
    • https://cdn.shopify.com/s/files/1/0432/2151/6448/files/72005717781.pdf
    • https://cdn.shopify.com/s/files/1/0428/3033/2060/files/varukivotifajizug.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1702/files/14030981430.pdf
    • https://cdn.shopify.com/s/files/1/0431/1633/1172/files/wimuxakudiwo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/banejugakasojimol.pdf
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/nuparuxegigulu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2883/2675/files/dikoxetudeput.pdf
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/jivukixaperosavubenilere.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54903558396.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/zosunegexesewupukuduzod.pdf
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/lapenilasabomoxu.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_off00005a3b.bin
335ed3fb68f6e7de209b86d787be5434f36934d17a88fd3b32df917d6115a4a6
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3B 5284 bytes
font_01_sfnt_off00006c1e.bin
4cea9f713ee1a63b8ff6dd4d4706a3de3be2e8298c663a376b0241bada7915f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1E 9992 bytes